AUS - ONT

Find cheap flights from Austin to Ontario from $66

Round-trip
1 adult
Economy
0 bags
Wed 4/26
Wed 5/3

Here is why travelers choose KAYAK

Save 22% or moreCompare multiple travel sites with one search

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Search hundreds of travel sites at once for deals on flights to Ontario

Good to know

Low season

January

High season

July

Cheapest flight

$66

Average price round-trip

$345

Good deal round-trip

$187

Good deal one-way

$168
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Austin to Ontario
(avg. price over the last 2 weeks)
or less
or less

When to book flights from Austin to Ontario

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight from AUS to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $168 or less one-way and $187 or less round-trip.
  • The cheapest flight from Austin to Ontario was found 89 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 June, July and August. The cheapest month to fly is January.
  • Morning departure is around 11% cheaper 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 Austin to Ontario

Top 5 airlines serving Austin Bergstrom to Ontario

Scores according to KAYAK customer reviews
8.3
Alaska AirlinesOverall score based on 29421 reviews
8.5Boarding
8.3Comfort
8.8Crew
7.9Entertainment
7.9Food
Airline reviews
Pros: "Beverages and WiFi worked"
Cons: "Boarding was confusing for all, first calling by row number and the changed to group at end. We find one of the flight attendants was extremely rude, the passenger sitting beside us had a small dog, and she force that passenger to push their dog firmly underneath the seat which I felt was hurting the dog and completely unnecessary. Later the same flight attendant outright refused to allow me to go to the bathroom at the front of the plane, I was sitting in row 11 and she sent me to the back of the plane where there was at least 4 people coming towards me. It was highly unprofessional and left me with a bad taste in my mouth."
Read more about Alaska Airlines
Pros: "Beverages and WiFi worked"
Cons: "Boarding was confusing for all, first calling by row number and the changed to group at end. We find one of the flight attendants was extremely rude, the passenger sitting beside us had a small dog, and she force that passenger to push their dog firmly underneath the seat which I felt was hurting the dog and completely unnecessary. Later the same flight attendant outright refused to allow me to go to the bathroom at the front of the plane, I was sitting in row 11 and she sent me to the back of the plane where there was at least 4 people coming towards me. It was highly unprofessional and left me with a bad taste in my mouth."
Pros: "Seat was great. Nice they kept the Virgin size seating"
Pros: "everything."
Cons: "Nothing the service was great"
Pros: "Crew members were so friendly!"
Pros: "Nice crew comfortable seats"
Cons: "Gogo entertainment app wasn’t working very well and would crash a lot during movies."
Pros: "Yes the crew was amazing!"
Pros: "The crew was very attentive and caring. While I worried I wasn’t going to get a seat, the staff reassured me if you paid for a ticket, you’ll have a seat."
Cons: "Alaska airlines did it well as they always do. My only complaints are ones that cross the entire industry where they are in a constant nickel-and-dime the passenger to death mode. This is no reflection Alaska alone all American airlines do it."
Pros: "Crew was excellent, boarding process was orderly and clearly explained."
Cons: "Seat too narrow."
Cons: "The pkane changed departure times, so i was stuck in airport until 440 pm and i had to pay $60, to change ticket."
Cons: "14 hour delay with the worst communication I’ve ever seen. Completely incompetent and almost absurd. Useless."
Pros: "Awesome"
Cons: "N/A"
Pros: "It was on time and fast"
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."
Pros: "Clean nice plane. Free WiFi Free movies. Comfortable seats. Great staff"
Pros: "Seemed to be more legroom and overhead bin space. Fruit and cheese platter was great, esp. for the price. I was impressed with the entertainment options (tablet rentals for less than $10, and some free options with own device). Crew wasn't great, but good enough."
Cons: "The seats seemed narrower than usual. The space underneath the sheets was divided by the seats, so very hard to store anything there."
Pros: "Screaming kid kicking seat"
Cons: "Screaming kid kicking seat"
Pros: "Ammenities were my favorite for sure."
Cons: "I have nothing to be displeased about in my service given by Alaska."
Pros: "Crew top notch, they were professional. Always courteous and friendly. Luggage arrived on time from cruise ship."
Cons: "Nothing bad to say."
Pros: "seat number"
Cons: "the flight was delayed they told us there was no room for our carryon baggage and we had to check it and then found out there was TONS of room to store our luggage the plane was old with broken armrests and super dirty stained floors."
Pros: "Everyone is so helpful and cheery"
Cons: "Only one food choice in first class. Seat fine but hard to recline. Boarding was slow and late. My luggage was sent to the wrong place with a bunch of other peoples. They knew but lest us just wait for 40 minutes around the carousel."
Pros: "Smooth boarding process GREAT! Our 2 cabin attendants were awesome - Jim & Dan. Professional, pleasant, and they were well groomed in their airline attire. Attentative to the first class cabin and individuals too."
Cons: "N/A"
Pros: "I thought the crew was very nice and friendly."
Cons: "The seating of course leaves much to be desired - cramped having 3 people sitting together"
Pros: "Attendants were welcoming, attentive and extremely nice. They all made flying with a 2 year old toddler an incredible experience. Thank you ladies!"
Pros: "Flight went smoothly. No major delays or disruptions."
Cons: "The fact you cancelled and booked me the next day without making any effort for a flight you cancelled because of crew shortages. I am highly unlikely to risk flying with Horizon Airlines again."
Pros: "The flight was on time and the crew was efficient and courteous"
Cons: "Boarding was horrible (like most airlines), too many levels, and by the time we can board, we have a long wait in the loading corridor, at a standstill in the aisle. Seats are cramped and the only thing they offer to eat (free) is a small cookie. They charge too much for internet connection also. I wish airlines would just board from the last row forward, would speed the process up tremendously. I don't care about first class, MVP, military, families, they always seem to be in the front third, and that's what slows everything down."
Pros: "Had a very smooth experience the whole way through. friendly and considerate flight attendants and flight attendant students. Very fun and enthusiastic pilot crew. Got two drinks! They came they multiple times."
Pros: "The plane arrived on time and we even landed a bit early to our destination! The crew was very friendly and helpful!!"
Pros: "Friendly, welcoming staff; on time"
Cons: "Nothing at all!"
Pros: "Cleanliness efficiency professionalism courtesy kindness comfort"
Cons: "Nothing to not like"
Pros: "Airplane was clean and flight attendants were nice."
Pros: "Loved the planes- clean and roomy in regular seats! The flight attendants were awesome. We are spoiled for any other airline now.... ;-)"
Pros: "New equipment, excellent staff and good inflight entertainment."
Cons: "Boarding procedures seem old fashioned and inefficient."
Pros: "Friendly staff"
Pros: "Flight was on time as is usually the case with Alaska Airlines. Staff super friendly! good entertainment options"
Cons: "Internet use on airplane is very expensive"
Pros: "Nice leg room, Flight Was Also Early"
Pros: "Short flight so need for food. Crew were friendly and professional. The plane was clean and flight on time"
Cons: "Plenty of leg room, didn't feel crowded, but the seats were so hard and it hurt my back. Glad it was a short flight"
Pros: "Flight on time and not over booked. Informative captain. Excellent prices."
Cons: "Lacking elbow room."
Pros: "Everything went pretty smoothly both ways (aside from turbulence)."
Pros: "Very friendly and helpful crew."
Cons: "Plane was on the older side."
Pros: "The efficiency of the crew and flight"
Pros: "The first class flight attendant JC was AWESOME :) I really liked the drinks and the in-flight entertainment that JC was responsible for."
Pros: "Boarding was quick"
Cons: "Some of the stewardesses were talking loudly in the back of the plane. Was disturbing for those trying to rest!"
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."
Pros: "Flight attendants were all nice. And especially the workers at the gate they helped me my son and mother change seats to be able to sit together. Everyone was friendly"
Cons: "CHARGE TO MUCH ON OVER WEIGHT PACKED."
Cons: "Nothing"
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."
Cons: "Flight was almost an hour late to board and depart."
Pros: "If they hadn’t of given my seat away, I’m sure there would have been something I’d liked."
Cons: "I had been checked in since the day before my flight and for some reason, because I wasn’t at my connecting gate 30 min prior to when they started boarding, the gate agent gave my seat away. I had to wait several hours for the next flight."
Cons: "Better snacks"
Pros: "I appreciate that Delta chooses customer safety over profit by not packing flights and continuing to social distance."
Pros: "Efficient and sanitary"
Cons: "Baggage handling at Wilmington is extremely slow and typically is."
Cons: "Way exceeded my expectations!"
Cons: "After 1 hour, still sitting on the tarmac waiting to get to our gate."
Cons: "We were seated near the back of the airplane. The heater came on midway of the flight, by the time we landed, it was difficult to breathe because it was so hot. The flight attendant all relocated from the back of aircraft to the front aircraft where it was cooler, I assume. I was worried for my son."
Pros: "The crew was pleasant and professional. The on-board entertainment was excellent and the seats were actually comfortable. I was provided the option to use any restroom by the crew without regard to my seating location."
Cons: "Nothing comes to mind."
Pros: "I have used Delta long time. Used to be really bad. Today. Good good."
Cons: "Free beer"
Pros: "I reached y destination."
Cons: "One flight attendant yelled at me for switching seats, even though I had asked permission to move seats. Another flight attendant clumsily kicked me when leaning over to serve another passenger. After living in Japan, it's pretty rough to see the low bar of American customer service."
Cons: "Boarding was very slow and exiting the plane was also slower than normal. An overhead bin was locked and that delayed passengers"
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: "Crew was nice"
Pros: "Crew was very friendly and helpful seats and movie were awesome!!!"
Pros: "Loved the plane, people and timeliness"
Pros: "Actual flight"
Cons: "Could have done without the almost 5 hour delay and no good options for alternative flights. We got in at 3am and it ruined our trip as we were exhausted for my daughter’s college visits."
Pros: "Snacks and drinks and movies on point."
Cons: "No cheese its."
Cons: "Boarding was disorganized. Snack mix tasted plain."
Pros: "Getting offered a stipend to change flights - getting my preferred rental car"
Cons: "A direct flight"
Cons: "Seat didnt recline and very tight between passenger seats"
Pros: "Nothing"
Cons: "That Delta was not more accommodating when I missed my flight.. Got totally lost in Austin. Have never driven there before and highways were difficult at times. $503 to get on another flight home. Ended up getting better deal at Southwest. Will most likely stick with them next time I am forced to fly."
Pros: "Good landing, great service."
Cons: "Nothing."
Pros: "The service was good, employees friendly and helpful. The plane was surprisingly nice for such a short flight."
Pros: "love that Delta is now giving out Kind bars. Thanks!"
Pros: "Charging stations, roomy seats"
Cons: "One attendant was a bit snarky."
Pros: "Flying and going fast, plus the people are kool too."
Cons: "That it was a short trip."
Cons: "Plane was late numerous times. Boarding was painful"
Pros: "Quick boarding"
Cons: "N/a"
Cons: "Flight was delayed with no explanation, The crew sprayed me twice with the fizz from opening soda cans with no apology."
Pros: "A plenty trip!!!"
Cons: "Ran out of fuel and had to divert to Birmingham. Disappointed. Turned into a 3-4 h delay. When we got to ATL our gate was occupied. All in all very poor service. Delta is better than this."
Cons: "Seat did not recline."
Pros: "love that each seat now has a USB connection to charge your phone"
Cons: "headphone jack to watch movies shorted in and out constantly"
Pros: "Everything was great. Very nice flight"
Cons: "No complaints"
Pros: "Nice flight nice crew just about as good as you would want"
Pros: "Although boarding began late, it was efficient and we left on time."
Cons: "Even a 29 dollar Comfort Plus seat had very little legroom."
Pros: "Great free movie selection"
Cons: "Flight delayed"
Pros: "Despite a delay, we arrived in White Plains on or close to schedule."
Cons: "The gate agent just kept going on and on about trying to make up the time from a delay (18 minutes ...hardly world ending). The lead flight attendant wasn’t much better"
Pros: "Seat back movies Staff was attentive and patient with my sick teen daughter."
Cons: "Old plane with no seat back entertainment on one leg of journey."
Pros: "Delta plane was renovated for the entertainment and seat comfort. This was the first time I didn't have to recline the seat because the normal incline felt fine. Legroom was good also. Every seat had a screen and free media to choose from. Very impressed. Great job Delta!"
Cons: "There was wifi onboard and it was advertised that we could connect and use iMessage, whatsApp and Facebook messenger free of charge but I wasn't able to do so on this flight. I didn't ask about it but this would be an excellent amenity to keep in touch with the people on the ground"
Pros: "Hey, domestic U.S. flights aren't all bad! I was pleasantly surprised by the kind service and amenities on this Delta flight. There's a plethora of free movies to watch, and the crew continually checked on us to make sure we were hydrated. I think Delta may become my new prefered carrier for domestic flights."
Cons: "Bathroom ran out of toilet paper, but staff helped fix this after I talked with them."
Pros: "It was crouded seat were uncomfortable otherwise ok"
Pros: "Great service from the attendents and awesome movie selection"
Cons: "Seats not the most comfortable and boarding was sluggish."
Pros: "Fast flight great service"
Cons: "Nothing"
Pros: "Crew was friendly and helpful"
Cons: "The cheap seats were… well cheap. Not enough leg room"
Cons: "Delta delayed our outbound flight causing us to miss our connection."
Cons: "Flight was delayed over 2 hrs, as a result, I missed my connection, had to stay overnight at a hotel"
Pros: "Promptness"
Cons: "Nothing"

Aside from the 5-6 texts for the flight changing the flight was pretty comfortable

Pros: "Seats were comfortable didn’t have to pay extra for my personal day crew was polite"
Pros: "The crew was amiable. The plane was crowded but clean."
Pros: "Nothing"
Cons: "The crew was rude, we took off over an hour late, there was no food for sale on board"
Pros: "I was arriving only 45 minutes prior to departure time. Not able to check in my luggage. AA ticketing agent allowed me to bring my garment bag through security and to be checked in at the gate. Thank you very much!"
Cons: "Nothing really. Very satisfied customer here."
Cons: "Full can of soda"
Pros: "Everything was normal, except ...."
Cons: "Takeoff was delayed twice for a total of 40 minutes late."
Cons: "baggage was not transported from BA flight to London to the BA flight to Glasgow"
Pros: "The crew was awesome"
Pros: "miserable. Flight."
Cons: "No concerns What I expected for a quick flight"
Cons: "Limited legroom is a problem. Otherwise, the flight was fine."
Cons: "The legroom on AA's new planes is atrocious."
Pros: "Easy flight"
Cons: "No backseat TV or usb charging outlets"
Cons: "Seats in the plane not good, overall an old plane looks like."
Pros: "Seats which I choose where very comfortable."
Cons: "Would have like a choice in food severd"
Cons: "Flight was delayed"
Cons: "Mechanical problems deejays the flight and I missed my connection. Uncomfortable seats."
Cons: "."
Pros: "Short flight"
Cons: "They lost our bags in Dallas. The customer service rep was useless"
Pros: "Enough leg room. Free movies"
Cons: "Nothing really"
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"
Pros: "nothing"
Cons: "westjet delayed my flight once again, so I was stuck in the LAX airport for 5 hours"
Cons: "Wanted more food. Haha!!"
Cons: "No carbs free meals."
Pros: "Smooth ride, easy security"
Pros: "Flight was on time. Attendants were nice."
Cons: "For the 100th time, you seats are too dang small."
Pros: "S"
Pros: "Good price, effective transportation, nothing special"
Cons: "Very full, not super comfortable"
Pros: "Good entertainment options in newer flights."
Cons: "Food options for first class could be better."
Pros: "It's just like very other airlines."
Pros: "Personell at Bagage drop was nice"
Cons: "First the time between connection flights was very short. Then after just making the. Innextion sat for almost 2 hours on board . Missed introductory lunch for my new summer job at my college -"
Cons: "Essentially a bus ride with the comfort of a wooden bench."
Pros: "Quick boarding to make up for a late flight arrival."
Pros: "Airport expansion"
Cons: "Due to construction traffic is a problem but still manageable"
Pros: "I like the movie selection"
Cons: "The landing was horrible like slamming on the brakes in traffic. Also when I bought the ticket from Alaska Airlibes on kayak I had bought it at a higher price specifically for that. There was an American Airlines ticket that was cheaper but I opted to pay more because I thought I was flying on Alaska not American. I was very disappointed to see that I was actually flying on American once I was pro ting my ticket and after purchase and "no refund" message. I was very upset about that!"
Pros: "Quick connection"
Cons: "Tiny overhead bins - even in first class"
Pros: "The stewardess/flight crew were awesome."
Cons: "Airport staff, tight seats and boarding process."
Pros: "Our experience was very smooth. We appreciate all the work that went into making this a pleasant experience for all of us."
Pros: "wifi was great"
Pros: "Plane did not crash."
Cons: "Has anyone at AA ever watched the insane boarding process? No running water on the plane, not hot anything (coffee, tea, food). Generally terrible experience, like most of the airlines."
Pros: "Staff was wonderful."
Cons: "The 20 minute wait before we could dock at the gate An annoying air vent making an intermittent noise... Something broken obviously"
Pros: "The flight was only 30 min"
Pros: "fly was on time"
Cons: "food"
Pros: "Boarding was fast."
Cons: "No internet on plane. Plane was older. Seats were not comfortable. Had to wait 40 minutes in hot plane for our gate to be available for our plane to pull into."
Pros: "Flight attendants allowed me to move into an unoccupied seat to have more room. Very polite."
Cons: "I paid $40 extra to select a seat and the seat was a middle seat and very uncomfortable and a rip off."
Pros: "Crew was very pleasant."
Cons: "Flight was extremely late arriving."
Pros: "The plane was not too crowded"
Cons: "We could have been on time"
Cons: "Legroom, bin space, food"
Pros: "Great crew and friendly service. They are not too hard on customers and are professional."
Pros: "Reliable way to get to Houston. Very short flight, so doesn't make sense to have food service besides the one drink they offer."
Pros: "Good flight, personal device entertainment, on-plane flight attendant helped switch some seats so my family could stick together"
Cons: "Meddlesome gate agent split my family up before we boarded, lost one of my bags at SFO (got it 1.5 days later)."
Cons: "taxi time longer than fly time"
Pros: "Everything ran on time and the staff was very friendly."
Pros: "Although there was a slight delay, the flight was pleasant and the service very nice. We got twice something to drink and a snack. For the short flight, quite remarkable."
Cons: "Everyting was fine"
Pros: "Good service"
Cons: "Crowded"
Pros: "Overall experience was good."
Cons: "The food and the long layover"
Pros: "We liked the crew, they were helpful."
Cons: "We did not like the video on the United flight that used the app. We were not told about this until it was too late and the instructions were not good for how to get the app--they were misleading. I had to go to the app store, not the United website. Also, our seats were changed without our knowledge and the flight description for the flight from Austin to Washington, DC, specified complimentary lunch and there was no lunch unless you wanted to buy it. This should be more clear, so that I can bring my own lunch if there will be none provided."
Pros: "Friendly staff"
Cons: "Long delay"
Pros: "Nothing"
Cons: "My plans for travel were ruined because when I arrived at the airport for my flight I was told it was too late to check my bags, therefore I had to be placed on a later flight which then set off a chain reaction where I lost my rental car and missed various meetings at the event I was supposed to be at my final destination. The main issue was that when I purchased my ticket throughout Kayak YOU NEVER SPECIFIED THAT I SHOULD CHECK MY BAGS 45 MINUTES EARLY OR I WOULD LOOSE MY FLIGHT. YOUR LACK OF CLEAR INSTRUCTION SCREWED UP MY TRIP"
Pros: "Service"
Pros: "The attendants were friendly, knowledgeable, available. Flight was ahead of schedule."
Cons: "Seats uncomfortable and cramped. Cold inside plane. "Free" Wi-Fi free only after you downloaded app. Didn't know I needed to down load app before we took off so then I needed Wi-Fi to download app, which cost money. Noisy inside plane. Ear plugs would be nice."
Pros: "Boarding was easy, seat was good for economy."
Cons: "Although it was a short flight it was not great. We departed late having to run through Houston to our next termunal halfway across the airport. The flight was very hot, no cool air from the vents. Very turbulant...but no bad weather."
Pros: "The flight crew."
Cons: "Nothing"
Pros: "Drinks and snacks were good. Flight was on time."
Cons: "Flight crew was a little noisy."
Cons: "The arrogance and attitude from air crew, ground service staff to lounge receptionist was unreal."
Pros: "Polite, professional and kept us informed"
Cons: "Seats were uncomfortable"
Pros: "Everything was ok."
Pros: "The flight was very smooth and fast. Great crew!"
Cons: "The food is terrible! Why give out anything?"
Pros: "Entertainment via my device instead of one built into the seat."
Cons: "Far too little space between me and the seat in front of me, and that's before the person in front of me reclines their seat."
Cons: "Everything was horrible"
Pros: "It was on time and the staff was very friendly."
Cons: "I sat at the very back. :-("
Cons: "Delay without updates. Almost missed my connection. No TV."
Cons: "Price was not competitive"
Pros: "Space, cleanliness, boarding procedures"
Cons: "Snack options"
Pros: "Seats where comfortable in economy plus. And friendly staff"
Cons: "No snacks offered."
Pros: "My flight was early every time"
Cons: "All planes were booked fully"
Pros: "Good crew"
Cons: "Needs more leg room"
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: "Limited food and drinks options."
Pros: "Polite attendants!"
Cons: "Will definitely recommend to friends!"
Pros: "They were on time."
Cons: "They changed my seating choice."
Pros: "Flight was on time, crew was nice."
Cons: "Return trip had small planes"
Cons: "always delay!!"
Cons: "Seats were uncomfortable on this plane."
Pros: "When they couldn't do their job they turned us over to American Airlines."
Cons: "Cancelled our scheduled 1:30 pm flight from Austin to Chicago for "scheduled" maintainence. We drove 3 hours and spent almost $300 for a rental car to get to Dallas for the flight they put us on, which we couldn't make. We told the check in counter and they gave us boarding passes for an American flight that wouldn't leave until 10:00 pm but that we could try to get on stand by for an earlier flight. At this point we were already missing a concert we were trying to make in Chicago. Another $150 gone. We were lucky enough to make the 8:30 pm Dallas to Chicago with American and arrived at Ohare by 11:00 pm. All in all United wasted $300 on a rental car, $150 of concert tickets and 5 hours of paid time off I can't get back. Very disappointed. PS: they gave us food vouchers at the airport to apologize and they were already expired. They couldn't do one thing right."
Pros: "Good FA's, ahead of schedule,"
Pros: "Easy boarding for elderly slow passengers"
Cons: "Crowded seat space"
Cons: "Limited space"
Pros: "Everything went smoothly"
Cons: "Late and rude"
Pros: "The flight was quick and the flight attendant and crew was very kind and helpful."
Pros: "we landed on time"
Cons: "we took off late"
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: "The baggage fees are ridiculous and infuriating , but at least they try hard to communicate them."
Pros: "The flight was cheap and no real issues with it. I'm just looking for a cheap flight and no bags lost/delayed and I think Frontier is great! 10/10! :-)"
Cons: "Gummi Bears were out of stock on the plane but no big deal since I bought almond M&M's instead. There isn't too much leg room I guess and no TV or radio but considering the price is cheap that is to be expected. 10/10! :-)"
Pros: "Definitely can't beat the price, especially for a non-stop flight halfway across the country. I had plenty of room in my seat even with my backpack under the seat. The drink and snack selections are pretty decent."
Cons: "Delayed to start and it took a while for all the bags to be loaded. Once we arrived it took over an hour from the time we touched down to when our bags arrived at the baggage claim. Ended up finally leaving the airport an hour and a half after the time I was originally supposed to arrive."
Pros: "I got to where I wanted to go"
Cons: "I reached out to your customer support already about this, but haven't heard back. The departure time (for both legs of my trip) that was confirmed with my purchase from Kayak was incorrect and caused a major inconvenience. I'd very much like to receive a response. My email addres"
Pros: "Flights to and from where not pleasant I think the staff is very rude!! I think the women that did the announcements was inappropriate the way spoke she sounded like a phone sex operator. The flight attendant yelled at women who wanted water!!! The flight was delayed it was not pleasant"
Cons: "Everything"
Cons: "Smooth! Quick check in, smooth TSA and great flight!"
Pros: "Good service"
Cons: "Entertainment and better seats"
Pros: "Overall a quick flight crew was great always picking up trash it was clean."
Cons: "Only thing I hate and probably will never fly frontier again checking my bag was 50$ and the seats are absolutely uncomfortable I will pay a little more and fly with someone else everytime I fly because after bags it’s not worth it"
Pros: "Fast boarding, luggage arrived and undamaged"
Cons: "We were delayed almost 4 hours with no explanation"
Pros: "Boarding in zone one"
Cons: "2nd most hated airline behind Spirit - they charge extra for EVERYTHING!!! Seats are hard & don’t reclibe unless you pay $20 more. Will NEVER fly them again!!!!"
Pros: "Nothing"
Cons: "First flight of the day delayed with no notice Horrible Customer service Frontier is the worst!"
Pros: "Nothing very disappointed with Frontiers service"
Cons: "From Ontario to Austin we were charge $50 for each carry on luggage we 1 for me 1 for my husband total $100 charge From Austin to Ontario carry on luggage was free why?Im filling complained about the airline"
Pros: "It was a direct flight and the flight was on time."
Cons: "the baggage fees were outrageous and made this trip much more expensive than if I had gone with a better airline. There is no wifi on the plane and while you can buy everything else, there is no option to buy wifi which is the one thing I would have paid for. The staff was unfriendly at best and one was very rude and frantic. I will not be flying this airlines again!"
Pros: "Air hosts and hostesses"
Cons: "Need more leg space"
Cons: "Extreme turbulence. Crew didn’t do anything to inform or keep passenw"
Cons: "Flight delayed 2 hours! Seats don’t recline in coach!!"
Pros: "Easy check in and boarding"
Cons: "My neck pillow"
Pros: "Kind flight attendants for all!"
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: "Love the flight price!"
Cons: "As expected, everything else is a la carte."
Pros: "Price and on time"
Cons: "Hard seats that do not decline and lost my luggage"
Pros: "Drinks"
Cons: "Staff not letting us move with plenty of open seats !"
Pros: "Everything was very nice."
Cons: "crew was loud and unprofessional. they were talking the entire flight very loud and then talked about bad experiences they had in the past and their party lives.."
Pros: "Nothing was 2 hrs late"
Cons: "Was 2 hrs late"
Pros: "The flight itself was fine"
Cons: "I used to love frontier but now everything from baggage policies to checking in feel like a huge hassle"
Pros: "The fair was low and boarding was efficient."
Cons: "The booking process was terrible online. There’s a charge for refreshments, the tray table is tiny, the staff didn’t seem happy, the seats don’t recline at all, they charge for carry ons, no outlet to charge my device."
Pros: "crew"
Cons: "you should be arrested for those seats"
Pros: "Comfort seating is spacious."
Cons: "Doesn’t make sense to charge for water."
Cons: "I missed my flight because traffic made me late and no one was at the counter to check my bag and issue a boarding pass"
Pros: "I arrived safely, so that's pretty much all I care about."
Pros: "Crew, customer service was good and professional"
Cons: "No in flight entertainment or wifi access availability. This is a 3 hour flight. It should be something onboard"
Pros: "They got me from A --> B without any hassle and on time, aircraft was clean and reasonably comfortable."
Cons: "I object to paying for anything and everything, especially baggage and seats."
Pros: "The actual flight was good...Pilot took off and landed well. Informed passengers of upcoming turbulence (which wasn't to bad)."
Cons: "The flight attendant responsible for taking the orders in seats 22 DEF, totally ignored me. She didn't ask if I wanted to buy anything. Maybe because I'm black she assumed I couldn't afford to buy anything?!?! Anyway who cares?!? No one reads these reviews or will do anything about it!!"
Cons: "Flight cancelled"
Pros: "Fast boarding and friendly crew"
Cons: "Had to pay for all food and drinks"
Pros: "Didn't ask, and got $100 off next flight. They did good."
Cons: "Waiting for a gate and missing my transportation."
Pros: "The crew was friendly & the flight itself was cheap."
Cons: "They charged for, literally, everything (any/all checked bags/carry-ons except a purse, any/all food and drink). I'm sure they would have charged for the bathroom usage, if given the opportunity. The leg space was extremely minimal; you feel squished."
Pros: "Flight departed and arrived on time."
Cons: "Seats did not recline, we're very uncomfortable, little leg room, no free drinks or snacks.Frontier charges extra for everything now."
Pros: "Return flight crew was hilarious!! they made the delay in flight seem like nothing! They were awesome!"
Pros: "NOTHING."
Cons: "In my lifetime of flying across four continents and dozens of airlines, Frontier is by far the worst. I arrived at the airport an hour before departure. I arrived at the terminal 50 minutes+ before departure. I attempted to check in at the kiosk, but was told to go to the check-in desk. I stood in line at the the check-in desk, and arrived at the front of the line more than 40 minutes before scheduled departure, only to be told that the Frontier computer system would not allow check-in to print a boarding pass within 45 minutes of departure. This condition of service was mentioned nowhere in the materials for the flight purchase online, nor is it mentioned on the airline's website. The first notice in print anywhere is at the check-in desk, in an ad-hoc sign placed inside a plexiglass display at the check-in desk. The check-in desk workers very politely suggested I call corporate. I called corporate and got the run-around from three different Frontier employees before they hung up on me. I won't give Frontier a penny. I suggest that you don't, either."
Cons: "Seats are so uncomfortable. Then with all the extra fees this discounted fare cost more than if I would've went with my usual pic of airlines. Sat on the tarmac for for over 30 minutes after leaving late from Austin. We had originally expected at least an hour and a half layover and planned on getting some dinner in Denver. With The delay in leaving and sitting on the tarmac we only had about 20 minutes most to find something quick to eat"
Cons: "First: Don't get to the airport too early because they will not let you check in early. Second: The lack of customer service the counter personnel had was appalling. A customer that was running late was given the runaround and eventually missed her flight because the employees refused to help her."
Cons: "I missed my flight because they closed the check-in counter and hour before departure."
Pros: "Not too much"
Cons: "Compensation was very cheap considering the huge delay. Maybe if they had notified us hours in advance of the delay I could have stayed home until the later departure time, but instead they notified us AT boarding time of the delay, followed by news of yet MORE delay after waiting 3 hours. $100 coupon that expires in 90 days is suuuuper cheap considering... this flight should have been comped!"
Pros: "Quick, easy flight."
Cons: "N/A"
Pros: "Never friendly, always backed up, even if just 3 ppl in line. Seems person(always seems to only be 1) does not like her job! Just the Austin tx hub. Denver always smiling and flight attendants always happy. Love the price definitely!"
Pros: "The flight was full, but I had a row to myself, so that's always more comfortable. The flight attendants on this flight were outstanding. Friendly and very helpful. We left on time, and the pilot got us there a couple minutes early. That was all great."
Cons: "I did not know that you are charged for carryons. This was a big surprise, which wasn't great. If you check your bag, you're charged as well. For the round trip this will turn into $80 for me, which eats up all savings. If I'd known that would've been fine. I wasn't exactly thrilled when checking into the flight since the price was the main reason I chose the airline. And my carryons were a backpack (under the seat) and an over the shoulder bag half the size of a roll-on for a weekend trip. It also fit under a seat in front of me. (I know since my row was empty and the flight attendant suggested I put it there for easy access.)"
Cons: "Seats were tiny and so uncomfortable. Baggage costs are outrageous."
Pros: "Our flight was cancelled and there was no customer service to help us rebook - we are heading to the airport now."
Cons: "Lack of customer service"

Book cheap flights from Austin to Ontario

Recent round-trip flight deals

4/10Mon
2 stopsMultiple Airlines
13h 52mAUS-ONT
4/12Wed
1 stopMultiple Airlines
20h 25mONT-AUS
$147
4/10Mon
1 stopMultiple Airlines
17h 36mAUS-ONT
4/12Wed
1 stopMultiple Airlines
20h 25mONT-AUS
$165
4/12Wed
1 stopFrontier
17h 08mAUS-ONT
4/18Tue
1 stopFrontier
19h 29mONT-AUS
$168
5/5Fri
1 stopMultiple Airlines
12h 49mAUS-ONT
5/8Mon
1 stopMultiple Airlines
10h 36mONT-AUS
$171
4/10Mon
2 stopsMultiple Airlines
13h 52mAUS-ONT
4/12Wed
1 stopMultiple Airlines
20h 25mONT-AUS
$173
4/14Fri
1 stopMultiple Airlines
12h 59mAUS-ONT
4/17Mon
1 stopMultiple Airlines
10h 33mONT-AUS
$177
4/19Wed
1 stopFrontier
16h 18mAUS-ONT
4/23Sun
1 stopFrontier
12h 05mONT-AUS
$178
4/21Fri
1 stopFrontier
17h 08mAUS-ONT
4/23Sun
1 stopFrontier
12h 05mONT-AUS
$188
4/14Fri
2 stopsMultiple Airlines
13h 52mAUS-ONT
4/17Mon
1 stopMultiple Airlines
10h 33mONT-AUS
$197
4/14Fri
1 stopFrontier
17h 08mAUS-ONT
4/20Thu
1 stopFrontier
18h 32mONT-AUS
$198
5/5Fri
2 stopsMultiple Airlines
16h 23mAUS-ONT
5/8Mon
1 stopMultiple Airlines
10h 36mONT-AUS
$206
4/28Fri
1 stopFrontier
16h 42mAUS-ONT
5/7Sun
1 stopFrontier
11h 51mONT-AUS
$218
5/6Sat
1 stopDelta
7h 54mAUS-ONT
5/16Tue
1 stopDelta
5h 19mONT-AUS
$219
5/12Fri
1 stopDelta
6h 21mAUS-ONT
5/20Sat
1 stopDelta
5h 29mONT-AUS
$228
4/13Thu
1 stopDelta
5h 52mAUS-ONT
4/14Fri
1 stopDelta
5h 20mONT-AUS
$237
4/24Mon
1 stopFrontier
12h 01mAUS-ONT
4/30Sun
1 stopFrontier
12h 05mONT-AUS
$238
4/25Tue
1 stopUnited Airlines
5h 56mAUS-ONT
4/29Sat
1 stopUnited Airlines
5h 27mONT-AUS
$297
4/20Thu
1 stopAmerican Airlines
5h 29mAUS-ONT
4/25Tue
1 stopAmerican Airlines
5h 16mONT-AUS
$317
5/6Sat
1 stopUnited Airlines
6h 21mAUS-ONT
5/10Wed
1 stopUnited Airlines
5h 15mONT-AUS
$336
4/20Thu
1 stopAmerican Airlines
5h 15mAUS-ONT
4/24Mon
1 stopAmerican Airlines
6h 10mONT-AUS
$337

Search by stops

Search by airline

Search by price

Recent one-way flight & train deals

4/12Wed
1 stopMultiple Airlines
8h 06mAUS-ONT
$66
4/4Tue
1 stopMultiple Airlines
17h 15mAUS-ONT
$67
4/3Mon
1 stopFrontier
11h 29mAUS-ONT
$68
4/2Sun
1 stopMultiple Airlines
26h 53mAUS-ONT
$71
4/2Sun
1 stopMultiple Airlines
25h 47mAUS-ONT
$79
4/16Sun
1 stopMultiple Airlines
19h 24mAUS-ONT
$85
4/12Wed
1 stopFrontier
17h 08mAUS-ONT
$90
4/21Fri
1 stopFrontier
17h 08mAUS-ONT
$97
4/22Sat
1 stopFrontier
17h 24mAUS-ONT
$100
4/4Tue
2 stopsMultiple Airlines
12h 13mAUS-ONT
$105
4/22Sat
1 stopDelta
7h 54mAUS-ONT
$110
4/1Sat
1 stopMultiple Airlines
16h 21mAUS-ONT
$116
4/20Thu
1 stopDelta
5h 51mAUS-ONT
$119
5/12Fri
1 stopFrontier
6h 24mAUS-ONT
$124
4/1Sat
nonstopAmtrak
35h 24m9US-NA8
$129
4/1Sat
nonstopAmtrak
35h 24m9US-NA8
$129
4/25Tue
1 stopUnited Airlines
5h 56mAUS-ONT
$149
5/30Tue
1 stopAmerican Airlines
6h 15mAUS-ONT
$155
4/24Mon
1 stopUnited Airlines
17h 26mAUS-ONT
$158
4/24Mon
1 stopAmerican Airlines
5h 51mAUS-ONT
$169

Search by stops

Search by airline

Search by train company

Search by price

Austin - Ontario Flights

Departure:

Austin (AUS)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Austin

Cabin classes:

$1,151
$764
$94

Browse origins:

$139

Browse destinations: