Find cheap flights from St. Louis to Ontario

STL - ONT

Find cheap flights from St. Louis to Ontario

Round-trip
Economy
St. Louis (STL)
Ontario
Tue 12/1
Tue 12/8
Any month
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Good to know

Low season

August Best time to beat the crowds with an average 44% drop in price.

High season

December Most popular time to fly with an average 27% increase in price.

Average price round-trip

$332 (avg. price over the last 2 weeks)

Good deal round-trip

$222 or less

Good deal one-way

$172 or less

When to book flights from St. Louis to Ontario

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $172 or less one-way and $222 or less round-trip.
  • The cheapest flight from Lambert-St Louis to Ontario was found 42 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is August.
  • Morning departure is around 71% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking flights from St. Louis to Ontario

Are there Ontario travel restrictions currently due to Coronavirus?

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Top 5 airlines serving Lambert-St Louis to Ontario

Scores according to KAYAK customer reviews

8.3
Alaska Airlines
Overall score based on 29,204 reviews
8.5
Boarding
8.3
Comfort
8.8
Crew
7.9
Entertainment
7.9
Food
Airline reviews

Pros: "It was on time and fast"

Cons: "N/a"

Pros: "On time friendly"

Pros: "Clean, newer plane on time with courteous professional staff. All went very well."
Cons: "Not a thing."

Cons: "Long flight delay with very little information given as to why. The pilot only sporadically gave information about the delay and was not specific about the cause or how long the delay would be."

Cons: "Port of Seattle security is so stupid -3 check points ...really and no directions to follow where to check baggage. Not Alaska fault but Seattle airport “sucks”"

Pros: "That I didn’t have to deal with too many people on the flight."
Cons: "I didn’t like that my cup of ice was taken away from me before finishing the ice to hydrate myself from the hangover."

Cons: "Gate misinformation snafu."

Cons: "We had to go back to the gate after we started the taxi to take off because some idiot had remembered he left a lithium battery in his checked luggage... The service cart kept hitting me and the attendant didn’t even say sorry or excuse me... aisles are too narrow... seats are too small. The guy next to me wouldn’t put the arm rest down because he felt to cramped, so he was hitting me with his elbow all evening... I’m just not happy, but glad to be home."

Pros: "On time"
Cons: "Late at night"

Pros: "Overall I would say I was pretty impressed with Alaska, their crew and their service. I would say that the part I most enjoyed about your flight services was the gogo inflight internet. On my iPhone 6 it worked perfectly and i happily enjoyed multiple free movies on my flight. My wife did experience some troubles connecting with her LG 6. Hopefully as you go along you will continue to work to get better support for all phone types."
Cons: "I think mostly it is because the world has become so allergy sensitive that these things must be avoided at all cost, but I'd say my least favorite part about the flight was the inflight "snack" service. I don't know where these biscotts came from, but I miss the old days of peanuts and pretzels. I will commend you that the drink cart came around 2 times during our flight. I think that is great. But the drink cart was definitely missing Dr. Pepper."

Cons: "I was asked to gate check my bag, which I did. Then waited an hour on the tarmac while they “rebalanced the baggage” which turned out to mean “taking 60 bags off the plane and leaving them.” They didn’t ask for volunteers or even tell us until we got to baggage claim and our bags didn’t show. The carryon I was asked to gate check will now be held at least 24 hours. Totally deceitful and unprofessional."

Pros: "The weather was exceptionally bad with very low visibility and lots of turbulence. I don’t know where they found this magical pilot - he managed to navigate the turbulence and land on a dime beautifully. Well done Alaska Airlines. And give that pilot a raise!!!"

Pros: "What sets this airline apart from the others is its aircraft. Charging stations, inflight WIFI and the free movies is excellent. I will recommend to any one I know who flies!"

Pros: "The plane arrived on time and we even landed a bit early to our destination! The crew was very friendly and helpful!!"

Pros: "Great service, smooth flight and I'm time."
Cons: "The two tiny cookies were way too wimpy for such a long flight. There should be at least a protein offered for free to all passengers."

Pros: "I like the crew, they served everyone well on the plane."
Cons: "While the pilot was taking us to the runway before takeoff, there were some noises that could be heard in the roof. I was scared. My dad was sitting in front of me, and when we got off the plane he told me he heard the noises too, and saw some passengers that looked worried who heard the noise as well. My dad works with airplanes, and he said it might have been the panels overhead rattling that was making the noise. Other than that, the flight was okay, but i think the aircraft should be checked out."

Pros: "The snacks and leg room in premium. The flight wasn't busy so it was nice. My bag got delayed so they rushed it to me that night and gave me credit towards future flights. Very nice."
Cons: "No personal TVs in head rests"

Cons: "Flight was delayed."

Pros: "Direct flight, crew to Stl great, to Pdx average"
Cons: "No suggestions at this time"

Pros: "Was okay"

Cons: "The short seat belts"

Pros: "Flight crew were very informative and very kind. The"

Pros: "Boarding was a breeze and the the staff was friendly and made sure things were well taken care of."
Cons: "The in flight special meal there was only a select number of them on board so by time the cart got to me they were sold out. Come on Alaskan should've had enough for everyone."

Pros: "The plane was very spacious and had a lot of leg room. The outlets were very useful."
Cons: "Nothing to complain about."

Cons: "It was not clear on what luggage was allowed until after I paid then I found out that luggage was extra for each suitcase. This should be Honest policy where you show innocent people that the luggage is not included and not wait until after they pay"

Pros: "Great service. Comfortable seat."
Cons: "Lack of choices for snacks. A bag of pretzels and a cookie might be okay, but having fruit or cheese would be nice. Also, the butten for recling was very stiff, which made it quite difficult to move my seatback."

Pros: "The flight took off on time and got to the destination on time. It is a great experience. The flight attendants are nice and friendly as well."

Cons: "Ran out of the food I wanted to order"

Pros: "Alaska Airlines makes it very easy to board the plane, especially if you use theor app. After checking in, you can pay for bags and get an electronic boarding pass on your phone. Very efficient!"
Cons: "The food on the flight was very limited unless you wanted to purchase something. Can't expect much from a shorter flight like I had, but more options would have been nice."

Cons: "Missed my flight because of their staff"

Pros: "Fairly comfortable seating,friendly staff."
Cons: "Very long walk to concourse,outdoor boarding."

Pros: "Crew were all markedly genuine. Not just polite or courteous. They all came across as interested in our comfort and safety. When one of the ground crew came into the boarding ramp from outside to hand some supplies off to a flight attendant he even said good morning to everyone. I didn't eat the food or use the entertainment because I had both covered, so I gave them 3 stars."
Cons: "Boarding process was a little hard to understand. It seemed like it might be from back to front--which I thought made some sense. But others seemed a little confused too. If there was a way to make it clearer to all that would be great. Like boarding groups explicitly outlined in print based on your seat number or something."

Pros: "Space on plane and staff"
Cons: "Na"

Pros: "Everything was great"

Cons: "Flight was delayed a couple of hours- first couple, weren't able to tell us when it was leave so we couldn't make other transportation decisions. Arrived after rental car counter closed, spent night in airport, received form letter in response to email (that did not request additional reimbursement)"

Pros: "I travel with a fragile instrument, and everyone was helpful in ensuring that I stowed it safely."

Cons: "I've flown with many airlines and the one thing that I appreciate the most when flying is having the ability to watch programs from the televisions on the back of the headrrst."

Pros: "The power plug to charge phones or tablets"
Cons: "Didn't like the fact that I couldnt choose a seat until 24hrs prior to my trip.."

Pros: "Same as above"
Cons: "Same as above"

Cons: "I am staying in seattle for the night instead of my cousins house"

Pros: "Attendants were very helpful. There was a blind person. That had a few issues and they were there."
Cons: "Seats are very tight"

Pros: "The flight attendant was very attentive to our needs while traveling with 2 small children."
Cons: "The entertainment offered was very limited for a 4 hour flight."

Pros: "Very quick boarding, left on time and arrived to our destination early."

Pros: "Service"

Pros: "The service crew was very helpful, efficient and friendly! The pilots were top notch. We had some rough chop which blew us all over the place, especially on landing, but the pilot took us in with a degree of skill and smoothness I have not seen before. Boarding was very efficient and we arrived a few minutes early! I would ride with those guys again anytime. Thank you!!!!"
Cons: "Tight seating, tight isles, unhealthy on a body for even a four hour flight. I felt it this morning even after a good rest! I suggest planning some heavy stretching after these flights."

Cons: "First plane had a broken wing and we switched planes which was the only positive situation because it only took 20 min. Then on the next plane it smelled like sewage and yet to find out when me grandma opened her over head when we landed it was filled with sewage not pleasant at all ruined one of the passengers luggage and lucky it didn't leak on my grandmas head or we would have some real problems n"

Cons: "The crew were about as robotic as you could get. Hardly smiles to the folks , but only to each other.One of the most coldest flights I have ever taken. Need to be more friendly with who is paying your wages."

Pros: "Everyone was courteous. Free refreshments a plus. On time."

Cons: "Food"

Cons: "THE FLIGHT LEFT WITHOUT ME AND THREE OTHER PEOPLE"

Pros: "The crew was nice"

Pros: "Nothing, the flight was canceled without a refund. I highly recommend canceling all business with kiwi in the future."
Cons: "My flight could have occurred or I could have been refunded."

Pros: "Being on time with everything."
Cons: "Nothing"

Cons: "Really felt happy on time touch down nice journey with delta"

Pros: "Pretty much everything"
Cons: "Food somewhat expensive..... boarding off the plane - people with no luggage should get off first then there should be some kind of control instead of everybody just getting in the aisles trying to get their luggage and holding everybody up"

Pros: "Friendly crew"

Cons: "If you can get it he people at the desk to stop making announcements while there are announcements being made over the airport PA system that would be great. Especially when the person chosen to speak has a heavy accent and it’s competing with other announcements. My over 50 ears can’t make it out."

Pros: "Nothing"
Cons: "Better customer service. Your employees should be te-trained and reminded they are in a service industry where your clients have other options to fly."

Pros: "The crew was amazing! The seat was comfortable."
Cons: "Used the self check in kiosk to begin! That was awesome! But after that I still had to stand in line to check in my bags. That part of the process took a bit longer than expected."

Pros: "Nothing special"
Cons: "That was the most uncomfortable and cramped seat I had ever had on a plane flight. Even sitting on the pillow did not help."

Pros: "The entertainment system was good and they had free text messaging through the plane’s wifi network."
Cons: "The plane stank. I was 3/4 in the back of the plane and there was a strong pee odor."

Pros: "I like that I arrived at my destination safely."
Cons: "My allergies were bothering me due to the airlines allowing animals to travel as passengers, in this case a rabbit. I am very allergic to animals. My breathing was compromised."

Pros: "Crew was great seats comfortable but quite near back my connecting flight I had to get my seat when I got to the airport I was second from the back but close to washrooms"
Cons: "There was no entertainment on second flight but I didn’t use it anyway On second flight washroom was not very good my scarfe dropped on the floor and was wet and yuckie"

Pros: "This had one of the best attendants I have encountered. She was extra friendly and made us feel good."

Cons: "The flight was 2 hours delayed.. this cause a lot of inconvienece.."

Pros: "I liked that military boarded first."
Cons: "I think disabled US Veterans should board with active duty and retired military"

Pros: "Nothing."
Cons: "- Put a special meal request. Meal request (vegan vegetarian) was confirmed on my boarding pass. However, when service came, flight attendant informed me that "I don't have any left. sorry". So I went 15 hours without food. - Ceiling light was "broken" and falling off. The light would not turn off, so I went 15 hours with no sleep. Overall very rude and low standard service."

Pros: "Everything was on time and efficient. I also liked that the captain came on and updated us on arrival, turbulence, weather, etc."

Pros: "Excellent"

Cons: "Flight was delayed out of St. Louis causing several of us to miss our connecting flight from Salt Lake City to Portland. Delta was of very little help in assisting us in making a connecting flight. They could have at least helped with travel arrangements and provided us with a little food, a pillow and a blanket as we waited in their terminal for the next flight on their airline which was a several hour wait. I understand these things happen but the passengers didn't cause the problem and Delta needs to take care of people better if they expect to earn repeat business."

Cons: "Ac not working at last 30 minutes of flight."

Pros: "Not much"
Cons: "The re route to MSP... Seven hour flight time for a two and half hour flight..."

Pros: "Nothing"
Cons: "We lost our whole vacation and had to pay for the plans fare twice because My last name was spelled wrong on our tickets and we were unable to use them because my passport didn’t match the name on the ticket. We had to rebook everything pay almost twice as much for the plane fare, our Lodi g cost more and our trip was delayed for two weeks. Vyama is blaming us for spelling our name wrong and claimes that it’s our fault this happened because everything is automated. There saying they don’t touch anything that we enter into the booking but somehow everything they claim we entered is now in all capital letters and the space between our first name and middle name is now gone and all run together. The coustomer service number gets you to someone in India. I have tried to get this addressed four times now at first they tried to place the responsibility on the airlines now us and they have hung up on me twice. Kayak has been worthless, they also just pass the responsibility on to someone else. We will never use them again ant I intend to make sure that this mess is put out in social media to hopefully keep others from having their travel plans ruined by their flawed system."

Pros: "The food that was served was good. The crew was attentive and nice ."
Cons: "Comfort seats didn’t seem like much different than reg seats. Didn’t like the cattle call boarding process at lax ."

Cons: "They changed my flight to a different one departing 2 hours earlier and did not notify me! The original flight was still available & they would not let me take it despite my reservation paper work. CRAZY! I have a two hour drive to the airport this gave me the option to leave home at 2:30am or go the night before and pay for a hotel. Flight was managed by DELTA who also did not care! All involved blamed each other. Beware"

Cons: "Customs officials are incredibly un-helpful and slow. I almost missed the next flight because of how slow was that part. I hope Delta can speak up for the passengers, because we cannot express that to these rude people."

Pros: "This was not my original transfer flight but everyone was much nicer and helpful than serious and being rude. Love Delta, I did not flight United because I wouldn’t have met my United flight once landing in ATL. The Young African American woman who was at the gate was amazing and so reassuring that I would make my flight to Chicago. Would book Delta, just because of how nice she was to me."

Pros: "loved the airbus and in flight movies good stufg"

Pros: "In flight movies"
Cons: "The flight was 3 hours late taking off which made us miss our connection to chicago so we are stuck in Atlanta tonight with unplanned expenses we were not planning on!"

Pros: "Very friendly crew"
Cons: "Seatbelts very short given ample seat size"

Pros: "Everything from the check-in to the landing was great. We were well informed about what was going on with out luggage (we were on a regional flight) and the assortment of free snacks were superb! I guess I'll be a returning customer"
Cons: "I was expecting some form of entertainment (radio, overhead monitor, etc) on the CRJ700. But it really don't take away from the experience since T-Mobile partnered with the Wi-Fi service and I received a free hour of Wi-Fi!"

Cons: "To be clear, I do not have an issue with overweight people. That being said, I was put in an extremely uncomforatable position on this flight. My seatmate was a woman who easily weighed 400 pounds without the slightest exageration and was 5'7 at best. She carried all of her weight in her midsection and behind, which was truly uncomforatable for us both. As she attempted to squeeze into the aisle seat it became apparent that with the armrest down it was not going to happen. She raised the armrest and finally maneuvered into her seat and part of mine also. Not only was her bottom in my seat but her stomach was resting on my entire right leg. It felt like a toddler was sitting on my lap. This was beyond uncomfortable and embarrassing for us both as it was clear that she knew how intrusive this was and kept apologizing. My leg went to sleep after about 15 minutes so I asked to be let out. I approached the flight attendent and requested that my seat be changed to which she responded that the flight was full. I know it wasn't because I could see an empty seat about four rows in front of me. Finally I sat back down but every 15 minutes or so she would get uncomforatable and get up to stretch. The first time it was a welcomed break, until she came back and flopped in her seat with so much force that it felt like someone had ran and jumped in my lap. This occurred 4 or 5 times during the flight. I am not sure what the policy is for obese passengers, but it should be relooked. As a passenger I should not be put in a position to address another passengers weight. I also should not have to pay for a seat and only get to use 2/3 of it. Lastly, no one should ever be allowed to put their body parts on top of another persons lap and that be considered ok."

Pros: "Airport is clean and easy to to use. TSA easy to go through. No lines. Boarding was easy with no issues. On-time"

Cons: "If flight is full all the time get a bigger plane"

Cons: "My flight got to New York so late!!!! I missed my international flight."

Cons: "Not great communication from gate or staff on board. Failed to provide adequate water. No ice on super warm flight. Just bad experience overall."

Pros: "Spacious, clean, great host and hostesses. The flight arrived at our destination 30 minutes early."
Cons: "Nothing."

Pros: "Newer plane! Comfortable"
Cons: "Nothing just great"

Pros: "Everything up to departure. Sat in line for almost an hour."

Cons: "Not enough water on the flight and we landed in a parking lot and shuttled back to the airport."

Pros: "Orderly boarding process."
Cons: "Overweight people being seated int he middle seat and sticking their elbows over both arm rests while comfortably sleeping."

Pros: "Everything was good. The crew was friendly and helpful. The food was delicious and there was more than enough. Boarding was fast."
Cons: "On my flight from Munich to Atlanta, the movies and tv series wouldn't play. Only the games worked."

Cons: "turbulance"

Pros: "I was cleared for standby! Flight attendant at the stl gate is always friendly and willing to help! I love her!"
Cons: "I waited almost 6 hours on the phone the night before the flight to get on standby! Almost didn't get the flight! Was charged $50 only to not get on my next flight because it was over booked! Flight attendant was very rude!"

Pros: "I liked that I was able to get able to get an earlier flight!"
Cons: "I don't like that I had to pay $50 extra dollars for standby on both legs of my flight! I am a very loyal delta customer and these past times flying I feel like my favorite airline is turning into the bad airlines delay everytime, problems with the plane fare prices too high! I'm starting to think about taking my business elsewhere!"

Pros: "10 minutes early departure"
Cons: "There isn't enough seats in the gate area and sitting on the runway for 10 extra minutes we could have been early"

Pros: "The entire flight was good."

Pros: "Crew was very accommodating and friendly."

Pros: "You got us there safely."
Cons: "Not sure who is at fault for running out of de-ice solution, but keeping us sitting on the tarmac without air ventilation for almost 3 hours... with only an apology and a last minute glass of water? that was terrible customer service."

Pros: "great trip and crew"

Pros: "great trip and crew"

Pros: "Flight did not take place because of cancelled return flight. the whole itinerary was cancelled."
Cons: "because of cancelled flight I had to schedule a new itinerary directly through American Airlines. The cost increased from $947.50 to $1,873 plus airport parking for 17 days."

Pros: "I fflew Delta last Nov. Had meals movies dinner inks etc. American I am serv d beverages no meals and no movies. Getting ridiculous"

Pros: "Great seats in first class"
Cons: "N/a"

Pros: "Room between rows Entertainment from St Louis to Phoenix"

Cons: "Flight was delayed"

Pros: "We got to our destination safely, and American provided us with extra legroom seats."
Cons: "Service was curt and there was only phone-based entertainment."

Pros: "The crew was great"
Cons: "The seats were not comfortable and boarding was a pain. Not sure why you wouldn’t want to board from the back to front. Weather grounded us at our loading airport so we were stuck with the option of staying the flight or going in the lobby."

Cons: "Gate agent told me it wasn't his job to quickly verify if my luggage had made it on the plane after my 10 minute sprint in PHX. I know at my job, I don't get the luxury of telling customers "it's not my job", especially when the customer has had a bad experience with us."

Pros: "Enough leg room. Free movies"
Cons: "Nothing really"

Pros: "The staff was very helpful"
Cons: "I did not like the fact that, I was ask to help a non English person, whom spoke French find their way to the departure area from check in. I could not understand their broken English. That I feel is the job of the person or staff trying to check them in."

Pros: "The pilot was great. Avoided turbulence and arrived about 20min early. Easy to find seat and stow bag. Smooth takeoff and landing."
Cons: "Alaska airlines was who I thought I was riding with but the itinerary changed past min. Gate change and the airline itself was changed. Really confusing since I printed my boarding pass the night before."

Pros: "Smooth boarding. On time flight"
Cons: "No gluten free snacks:("

Pros: "The flight was what one would expect from a domestic airline. They did provide free movies/tv which was nice. It was one time to leave and on time to arrive."

Pros: "Excellent. on Time. Friendly crew"

Pros: "Planes were punctual and smooth flight"

Cons: "don’t know! didn’t get to phoenix because of plane issues"

Cons: "The flight was a bit delayed and was not cleaned at all, may be because of short of time, but minimized the further delay, so acceptable."

Cons: "Me 6’ 200 lb sitting in middle seat next to somebody that needed 2 seats for self (pls understand I’m not unsensetive nor prejudice just stating a fact). I requested to sit in last row (of both sides of plane that were empty but attendant said sears reserved for attendants - 2)."

Pros: "To be fair. The flight is only 50 minutes. By th time you get a drink it's time to land. It is completely unfair to the staff to have to do that. A flight like that. Have a box with a snack and some coolers that have 5 different beverages. I wouldn't even sell booze. I person can hold out for a flight that shot to get one on the connection or in the terminal."
Cons: "It's always a cramped flight. Nothing to be done except use a bigger, more spacious plane. The good thing is it's the fastest way to get to Chicago from where I lived it would take 6hrs by car."

Pros: "Spacious seats"

Pros: "Mostly friendly staff and quick flight time."
Cons: "Only half the plane got snacks and drinks. Additionally, I was forced to check my bag, which is a pretty big deal because I was connecting to an international flight and was unable to retrieve my prescriptions in all the rush to check my bag."

Pros: "Prompt boarding"
Cons: "I could never sync in the entertainment app and wifi"

Pros: "everything was on tyime"

Pros: "A nonstop flight, with a friendly efficient crew, met my expectations. A crew member went above and beyond when I asked for a coffee stirrer with my coke and ice."
Cons: "I've been spoiled by another airline's access to screens on the back of the headrest. I have my own hand held devices to entertain myself instead."

Cons: "Delayed a total of four hous!"

Pros: "Flight was on time, staff was friendly and boarding was organized."
Cons: "I'm a small person (5'-2", 105lbs) and I didn't have room to breathe in that tiny little seat."

Pros: "JAL is customer oriented and it's always a pleasant experience. Unfortunately, though the return trip is also JAL, the cabin crew isn't."

Pros: "Boarding was good, Good flight , good service , plane was small for the distance with limited space for movement ,"

Cons: "No food or beverages for me. I slept comfortably on my flight"

Pros: "I don't know how airlines get away with all the stipulations and regualations they have in the buying process there is. Otho g I like about the scam artist they are"
Cons: "The fact they they can just make it a policy and then because the employees have to have a job and enforce it blows my mind. 200 dollar transfer fee plus the difference in the ticket when it's over two weeks in advance. You people are scam artist"

Pros: "You provide me with the best ticket prices and to me that was the the most important part of of the trip thx"
Cons: "The airlines charging for your luggage"

Pros: "Plenty of leg room no entertainment so I dozed."
Cons: "People stuffing oversized bags in overhead."

Pros: "The movies"
Cons: "No Food"

Pros: "One I love free sodies and two I love free sodies with a smile. I definitely got both with this flight crew."
Cons: "Not enough sodies and I couldn't smell my own farts."

Pros: "Frankly there isn't much to say here. After 7 flights in 2 weeks there was only 1 flight with great staff that actually cared about the customers and looked like they enjoyed their job. The rest treated guests with indifference at best."
Cons: "Customer service is dreadful, the planes are so old they still have cigarette lighter charges in first (but of course no adapters), no food/snacks of any significance, and they seemingly cancel flights at a whim with basically no staff to help re-book the lines of guests that have been disrupted. I pity those who loose luggage AA baggage services are flooded with lost baggage they just don't care any more. Seriously its embarrassing how little they care about customer service."

Cons: "We were delayed for 4 hours, due to a mechanical issue. We were not given any forms of reimbursement. I would like a 500.00 voucher."

Pros: "It was a short flight to begin with but due to winds it was delayed."
Cons: "Due to bumpy air nothing but water was handed out to cabin passengers. 1st class managed tho. We were asked to stay seated almost the entire flight, although people still went to restroom as needed. After a late night it would have been nice for a little bite to eat. But apparently mother nature thought otherwise."

Cons: "Flight was delayed."

Cons: "Would be nice to know ahead of time if flight is equipped with an in seat television so as to be prepared to bring headphones."

Pros: "We arrived safe."
Cons: "Departure 1.5 hours late. Missed connection. Travel took 16 hours instead of 6 hours."

Pros: "All great."

Cons: "They never called me as I was told due to my handicap needs. When I arrived I had no wheelchair and when I got to my distandnation they gave away my wheelchair and I had to wait for another one"

Pros: "Everything was timely."
Cons: "No complaints"

Pros: "I was very pleased that the attendant gave me a free drink since I had a military ID. It was very kind of her."
Cons: "The flight was delayed multiple times. We were never informed as to why this was. It was very frustrating since I had a connecting flight into Tucson from Dallas. I got off the plane with twenty minutes to get to my next flight which was not in the same terminal. The plane was also incredibly hot while we waited to take off, I was beginning to become uneasy and nauseous."

Pros: "I arrived safely at my destination."
Cons: "The two-hour delay from our original departure time to Ontario was inconvenient and aggravating. To make matters worse, gate employees were kept in the dark about flight delays on numerous occasions. The cramped seats were absurdly tiny."

Pros: "Zero of it"
Cons: "The fact they cancelled this flight for no reason, didn't contact me at all even though they had all of my information and than barely tried to re book me. They wanted me to take 3 connecting the flights the next day. And the next flight I was able to get on 24 hours later, I almost wasn't allowed to check in because they couldn't find my reservation."

Pros: "Airplanes are newer with onboard entertainment of all sorts for both adults and kids alike. Seats are comfortable Checking in was a very quick easy process"
Cons: "Nothing"

Pros: "Very good service"

Pros: "Arrived a little early!"
Cons: "7/8 size Brazilian airplane."

Pros: "Quick boarding, departed on time, arrived early, good cabin communication"
Cons: "This is a very cramped commuter jet, just one flight attendant to serve entire plane, she came by once for drinks but not a second time"

Pros: "Efficient crew. It"
Cons: "It was good overall."

Pros: "the fact that the flight arrived on time without delay and the gates were easy to locate."
Cons: "How on earth did my i arrived lagos and only one out of my two bags showed up, i have to extend my stay in lagos and hoping my bag will come the next day, i have to pay $100 extra just to extend my one night hotel booking to two nights."

Pros: "Crew was extremely friendly."
Cons: "Temperature was way too warm."

Pros: "Nothing"
Cons: "No meal on business, no free internet, no entertainment"

Pros: "smooth flight, good service"
Cons: "hold up to board family with 2 much luggage, overhead bins 2 small"

Pros: "The boarding process went smoothly and was on schedule."
Cons: "Overhead compartment filled up and it was hard funding space for my bag."

Pros: "Good crew"

Cons: "Massive delays on both flights out of O'Hare... No leg room...."

Pros: "Everything was great on the flight- we even got a snack ( stroopwafel cookie reminiscent of when I lived in Amsterdam ) and a drink. I haven't flown united in a while and was pleasantly surprised."
Cons: "Nothing but my flights were short ( under 1 hours)"

Pros: "Awesome stewardess Donna gave me the opportunity to find a clear row to myself for more room being a wider guy and was an all around class A attendant. Excellent hospitality, thank her much. And thank the crew for such a smooth flight!"

Cons: "Completely missed meeting due to 6 changes made during flight - Ask for a refund of some sort and non was given - not even air-miles or ticket recognition. Customer service from United was almost non existent. Will not be flying with united ever again."

Pros: "Good"
Cons: "Good"

Cons: "Little more time between flights would be nice"

Pros: "Flight was on time, crew was nice."

Cons: "Luggage compartment too small even for a rolling laptop bag"

Pros: "I like the seats and the leg space .they were very comfortable ."
Cons: "No comment"

Cons: "The delay. It was approximately a 2 hour delay getting to Arcata."

Pros: "Wifi on flight"

Cons: "Constant updates, saying more delays"

Pros: "All the crew were friendly and accommodating."
Cons: "Waiting so long for the flight to actually take off. Very late !"

Cons: "My luggage got soaked in overhead compartment. Signed rare book was ruined by another passengers' luggage that leaked liquid and soaked my bag and contents inside."

Cons: "Everything was good"

Pros: "Gate agent was great.... Have me an edit row seat. But my 90 minute flight from St Louis, led to a 40 minute wait for my bag"

Pros: "Fast flight, friendly and funny crew."

Pros: "New (to me) lime sparkling soda And a cookie too! Seemed to be a little more seat and leg room."
Cons: "I only wish your branded credit card did not cost$95.00 after first year."

Pros: "we were 10 minutes early to the gate"
Cons: "super cramped quarters, like touching legs to the next person the whole squirmy flight close... the plane was made for little people."

Pros: "Price was lowest for that date and itinerary."
Cons: "Feels like United is second class compared to other carriers. I purchased this for my Morher-n-Law who rarely flies was traveling by herself. there were 7 gate changes 3 day of. I Was very concerned if she would make it."

Pros: "Rain delayed our take off but most of the time was made up. No complaints!"
Cons: "Forced to check our carry on suitcase even though there was plenty of room above the seats."

Cons: "have no idea if I'll even make it thru the day."

Pros: "Staff seemed lively and created good atmosphere; thank you."

Cons: "Late out of Stl. Missed flight out of Chicago"

Pros: "The crew was very pleasant and professional in spit of all the grumbly passengers."
Cons: "First boarding was aborted and passengers were sent back up jetway to waiting area. This was due to a mechanical issue with the plane, which I am glad they noticed and took care of. However, getting to the plane's door and then being told to go back to the waiting area was unpleasant."

Pros: "Flight was on time"

Pros: "Google service on United Airlines not pleasant in the flights were delayed all the time"
Cons: "Bad experience flying with United Airlines sorry"

Pros: "On time. Quick boarding, very efficient."
Cons: "Stewardess was a little grumpy."

Cons: "Delayed over an hour in STL, which caused me to miss my connection to Hartford. United rebooked me on Delta. I had to go from STL to Newark (United) then to Detroit to Hartford (Delta). I was in airports for over 14 hours. I was 7 1/2 hours late leaving compared to my original schedule and arrived at the hotel the next day. I had 5.5 hours of sleep for an interview that I traveled for in Hartfford. Thanks United."

Pros: "When I arrived in Ontario my bags were there."
Cons: "The plan to San Fran was packed. I had the window seat in the last row. It was terrible. From SanFran to Ontario the flight was a very small plan and the stewardess was not very helpful. Just doing her job."

Cons: "Late and rude"

Cons: "Flight cancelled due to mechanical, re-booked on Delta who had to re-book me on Alaska due to mechanical. An 8 hr trip turned to 22hrs."

Pros: "When we got to Chicago we didn't have a plane so we had to wait hours and then walked to another gate .. Wait for another hour and then they said we would not have anything to drink or eat in the flight"

Pros: "The attendant at the boarding counter was very helpful."
Cons: "As we are flying international and had a single itinerary, They didn't allow two checked in baggage's inspite of repeatedly explaining them that we have to take connecting flight which allows two checked in baggage's for each person."

Pros: "price was great for new years day."
Cons: "flight was delayed due to a late flight attendant and then delayed again because they flight attendant didn't know about her destinations and thrn delayed again so she could prepare for her upcoming trips. This was all announced on the PA system. In total, the flight was delayed about an hour and 20 minutes."

Pros: "Boarding by Group. But crew was courteous, and flight was on time without delays. Handling of carry-on luggage went smoothly."
Cons: "Change of gate at last minute."

Cons: "Our original flight got cancelled out of St Louis, not once did the service agent tell me I could rebook my connecting flights myself on my phone. When I found out, I successfully rebooked my partner's flight and my reservation disappeared. Because of this I was on standby (along with 87) other people while my partner had a ticket."

Pros: "Was fast and smooth"

Pros: "First flight went great."

Pros: "I thought it was it was a good trip considering safety, the amount of passengers, logistics, etc. Amazing!!!"
Cons: "The movie I wanted to watch and was listed in hemispheres magazine was not found when I scrolled through movie listings available."

Cons: "Flight delayed 2 hours! Seats don’t recline in coach!!"

Cons: "We arrived very late due to the airline being run so poorly. Something about paperwork according to the pilot. Now the rental car company is closed so I have to sleep at the airport and wait till the budget opens again in the morning. Frontier should put me up in a hotel as their mismanagement caused the delay not the weather. But they just said too bad because the flight was less than 4hours late. Frontier - never again!!!- plus the seats are painful"

Pros: "a bit better, the flight was only half full so it made the experience more enjoyable overall."
Cons: "Kinda annoying they are always trying to upsell."

Pros: "Very cheap"
Cons: "Very uncomfortable no elbow room or leg room and the chairs are hard."

Pros: "The staff that handled baggage was nice. Also, I liked that we made it safe."
Cons: "My flight was supposed to leave at 3:50...I got to the airport and went through security before I found out that my flight was delayed until 7:30. The flight kept getting pushed back. I waited 8 hours before the flight took off. There no outlets anywhere...leaving customers at a disadvantage because with our delay, our electronics were all almost dead or dead. There were no food options. We were supposed to get a voucher, and I have not received it. Lastly, after waiting over 8 HOuRS, we still had to pay for snack and drink. I was ripped off and will not be flying with Frontier again."

Pros: "Finally landing!"
Cons: "It felt like the rear end was going to come off the way it swayed after take off. The commode messed up causing a stench in the back of the plane, (where I was). The ride was very bumpy and the pilot intercom was hard to understand. We got delayed taking off and landing."

Pros: "My only good then was that I had wonderful passengers around me that were conversationalists who were entertaining and helpful!!"
Cons: "Can't you learn how to communicate faca to face with people? Let us know personally why we keep getting held up for take off, why we are being left in the dark, andehy you can't schedule more accurately! It doesn't help to fly somewhere if you miss the event you went to attend! Try compensating for our inconveniences for a change!!!!"

Cons: "Loudness And over priced EVERYTHING"

Pros: "new jet. enough leg room (i'm male, 5-10). Overhead bins are normal size (can hold typical carry on), not the microscopic ones. Everything was on time."
Cons: "STL ticket counter was only staffed 2 hours before the flight -- which makes sense if they didn't have more flights, but the signs weren't big and complete enough for passengers to realize what was going on and how we would check our luggage. So we were standing around a bit confused. Once Frontier people showed up, it was fine. Also, coming back to STL, I had a 2 hr shuttle bus ride that was leaving 30 minutes after arrival, and although the plane arrived on time, the luggage didn't reach me until 37 minutes after, so I had to get a hotel room for the night. I don't know how luggage handling works, so maybe not Frontier's fault at all. 30 minutes isn't much time, but it was a direct flight, so I thought it would work."

Pros: "Friendly on time service"
Cons: "Baggage fees"

Pros: "We landed safely"
Cons: "The flight crew was atrocious. They were rude when they spoke to us and when I asked for refreshments they turned around as if to get them for me and then the lady sitting next to my husband had to get their attention again to ask a second time if I could have water and Chex Mix so I could take my medicine. I have serious health conditions and I couldn't even get water without paying $3 a bottle. It is disgusting to me that we are charged for flight and then charged for Refreshments during that flight. Any other Airline who charges for a seat to take you to your destination includes at least drinks and nuts for free but not you."

Pros: "Crew was awesome! They handled a rude passenger perfectly."
Cons: "Very small seats, trays, etc. Charge extra for everything. Bags, soda, snacks. At least they were reasonably priced."

Pros: "Flight departed and arrived on timr"
Cons: "Pricing structure. Misleading. Seats...horrific."

Cons: "online check in and seat assignments is so concentrating on upselling that it is difficult to use. I also don't appreciate the bait and switch pricing. The flight costs $x, but then if you want a seat not located in the unheated cargo hold, that is extra."

Pros: "Plane was clean. Seats were very comfortable l, but not much leg room"
Cons: "They charge for for everything on this flight. Checking in - it cost $35 to check your bag in - $40 of you want to board with it! I do all the work and I have to pay more? Then to pick a seat - any seat - it is another $5 - $25. I understand that for premium seating (ext, etc) but any seat? Finally - drinks and snacks - that costs money too. While the fare looks cheap - beware of all the add ons. At a minimum, you have an additional $70 to $100 to the price of the ticket This does not turn out to be a cheaper price....beware."

Cons: "My flight was supposed to leave at 8:p.m. We left at 12:30 am. Hot in at. 2:00 am. Had to be at work at 7:00 am. Got home at 3:00 am instead of 10:00. How do you think people were. They were very disappointed Terrible airline"

Pros: "I got where I was going to."
Cons: "One zone isn't even through the door and the next zone is called and all we do is stand in the very hot jetway for nearly 15 minutes. Being charged to pick our seat and for our luggage is ridiculous. It should be included in the price, if you have to raise the price then at least people would know better the true cost of their travel. Being charged for a drink! Having $1.99 put on a credit card! Wrong."

Cons: "You charge extra for everything."

Pros: "The only positive experience was their flight attendants - they were funny and entertaining"
Cons: "Ridiculous- I had no idea that Frontier was one of these airlines that hook you with a cheap flight price then charge you for Absolutely Everything else! $40 to check a bag, $2 for a soft drink, $9 to pick a seat in the back of the plane! Completely misled and uninformed! Never again!"

Pros: "Cheap"
Cons: "EVERTYHING is an added on cost, no frills, cramped,"

Pros: "Friendly staff, large plane, cheap fare. I researched all the potential additional fees before my flight. Do your homework. It was a cheap, direct flight at a good time. I chose not to have a carry on, and I packed snacks for myself."

Cons: "Seats were extremely uncomfortable. Tiny tray tables."

Cons: "Your website says zone 1 first to board plane so I paid extra for seat in zone 1 - we were last to board No leg room - very uncomfortable- - didn't know I couldn't recline until I sat down Our main flight attendant was rude"

Pros: "Boarding was good. Flight crew was good."
Cons: "The space in front and sides of the seats are way too cramped. I will do whatever I can to book another airline rather then fly on a plane with so little "human" space."

Pros: "Crew was personable, and captain had a sense of humor. The flight was underbooked, so I had an entire row to myself, which was nice since there's very little elbow or leg room on frontier flights anymore."
Cons: "Somehow, the passenger across the aisle from from me was vaping marijuana. There was no flame, but the odor was unmistakable, and there was smoke. Crew either didn't see or chose to ignore. We landed 10 minutes late (I'm assuming because of snow at arrival destination) and waited another 15 minutes at the gate for the passenger boarding bridge to connect to the cabin."

Pros: "I was very pleased from check in to arrival. Seats are comfortable and appreciated being offered water. Very efficient crew and seemed dedicated to their job. Had no surprises since all the info was in the paperwork. Will fly Frontier next time also."

Pros: "New plastic molded seats on the Airbus are much more comfortable than the old style seats. Flight cost was a bargain."
Cons: "Although the cost to book the flight was cheap, the costs added up with seat booking fee plus bag fees plus a charge for any drinks except water. No more freebies."

Pros: "We love flying Southwest and the freedom of it has become our gold standard. HATED: Baggage fees Narrow seats Charges for CARRYONS...REALLY??? And the deal-breaker for us... That will be $1.99 for your (mediocre) cup of coffee, please. Oh, yes...and the flexibility of Southwests no cancellation penalty... PRICELESS! Thanks for asking."

Cons: "The seats were not very comfortable. You have to pay for carry-on and checked luggage. Then you have to pay for water. Might as well have use a different airline and payed a little more. The price of water and luggage would make up the difference."

Pros: "The price was good. Boarding was relatively painless and quick. The plane appeared to be new and was pretty clean. We were on time and even a little early."
Cons: "The woman behind the counter in St Louis was not friendly. I prefer to be able to use my TSA pre check status rather than wait in a security line for 30 minutes but for whatever reason Frontier does not offer that luxury."

Pros: "Your baggage policy is ridiculous and i might add a regressive fee inherently unfair. A single mother of 6 traveling to her mothers funeral will be hit harder by this than a business traveler. Many of us on the lower end of the income scale carry on to save what can be used on groceries pr heat. Yoir counter staff are also peremptory and rude. I will now factor these additional costs into your supposed fares you sjow online. Likely i will find other airlines are actually better deals. do you really think uoir cusyomers ste thos stupid? We know ur showing low fares and making it up w fees!"

Cons: "Delayed departure from 7AM to announced "possible" 12:30PM. Delay reportedly caused by "flight crew having timed-out" leaving our plane without a crew in Las Vegas. This very long delay made my trip unfeasible, forcing me to cancel my trip entirely, and my wife, having to shorten her stay in Florida by three days."

Cons: "seat fee; carry-on bag fee. When I buy tickets, I should have the right to know what my full cost will be, Sorry, I Am not an experienced flyer, but all the unknown add-on charges will make me loo a lot closer at ticket pricing on my next trip."

Pros: "NOTHING."
Cons: "The service was very poor. From the airport Frontier employees to the the flight attendants. There is an additional fee and charge for everything. My flight was delayed for 2 1/2 hours and upon boarding we still sat in the aircraft for an additional 45 min -1 hour wait! NEVER AGAIN."

Cons: "Cash not accepted for on flight beverages"

Pros: "Boarding and arrival were right on time."
Cons: "No complementary drink or snack on the flight. Baggage fees were much higher than industry average."

Cons: "Don't be fooled! Their flights seem cheap, until you take the flight and they charge you for every little thing- checked bags ($25 each), carry on bag($$35!!), seat ($16, and no, there are NO FREE seats. They even charge you for a soda on the flight- no complimentary soda/juice). By the time it was all said and done, it would have been cheaper to take almost any other airline."

Cons: "Flight was cancelled due to mechanical reasons and no alternative was provided."

Pros: "The seats were clean."
Cons: "The ticket counter did not open until 1 hour before my flight was supposed to board. Although I knew my flight was delayed, the agent at the counter said nothing. Additionally they charge for everything, from your bag to water on the flight. The price is cheap, but not worth the hustle or inconvenience."

Pros: "Boarding was quick"
Cons: "Messed up name on ticket had to call to have changed (would have been charged online to do so) Only saw flight attendant once This airline really nickel&dimes you. Tickets cheap but you pay for absolutely anything you may need. If you travel with absolutely nothing than this airline may be good for you. This is my second time with frontier had poor to okay experiences both times, will avoid this airline in the future."

Pros: "it was a direct flight. It was the only carrier with a direct flight. The plane arrived with no difficulty."
Cons: "The Frontier website was misleading. On check in it asked to pick a seat assignment, which were charged additional money for. I tried to undo the seat assignment (after I went and read their policy that it was optional.) So the website is fixed, that it can not be changed. So I called Frontier and after a 45 minute hold time was told options (seat assignment) can not be changed and I had to pay for it. This added $24 each way for a total of $48 additional charge. Also only a small carry on allowed. so that added an additional charge of $30. The seats don't recline even a little bit. as it was an Airbus and not a Boeing plane. not as comfortable as Boeing. Less padding in seat also."

Pros: "nothing"
Cons: "poor accommodations of the disabled rude staff No ADA accessibility over priced "a-la-carte" style of upcharging"

Pros: "Very disappointing - $45 to carry on a bag or $40 to check? Wish I would've paid the extra $100 to fly SW, Delta, United, ETC. The trays were 1/4 size of an iPad. You have to pay for a soda, water, or any beverage. The seats were small, uncomfortable, and didn't recline."

Pros: "Seating was comfortable and ticketing crew were very friendly!"
Cons: "Check-in process is cumbersome! No online boarding pass, the fact that you have to pay for Carry-on and pretty much any seat that you pick, brings the cost the on-par with others! Don't think I will fly frontier again."

Cons: "No snacks, not comfortable at all, overpriced, yhere wasn't a significant amount of savings because I paid to carry on my bag, no snacks and not comfortable!"

Pros: "There was a lot of things that i didn't like but the crew made me forget about all the bad things. Amazing crew and funny just maid everyone smile and laugh. Without this crew i think i would have hatted my flight but they made it worth it."

Pros: "Airport staff were nice, friendly and very apologetic."
Cons: "The flight was delayed 3 hours yet we were encouraged to arrive at our original time just in case the flight was moved up, which it wasn't, so it made for 5 long hours in the airport. Once on the plane the stewardess were less than friendly, at one point shhh'ing people."

Pros: "The best part is the direct flights to where I am going at decent prices. However, it comes at a cost."
Cons: "Wow. Each trip I take, they seem to have sat in a meeting and asked themselves, how can I make the passengers more uncomfortable. Charge for baggage? Check. Charge for a dedicated seat to ensure you aren't stuck in the middle? Check. Remove the recline feature from all seats? Check. The thing that really killed me though was their "new and improved" seat trays. Instead of the already too small tray on other airlines, they have cut the tray literally in half. All it could possibly hold is a drink. No laptop, no book...Really, were the savings that great over the life of the plane that this was a good buy? The only plus is you have a reason why you weren't able to get any work done on a plane..."

Pros: "This was the only direct flight I found to Cancun which is a big plus. The price appeared cheap and I had recently flown on Frontier on a package trip booked through Funjet Vacations so was aware that seats are small, not well padded, do not recline at all and have the world's smallest tray for your beverages."
Cons: "When I checked in I discovered that we would have to pay $30-35 for checked or carry on bags each way! Only if you are booked through Apple or Fun Jet are you allowed one free checked bag so beware! This increased the cost by at least $60 per person if you can keep it down to just one bag per person. Also, there are not any complimentary drinks, you will be charged for everything. Lastly, my TS-pre check status doesn't matter since Frontier does not participate."

Pros: "Price"
Cons: "Lost my bag. Tiny tray tables. Seats did not recline"

Read more about Alaska Airlines
COVID-19 information

Safety measures for airlines flying from St. Louis to Ontario

Airlines flying from St. Louis to Ontario have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters

Mandatory masks

Masks required on board, masks provided

Social distancing seating

Middle seats unavailable to book

Pre-flight testing

Testing for antibodies, testing for symptoms

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