Find cheap flights from Washington Dulles Airport to Ontario

IAD - ONT

Find cheap flights from Washington Dulles Airport to Ontario

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Round-trip
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Washington (IAD)
Ontario
Fri 4/9
Fri 4/16
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Good to know

Low season

AugustBest time to beat the crowds with an average 33% drop in price.

High season

DecemberMost popular time to fly with an average 49% increase in price.

Average price round-trip

$300(avg. price over the last 2 weeks)

Good deal round-trip

$176or less

Good deal one-way

$104or less

When to book flights from Washington Dulles Airport to Ontario

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

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $104 or less one-way and $176 or less round-trip.
  • The cheapest flight from Washington Dulles Airport to Ontario was found 31 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 11% 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 Washington Dulles Airport to Ontario flights

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Top 5 airlines serving Washington Dulles Intl to Ontario

Scores according to KAYAK customer reviews

8.3
Alaska Airlines
Overall score based on 29,312 reviews
8.5
Boarding
8.3
Comfort
8.8
Crew
7.9
Entertainment
7.9
Food
Airline reviews

Pros: "Alaska airlines staff from checking in to flying set the bar in service standards. I have never been disappointed with their professionalism and will continue to use their services exclusively when I can."
Cons: "Nothing."

Pros: "Crew. Service."

Pros: "The flight attendant was so amazing and observant that she noticed myself and classmates all wearing our alma maters sweatshirt and gave us the loveliest a shout out!! We were headed for our college reunion and had unintentionally been on the same flight. That was so much fun!!"
Cons: "Free headphones"

Cons: "The pkane changed departure times, so i was stuck in airport until 440 pm and i had to pay $60, to change ticket."

Pros: "Loved Japan Airlines"

Cons: "My 3 suitcases were missing"

Cons: "More plentiful food selections? Everything served had dairy which I can’t do."

Pros: "Short boarding, extra seat, arrived early"
Cons: "Nothing"

Cons: "5 gate changes."

Pros: "The lady WHO assisted US at the Alaska Airline kiosk was very Helpful, she made IT easier for US to check in. There were a lot OF AirPort employers assisting us Go thru the scanners, IT was a breeze, IAD was very relaxingThank you very much"

Pros: "There was plenty of legroom, cabin crew came often for drinks, snacks and trash, power outlets easy to access (below tray table)."

Pros: "Every aspect of the trip was above our expectations, comfortable seats, delightful staff, good food and on time service."

Pros: "Bathrooms were relatively clean"
Cons: "Crew was rude and very unhelpful. Made smart little comments to many passengers."

Cons: "Sony handycam and cables were stolen out of my carry-on suitcase during TSA screening. on Sept. 29th, about 8:00 - 8:30 time frame. This was to be used for my Dad's full honors funeral service at Arlington Cemetery on Oct. 1. I had gone through Alaska Airline check in, then to TSA screening where the crime took place."

Pros: "Smooth no delay"
Cons: "Na"

Pros: "Awesome"
Cons: "N/A"

Pros: "Very friendly crew. On time flight. New airplanes. Free movies."
Cons: "Please provide more meal options available for purchse."

Cons: "N/a"

Pros: "Comfortable seating, tv screens in seat backs."
Cons: "Like when captain points out landmarks every now and then but this crew did not. Minor complaint if I had to have 1."

Cons: "Very good"

Pros: "Not a lot"
Cons: "The crew was rude, they weren’t helpful. And they were talking bad about another customer infront if other customers"

Pros: "Even the baggage was excellent. My bag was on the belt before I got there"

Pros: "Room on the plane so I could spread out a bit-not filled in my room. Free Gogo WiFi ."
Cons: "Everything was great"

Cons: "The new TV program choices. I miss the Direct TV live program choices. It made the flights go so much faster! The few episode choices was a huge disappointment. This was one of the things that made Virgin America flights special!"

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."

Pros: "New airplane, friendly and engaging staff"
Cons: "None"

Pros: "Accommodated my disabled mother through the whole flying process. Thank you"

Pros: "I would like to possibly see some better food options maybe for people who can not consume dairy. With the many different cheese platters, I was very uninterested. I had an early flight and thought I'd be able to eat something with a sort of substance. I was quite disappointed, I guess I'll have to be the annoying customer who brings chipotle on the plane next time."

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."

Cons: "It shouldn't take almost until the end of the flight to have a meal tray cleared. First class isn't worth the additional cost when flying on Alaska. Save your money."

Pros: "We missed our 8:10am filght out. After the pushing off of the plane, a very kind steward assisted us. Her co-worker was not so kind."

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

Pros: "Love small planes. Lots of legroom and you can see everything."

Pros: "New equipment, excellent staff and good inflight entertainment."
Cons: "Boarding procedures seem old fashioned and inefficient."

Pros: "Friendly staff"

Pros: "The space, seat, cleanliness,friendly pilot, airport assistance, tsa wh helped me approx 4::30 pm at Ontario Airport but not the snotty one who tried to take my water bottle after flight delayed teo hours & had special permission to go back thru security to eat. Needed water bottle because diabetic & recovering from pneumania. Did not like the patting down because I had a Kotex pad on. Wierd. Love flying Alaska Air."

Pros: "Nice flight attendants, and the flight on the way home was not overbooked, which was lovely!"
Cons: "One flight attendant told me not to pack my bag so much if I wanted to take it on the plane, and I had to check it at the gate. Once on board, there were bigger suitcases than mine on board. I was happy to do what they said, but it would be nice if they were more consistent about the bag sizes. I didn't have this problem on the way back to Seattle though."

Pros: "Free Movie selection; plag in devices"
Cons: "Nothing. Everything was great"

Cons: "Flight was delayed."

Pros: "Was okay"

Pros: "It was all good but I thought that if I flew 1st class that I would have been told that I had use of the lounge..which no one did. So I sat with the "others" waiting at the gate."
Cons: "On my return ( still flying 1st class ) I had a 15 hour layover. I wanted to use the lounge but was denied access since my flight wouldn't leave until the next day. In my opinion, if someone wants to fork out the price to fly first class.. they should waive THAT policy. So, I spent the night with all 'the others' hating Alaska and it's short sighted policy. I could have used the lounge for 1.30 hrs the next day..if I wasn't so busy hating them."

Cons: "The short seat belts"

Pros: "This is the 8th flight I've had with Alaska and I only have one complaint to be honest."
Cons: "Both of my flights stated we would board by a certain time but instead we boarded ten minutes before our departure time. This in turn made us late."

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."

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)"

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: "Better snacks"

Pros: "Sanitized, open middle seats, comfortable"
Cons: "We were stuck on the tarmac for 40+ minutes due to our gate being blocked by another plane. We almost missed our connection and had to run through the airport with our luggage and the staff at our second gate yelling “hurry up” at us like it was our fault."

Pros: "Crew from Washington to Cancún were extremely rude"
Cons: "Smile"

Cons: "Appreciate the communication from pilot when on tarmac"

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: "The crew was very attentive and had great personality. They anticipated any needs we had."

Cons: "The website could work for starters"

Pros: "Quickly moving through the airport."
Cons: "Take out old planes. It was really run down."

Pros: "The plane was nice"
Cons: "I’m still sitting in Minneapolis so I would have liked to be at my destination. And I had to pay for the overnight accommodations."

Pros: "Entertainment was awesome. Although airlines are stingy with snacks, Delta had a good overall selection and very generous."
Cons: "Something that cant be changed overnight, however, there should be a little more Aisle space for folks pass through as my shoulder was getting beat up after every passing person and cart."

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 friendly."
Cons: "Wish the seat was more comfortable. Landing was jittery and bumpy."

Pros: "The flight attendant from IAD to MSP called Bernadette was wonderful!"

Cons: "Delayed"

Pros: "Super comfortable seats. Lots of movie options."
Cons: "Food was not very good"

Pros: "Flight was smooth, arrived early..crew was prompt and courteous."

Pros: "Crew and entertainment options were great."
Cons: "Cabin was very loud, with jet engine noise. Could not block it out. Seats were not comfortable."

Pros: "Standard Air France flight. My wife and I like the Airbus 380."
Cons: "The flight left two hours late. Apparently this happens a lot with this flight these days because it's an Airbus 380 coming from Paris to Dulles and turning around. The incoming flight was two hours late, so the departure was late. Our arrival in Paris was late. We made the flight, but our luggage didn't. Our return flight from Paris to Dulles was half an hour late because of people from connecting flights. We arrived about 30 minutes late, but no big deal (unless you had a connection)"

Pros: "Fly attenden alwas with a beautiful smile"

Pros: "Nothing particularly stands out. I did arrive safely."
Cons: "First class did not come with lounge access? Drinks were not cold. Bathrooms were falling apart and came with a disgusting odor. Time to retire these aircrafts."

Pros: "Courteous and professional staff"

Pros: "Flight attendants were nice based on the situations beyond their control."
Cons: "Flight was delayed for about three hours, due to mechanical issues with the second engine not starting. We sat on the the plane for over an hour and half. Some people that missed their connection flights were offered hotel stay. Others that had no connection flight was not offered anything for the several hours of delay that occurred."

Cons: "Tv"

Pros: "The chekc in person was very helpful."
Cons: "The plane was too hot and the pilot did not accommodate the passengers request. More than just me made the same request."

Pros: "Flight was on time; captain was clear and funny."

Pros: "That I landed safely"
Cons: "1st class was horrible."

Cons: "I have traveled with my luggage plenty of times through airports and the flight from washington to jacksonville, my luggage came back to me cracked and broken. I was surprised that Delta handling was worse than any of the cheaper flights I normally take and will not be checking any baggage with Delta again."

Pros: "Getting home in one piece"
Cons: "Why do airlines schedule 2 flights for the exact same time in the exact same gate? Just to watch passengers squeeze in like cattle??"

Cons: "1 hour delay, no explanation, no weather problems, late for my meeting in Houston."

Pros: "Great and friendly crew"
Cons: "baggage rules, check in with baggage, change fee for flight when it was not customers issue that caused the 5 min delay! Unable to reach reservation desk on line or via phone (neither was the gate agent)"

Cons: "Seeing as I’m still waiting for my flight, more than five hours later I am not inclined to rank it highly. This airport is an embarrassment and I will try my best to never fly Delta again. Weather is no excuse for this."

Pros: "My flight was canceled but Delta rebooked me on a flight leaving at about the same time as my original flight, which arrived just a little later than originally anticipated"
Cons: "My original flight was canceled"

Pros: "Staff, Ease of boarding"
Cons: "Bring back in flight meals, please"

Cons: "Delayed two hours"

Pros: "Crew was nice. Flight very smooth"
Cons: "We had to get seats at boarding because of the flight delay. She offered us two seats in the back. I knew they don't pushback so I said no. She had given the woman ahead of me two seats in comfort plus. Did not offer that and was rude. There were at least a few empty seats in that area. As a courtesy to us having 1)been delayed in Costa Rica. And then 2) a long wait for the connecting flight in Atlanta it would have been reasonable to offer those seats. Which remained empty"

Pros: "Allowed Pre boarding of infant (which American no longer does), complimentary food, entertainment on domestic flight, and friendly staff. Delta is upping the game!"

Pros: "Got to my placs"
Cons: "Lol put the two fattest people next to each other"

Pros: "The fact that there were no snakes on this plane :-)"
Cons: "Same issue... there were no snakes on the plane :-/"

Pros: "Everything"
Cons: "Nothing. Delta is the best airline in North America"

Pros: "Flight attendants and cookies. That's it."
Cons: "We left DC late because of Delta's inefficient boarding process. We landed in Atlanta late. Our flight to Sioux Falls left early, without us. My pregnant wife and I made it to the gate 4 minutes before the scheduled departure and they told us the plane was already gone and there was no way for us to get on the plane. Our bags did make it to Sioux Falls, so my wife didn't have her prenatal vitamins, , we had no clean clothes and we were forced to spend the night in Atlanta. The saddest part of yet another terrible experience with Delta was that they offered us a "discounted" room at a terrible Howard Johnson for $72. I looked online and the same hotel was $65 to book on Kayak. So basically Delta was trying to scam us after they screwed us. Thanks Delta! Instead we paid $200+ to stay at an airport hotel. Every time I fly Delta I regret it, yet occasionally I get forced to take their awful airline to get somewhere I need to go. It never fails to add another bad Delta experience to my long list of failings from this SAD!!! airline."

Pros: "Timely flights , plenty of good food and disciplined serving Amsterdam: good layover Modern plane Better entertainment system Good flight to travel to India , Mumbai ."
Cons: "Windows weren't clean for stargazing"

Cons: "There delay"

Pros: "The crews were very friendly and everything went as planned. It was a nice flight."

Cons: "I didnt like that my flight was canceled and rebooked for no reason. This created me big problem in Athens that they couldnt find my ticket in delta. Also I didnt like that i had to stand and wait for 3 hours in the line because my flight was canceled but no one could let us know if there gonna be any flights within the day. I slept in the airport because i couldnt find a hotel to spend the night close to the airport. They were all full and i had no time to find one since I was waiting there for 3 hours with no informational. I slept on the floor and delta didnt even offer us a blanket. That was my worst trip ever."

Pros: "The flight was smooth and the food selection was surprising delicious. The crew was very attentive."
Cons: "The leg room was much less than the last time I flew Virgin (booked via Delta) and made for an uncomfortable trip. Could not sleep as a result. If you're tall like me you'll need to book a higher seating category."

Pros: "Everything was great"
Cons: "Nothing everything was fine"

Cons: "paying extra for leg room and checked bags"

Pros: "COURTESY"

Pros: "We were kept informed about the delays. I was was automatically rebooked on connecting flights because of the delays."

Pros: "Nothing"
Cons: "Being scammed by the Chinese, China Southern"

Pros: "Seats were comfortable didn’t have to pay extra for my personal day crew was polite"

Pros: "The crew was super nice, they offer me to change my seat to fly with my sister."
Cons: "The pilot"

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."

Pros: "787 seats have better legroom & recliner"
Cons: "Vegetarian food needs lot of improvement"

Cons: "My tray table was dirty. It had crumbs on it. The flight was on time which was awesome."

Cons: "The seats are extremely restrictive and in a aisle seat I had the gentleman sitting next to me with thighs touching and attendants brushing by me as I squished to left to avoid contact with him. Entertainment screen between center seat and window seat so I just didn't even try to look at it and mostly just leaned forward to have a little space. Also another inch or 2 was taken by person in front of me putting their seat back. With such restrictive space why is this even possible??? Flying has become ridiculous and I try not to as much as I can."

Cons: "30 min late"

Pros: "Plane was newer than I expected. Had tv monitors on the back of seat headrests."
Cons: "The flight was delayed an hour because the flight crew was late."

Cons: "I'm expecting more from AA. We were delayed for 2.5 hr since we didn't have a pilot !!!!!"

Cons: "Speaker volume was too high."

Pros: "Shory"

Pros: "miserable. Flight."

Pros: "Short flight."

Cons: "No concerns What I expected for a quick flight"

Cons: "N/A"

Pros: "great trip and crew"

Pros: "great trip and crew"

Pros: "On time"
Cons: "Tiny seats, no snack or napkin with the drink. Noise in back."

Cons: "Too bad you paid$$$$ and they give you pretzels"

Cons: "Small, cramped seating"

Pros: "The flight was on time"
Cons: "Tiny bathrooms"

Pros: "Nothing"
Cons: "spending $600 on a one way flight with you today has been the worst experience and rip off ever! Delayed in Hartford 6 hours. Changed my layover flight in Dallas. Now Dallas delayed 1 hour."

Cons: "Flight was delayed"

Pros: "The flight crew was very friendly"
Cons: "I wish the flight was longer. :)"

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

Cons: "The flight was delayed an hour (which wound up being a 3.5 hour delay in total, with all the continual delays that pursued afterwards(, which would have made us miss our connecting flight back to our home destination. We switched flights in order to make it home at a decent hour and not spend our entire day and night in an airport. We arrived home and they did not transfer two of our three checked bags to our flight, thus making it highly inconvenient upon our arrival home with no luggage."

Cons: "The male flight attendant was incredibly rude, kept hitting my arms with his body with zero apologies. No manners when taking food and drink orders. Did not seem like he liked his job and in a customer service atmosphere this was extremely disappointing."

Pros: "Excellent. on Time. Friendly crew"

Cons: "Poor seating and lost my bag."

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

Cons: "Seat in front of me was broken in the reclined position so I had no leg room."

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

Cons: "Plane had no Per-seat entertainment system."

Pros: "Biscoff!"
Cons: "lack of ent. options"

Pros: "Boarding process and flight crew were just fine - nothing excellent, just average. The plane was an older model, nothing special. We arrived 10 minutes early but then had to wait 20 minutes for a gate."
Cons: "They had no alcohol and no entertainment on a Transcontinental flight from IAD to LAX. Also once we landed we had to wait 20 for a gate assignment."

Pros: "entertainment displays on the back of every seat headrest. Nice room on Main Cabin Xtra, even with someone in the middle seat."
Cons: "1 of the flight attendants was pushy(older caucasian lady)"

Pros: "Seat was comfortable"
Cons: "Gate agent told me my bag would fit under seat but when I got on board found it would not and had to do gate check."

Pros: "Flight got to gate 15 earlier than scheduled."
Cons: "But took one hour to get gate checked bag, which was mixed in with checked bags at bagged claim."

Pros: "Comfy seats, great service, was a smooth ride"
Cons: "my entertainment system wasnt working, the headphone jack was not working at all."

Pros: "Boarding the plane from the back first saved longer queues. Unfortunately people cheat and the boarding officers don't send them back to the right queue. Toilets were clean. Staff excellent. I was glad all my flights were stuffed to the gunnels. Presumably that is best for the environment rather than lots of planes with fewer passengers in each."
Cons: "Passport control with new computer ID checks was fast. Baggage was slow coming. I booked through Netflights and they didn't book me a good seat. If I could have changed it myself they should have told me. On the way to Tampa on 3rd March I couldn't check in within 24 hours and had to wait half an hour while they changed our plane. BA used to do short science programmes which I loved. Shame these have finished."

Pros: "The flight attendant lady from 1st class/Business held my suit jacket for me to grab on the way out. Simple thing, but very thoughtful and kind. Love it."
Cons: "The negatives are puny compared to what made me happy in this trip. Thanks AA! Please thank that nice lady for me!"

Pros: "Friendly, helpful flight attendants. Flight left and arrived on time, despite being completely full (asking for volunteers to bump). Offered to gate-check our carry-on bags for free to alleviate crowding of overhead bins was fine for us since we already had checked baggage."
Cons: "If you don't pay for the premium seats, the legroom is pretty tight. I'm only 5'8" and I felt it -- if you're 6'+ you better pay for it. This aircraft had screens, but not individual ones so you're stuck watching whatever sitcom replay they pick, although there is a moderate selection of other music. I've been on a newer aircraft with the in-seat power and interactive screens so I know how good it can be, so this was a little disappointing."

Pros: "I did like sitting on the left side of the plane. There's a little more room. I feel it's horrible how the airline charges so much and cram so many seats in one air craft. Making it a miserable flight."
Cons: "See above"

Cons: "no food"

Pros: "The flight was on time. It was serviced well by very friendly flight attendants. I enjoyed it very much."

Pros: "The crew was very helpful and kind."
Cons: "Our flight was delayed over an hour and we had a connecting flight to Vegas that we were worried we were going to miss."

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."

Pros: "Nothing"
Cons: "We sat on the runway for more than an hour."

Pros: "As expected."
Cons: "N/A"

Pros: "Nothing"

Cons: "The landing was rough!"

Pros: "Snack delicious"

Pros: "No Lufthansa?!"
Cons: "No Lufthansa?!"

Pros: "I felt comfortable. Staff was great."
Cons: "The cracker and cheese box. The snack wasn't worth the money."

Pros: "Easy to board and check in, good price"
Cons: "It was extra to check luggage"

Pros: "Everything"
Cons: "N/a"

Pros: "Everything"
Cons: "NA"

Pros: "Boarding and de-boarding seemed quicker than other flights on other airlines"
Cons: "Noisy/ squeaky seat"

Pros: "Thank you for making this connection available from charlottesville to dulles. It beat driving! Everyone was helpful"

Cons: "The lack of breakfast options. Lack of room."

Pros: "This plane was smaller so I got to sit by myself so it was more comfortable for me"
Cons: "Lack of drinks/ comp snacks"

Pros: "I had to get my luggage in Frankfurt and was almost denied access to it in the airport because the airlines don't have agreement together."
Cons: "Luggage transfer"

Pros: "Everything was fine"
Cons: "Na"

Pros: "Fine. Wish my earlier one wasn't so delayed."

Pros: "On time"
Cons: "The boarding process Boarding should start from the rear rows to the front irrespective of what group shows on your ticket.some ended up with no storage space as they are in group 4 or 5"

Pros: "It's seems like no one cares about passengers in this airline.... Rude services"

Cons: "we had to pay to watch any channel."

Pros: "The upgrade it made the all the difference in the world"
Cons: "Would not change a thing"

Cons: "EVERYTHING WAS EXCELLENT"

Pros: "Good"

Pros: "Good trip"
Cons: "Nothing"

Pros: "Liked the upgrade to first class"

Cons: "Was asked to pay $25 extra for my luggage. That should have been disclosed up front on the ticket. Not happy"

Cons: "N/a"

Cons: "When I boarded the plane, I noticed crumbs and grease marks on my seat and crackers all over the floor at my feet. Rather than clean my area, the stewardess handed me wet wipes."

Cons: "Bad"

Cons: "Long wait. Not communication between employees. Poor customer. Service"

Cons: "Constant updates, saying more delays"

Pros: "Everything"

Cons: "not offered any break on food or beverage, or wifi."

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."

Pros: "For all everything was OK"

Cons: "Everything was good"

Cons: "No TV"

Pros: "Everything"
Cons: "N/A"

Pros: "On time."
Cons: "See first leg response above"

Pros: "Cookies were very tasty."
Cons: "Seat would not recline."

Cons: "Late departure."

Pros: "Very poor service"

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

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

Cons: "Service"

Pros: "I loved how quickly we departed and arrived at each destination!"
Cons: "The boarding process was terrible. People forgetting to even stand in line for their boarding groups getting to cut ahead of those whose group is currently in the process of boarding. That should not be allowed. It's rude and disrespectful to other passengers/customers."

Cons: "Maintenance delays and rerouting caused me to miss my reserved ground transit in LA... United claimed on the phone I would be reimbursed for a taxi, but changed their mind when I sent them a receipt a few days later."

Pros: "same comments as above"
Cons: "same comments as above"

Cons: "Tight aisle"

Pros: "Professional, friendly service."
Cons: "Nothing"

Pros: "Fast, friendly, on time"
Cons: "none"

Pros: "Yes it was. People were very nice"

Cons: "Very nice. Smooth. Fast"

Pros: "Yes"
Cons: "Thanks , perfect , not a thing"

Pros: "n/a"
Cons: "n/a"

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: "Liked everything just wanted a better seating choice"
Cons: "The middle seat"

Pros: "Nothing."

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"

Cons: "Lots of miscommunication and no help with assisting passengers off plane to rebook Austin to San Diego flight"

Pros: "Better plane then the one going to Washington DC"
Cons: "I sat separate from my family members."

Pros: "Comfort seating is spacious."
Cons: "Doesn’t make sense to charge for water."

Pros: "Nada"
Cons: "Everything"

Pros: "Cheap flight"
Cons: "Bag fee"

Cons: "Terrible service, unprofessional, impractical and unreasonable airline that should never be suggested."

Cons: "I'd rather get bumped off a United flight and sleep on the floor airport than fly Frontier. Do yourself the favor and spend the extra money. You'll at least get a free carry on, and be able to recline your seat."

Pros: "I país for seat 25...$12."
Cons: "I would not FL y any more for Frontier"

Cons: "The credit card sales pitch. Too long and loud. People were trying to sleep and were rudely woken up and subjected to that !"

Pros: "Comfort"
Cons: "Don't have food free inside the fly"

Pros: "Overall service"

Cons: "The check in was soooo slow, the person who was helping did not know what she was doing."

Pros: "Poor quality airline. Will never ride the airline again."
Cons: "Frontier service."

Pros: "Price of fare."
Cons: "On Frontier, you get what you pay for, bare bones transportation from point A to point B. Seat positions were fixed, and Frontier have clearly put a great deal of effort into cramming as many people as possible into the aircraft. Food and drink, any did and drink, were available only for purchase. There 's no entertainment, even for purchase."

Pros: "When all the add ons are factored it is no cheaper than delta."

Pros: "Nothing good, bad baggage handling experience, miss commitment. Overall it was pretty bad."

Pros: "Frontier has the best leg room that I have encountered flying. Our flight however had a transfer in Orlando from dc to San Diego that was not clear on our inteniary or tickets which we only found out when we boarded in dc! Otherwise frontier offers lower fares but seats don't recline and sleeping on cross country flights are rough"

Pros: "Picking out seat"
Cons: "No free snacks"

Pros: "nothing"
Cons: "I booked this ticket about a month ago. I was traveling to va to drive in a car race. I rented a race car, had it delivered to the track, payed my entry fee and just had to show up at the race track to drive. Total for the weekend was about 3k$ The day of my flight around 3 in the afternoon, I attempted to check into my flight. There seemed to be something wrong with frontiers website as I kept getting a red error message. I made about 15 attempts from two different computers. I kept getting an error. There was clearly a problem on Frontiers end. I would have to check in at the airport. I do not check luggage and being a red eye, I arrived at the Frontier kiosk an hour before my flight (plenty of time). I made multiple failed attempts to print my boarding pass before waiting in line. After the wait in line, the very unfriendly Frontier lady scolded me for not arriving earlier and said I would have to wait to speak with the manager as she could not help me. After another wait the manager told me that the flight was oversold and the tickets were given out based on when people checked in and all he could do was put me on the same flight tomorrow. Which was pointless because my race was at 9am the next day. I am not sure how this is even legal? It certainly is not fair, I will never book a flight on frontier again, I may not even use kayak. I am out thousands of dollars, and very mad about everything to do with this."

Pros: "The pilot, because we did land"
Cons: "Hiddend fees for everything. (2 carry on cost $120 round trip..fyi) Cancelled flight 6 days prior, no other options and had to change airports to fly the same day to keep the planned events booked months earlier. Lied to by customer service on cancellation and Frontier took no responsibility for their ridiculous actions and could care less we were stranded in a different state with no way to get back...(without switching airports or book using a different airline at a $500+ seat price.) Just awful and will go out of my way for friends and family to NEVER fly frontier again."

Cons: "40 minutes and still no bags"

Cons: "this company does not respect the customer. For both flights delay of more than 6 hours."

Cons: "2 hours on tarmac. Yuck."

Pros: "Nothing"
Cons: "That we were not treatiwith respect, we still had time to check in and the front desk man said that he could print out boarding passes but that we could not take our bag with us, we suggested he sent it through another plane later in the day but he refused and this time he decided not to print our passes."

Pros: "I'd rather take a shower at auschwitz than fly frontier again"
Cons: "Everything. Literally everything"

Pros: "I didn't die."
Cons: "Terrible service. Massive delays. Will not use this airline again."

Pros: "Nothing"
Cons: "Everything"

Pros: "It boarded on time"
Cons: "-Little table to eat. -Seats and rows way too narrow -They charge for carry ons, snacks, and probably air. It was ridiculous how I was nickled and dimes. -The wait to drop the bags was excessive >25 minutes at IAD. This is sad being that I paid ahead of time."

Cons: "No entertainment and you have to pay for a soda. Really"

Pros: "That we eventually arrived"
Cons: "That we arrived 3.5 hours after we were supposed to"

Pros: "N/a"
Cons: "N/a"

Pros: "Nothing!"
Cons: "They charge $40 for carry on luggage!!? They don't tell you before only when you are ready to board!!!"

Cons: "There were too many added costs. In the end it is more expensive to fly Frontier than other airlines. The pricing is deceiving."

Pros: "I like lower charges on changing bags"

Cons: "Luggage took 45 minutes to arrive"

Cons: "It was unfair to Charged us $90 for the carry on"

Pros: "Arrived early"

Pros: "I liked that it was boarding was fast and courteous and professional."
Cons: "that I had to pay $40.00 for a small bag that I had to check it in."

Pros: "Got us there ahead of schedule."
Cons: "Pack them in like sardines."

Cons: "I did not like the fact that I was not informed from the very beginning that it was an "ala cart flight" If I had known that I had to pay for my first luggage and pay for my seat (if I wanted a choice of a window seat) I would have gone with another more expensive airline. I have a couple cards that allow free baggage and other perks, but I was not using those, to save my sister money since she was paying for the flight.It started at $278 round trip and ended costing me $390. I first chose a seat ($12.) near the back, and after a very stiff ride up to DC, I decided to upgrade to the $50. seat in the front for the ride back, to Orlando, thinking it had to be better and recline. It did not. Needless to say, I will not fly Frontier again."

Pros: "Super easy and simple."

Cons: "No one told us that the setbacks on Frontier do not recline!"

Read more about Alaska Airlines
COVID-19 information

Safety measures for airlines flying from Washington Dulles Airport to Ontario

Airlines flying from Washington Dulles Airport 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 on flights from Washington Dulles Airport to Ontario

Mandatory masks

Masks required on board, masks provided on flights from Washington Dulles Airport to Ontario

Social distancing seating

Middle seats unavailable to book on flights from Washington Dulles Airport to Ontario

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Washington Dulles Airport to Ontario

Book cheap flights from Washington Dulles Airport to Ontario

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