C$ 150 Find Cheap Flights from Washington to Ontario

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Low seasonJanuary
High seasonAugust
Cheapest flightC$ 150
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from Seattle to Toronto Pearson Airport

FAQs for booking flights from Washington to Ontario

  • How does KAYAK find such low prices on flights from Washington to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Ontario?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ontario is Toronto Pearson Intl Airport (YYZ), with an average flight price of C$ 398.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Thursday when round-trip tickets can be as cheap as C$ 552. On the other hand, the most expensive day to fly is Tuesday, when round-trip prices are C$ 1,348 on average.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost C$ 185 on average. Morning departures are around 94% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 690.

  • What is the cheapest flight to Ontario?

    The cheapest ticket to Ontario from Washington found in the last 72 hours was to Toronto Pearson Intl Airport, at C$ 318 round-trip. The most popular route is Seattle (SEA) to Toronto Pearson Intl Airport (YYZ) and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 318.

  • What is the cheapest month to fly from Washington to Ontario?

    The cheapest month for flights from Washington to Ontario is September, when tickets cost C$ 347 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is C$ 993 and C$ 863 respectively.

  • How far in advance should I book a flight from Washington to Ontario?

    To get a below-average price on the flight from Washington to Ontario, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

  • How long is the flight to Ontario?

    An average direct flight from Washington to Ontario takes 11h 30m, covering a distance of 5336 km. The shortest route is Seattle (SEA) to Toronto Pearson Intl Airport (YYZ) with an average flight time of 4h 39m.

  • What are the most popular destinations in Ontario?

    Based on KAYAK flight searches, the most popular destination is Toronto (96% of total searches to Ontario). The next most popular destinations are Ottawa (3%) and Sault Ste Marie (1%). Searches for flights to London (0%) are also popular.

Reviews of the top 4 airlines serving from Washington to Ontario

 
Need help choosing which airline to fly with from Washington to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
7.1Entertainment
8.1Boarding
7.1Food
8.5Crew
Airline reviews

It was very good and comfortable, Crew was also great

10.0 ExcellentAnonymous, Jun 2025SEA - BUR
Read more Alaska Airlines reviews

It was very good and comfortable, Crew was also great

The flight was delayed almost an hour. No wifi on flight.

Good experience, although it was a little cramped being a tall person. Otherwise everything went smoothly and professionally though

Delay of more than 3 hours I didnt recieve neither a voucher for food Attention disaster

Flight was 1:20 later than booked & I never received notice. At airport way too early. Couldn’t hear announcements on PA system. Crew fine. Retrieving luggage fine. Overall experience not good.

I will never take a red-eye flight again. Crying babies. Complete full flight. Could not get comfortable. Not fun.

Flight was OK, landing not good, boarding was ridiculous. Flight was to load at gate n11 25 minutes before boarding time it was changed to s5 which is 3 tram connections on the other side of the airport, I'm handicapped and even getting a sky cap took 10 minutes needless to say just made it to boarding only because it was delayed. I did learn a valuable lesson don't show up for flight 2 hours early.

Only issue was the 2 hr delay after an 8 hr layover. Very long day.

Same crew flew with us from Palm Springs to Bellingham, so they were great! Friendly and kind from start to finish. Great experience!

Flight was very warm. It felt like there was no working AC.

Flight was actually on Air Canada. The flight itself was fine. Nothing special. Food was pretty pathetic except for cookies. They offered plenty of food and drinks but just wasn't very good. Even for airline food.

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Delay and keep changing gates. I have to run around from B to C then to E.

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

My suitcase was completed destroyed. The top part is broken and unusable now.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

We were delayed in Toronto on the tarmac for THREE hours with no clear indication as to why except that it was not a safety hazard. Pilot did apologize more than once but even he was unable to explain why exactly we were delayed. I overheard the stewards saying that the captain was very frustrated with the situation as well because he was not able to explain why except it had something to do with water supply or system on the aircraft and now we needed to wait for an engineer to approve the aircraft for flight. It was very frustrating and distressing as a passenger and we should have been given complimentary meals at the very least.

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

The flight attendants were super! They created a cosy and warm flight atmosphere!

West Jet flight was cancelled and I was not notified. I found out when I tried to check in on-line. Spent 4 hours on the phone with West Jet and Just Fly trying to figure what happened.

It was good, flight was on time, boarding was smooth and done in zones, food was good too but there was no form of entertainment. Luggage’s were intact. So an overall good flight

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

No access to any entertainment No food other than a cookie or pretzels even tho flight was over the supper hour Seats very close together and very little leg room Staff was very good

The cancelation of my flight from Toronto to Edmonton without any solution given to me for my next flight. Very poor connection from Toronto to Edmonton

Too squished in seats. I'm 110 lbs and 5'6....can't imagine being any bigger and flying

Scrooge airlines spoiled my last chance at Christmas with my 95 and 92 year old folks. and rest of the family in Calgary. Ticket personnel would not let me on without a passport and I always visit Canada with my enhanced driver;s License when I travel from the US

Original flight canceled and communicated poorly. A series of gate changes , delays and plane changes followed. Even after the entire flight boarded there was another plane changes followed. Food vouchers provided to my travel companion but not to me despite being on the same reservation. No in flight entertainment. The entire experience was terrible although the flight crew were great.

Flight was on time. Online check in capabilities made things quick and easy. Zone boarding was enforced, which I appreciate. Everyone was not lining up ahead of their zone being called. Crew was professional and friendly.

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

Bad experience boarding and flight got delayed didn’t make it to my next flight

The food on the trip Toronto to Athens could be better: the chicken didn’t taste good.

Conflicting information provided about baggage allowance. One screen said I had a carry on and another said I didnt.

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

Book cheap flights from Washington to Ontario

Recent round-trip flight deals

28/8Thu
1 stopWestJet
7h 34mSEA-YYZ
7/9Sun
1 stopWestJet
7h 59mYYZ-SEA
C$ 313
28/8Thu
1 stopWestJet
8h 17mSEA-YYZ
7/9Sun
2 stopsWestJet
14h 29mYYZ-SEA
C$ 316
14/8Thu
2 stopsAir Canada
11h 39mSEA-YYZ
21/8Thu
1 stopAir Canada
8h 41mYYZ-SEA
C$ 341
14/8Thu
1 stopAir Canada
9h 35mSEA-YYZ
21/8Thu
1 stopAir Canada
8h 41mYYZ-SEA
C$ 343
13/8Wed
1 stop
9h 14mSEA-YYZ
20/8Wed
1 stop
10h 06mYYZ-SEA
C$ 357
12/8Tue
1 stop
7h 19mSEA-YYZ
19/8Tue
1 stop
10h 06mYYZ-SEA
C$ 358
12/8Tue
1 stopUnited Airlines
6h 38mSEA-YYZ
13/8Wed
1 stopUnited Airlines
11h 03mYYZ-SEA
C$ 405
7/11Fri
1 stopUnited Airlines
8h 48mSEA-YYZ
14/11Fri
2 stopsUnited Airlines
11h 25mYYZ-SEA
C$ 412
28/8Thu
1 stopAlaska Airlines
18h 14mGEG-YYZ
2/9Tue
1 stopAlaska Airlines
10h 14mYYZ-GEG
C$ 603
11/8Mon
1 stopAlaska Airlines
22h 37mGEG-YYZ
18/8Mon
1 stopAlaska Airlines
9h 13mYYZ-GEG
C$ 614

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Recent one-way flight deals

29/10Wed
directAir Canada
4h 43mSEA-YYZ
C$ 150
29/10Wed
1 stopAir Canada
7h 29mSEA-YYZ
C$ 159
8/7Tue
1 stopWestJet
8h 51mSEA-YKF
C$ 160
12/8Tue
1 stopWestJet
7h 19mSEA-YYZ
C$ 164
5/10Sun
2 stopsUnited Airlines
11h 50mSEA-YYZ
C$ 166
10/9Wed
directAlaska Airlines
4h 44mSEA-YYZ
C$ 176
9/7Wed
1 stopUnited Airlines
17h 24mSEA-YYZ
C$ 181
9/8Sat
2 stops
14h 54mPDX-YYZ
C$ 187
11/8Mon
2 stops
24h 02mGEG-YYZ
C$ 189
7/8Thu
directAlaska Airlines
4h 43mSEA-YYZ
C$ 198

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Last minute flights from Washington to Ontario

Last minute flight, train and bus deals

3/7Thu
multi-stopDelta
8h 03mPDX-YYZ
15/7Tue
multi-stopDelta
10h 19mYYZ-PDX
C$ 546
1/7Tue
multi-stopDelta
8h 03mPDX-YYZ
8/7Tue
multi-stopDelta
6h 54mYYZ-PDX
C$ 584
1/7Tue
multi-stopUnited Airlines
10h 03mPDX-YYZ
8/7Tue
multi-stopUnited Airlines
9h 18mYYZ-PDX
C$ 598
2/7Wed
multi-stopUnited Airlines
11h 52mPDX-YYZ
8/7Tue
multi-stopUnited Airlines
9h 18mYYZ-PDX
C$ 688
4/7Fri
multi-stopAir Canada
8h 19mPDX-YUL
14/7Mon
multi-stopAir Canada
8h 01mYUL-PDX
C$ 710
2/7Wed
multi-stopAir Canada
7h 21mPDX-YUL
4/7Fri
multi-stopAir Canada
8h 01mYUL-PDX
C$ 715
4/7Fri
directAlaska Airlines
4h 43mSEA-YYZ
11/7Fri
directAlaska Airlines
5h 24mYYZ-SEA
C$ 1,045
2/7Wed
multi-stopWestJet
7h 29mSEA-YYZ
15/7Tue
multi-stopWestJet
12h 38mYYZ-SEA
C$ 1,053
2/7Wed
multi-stopWestJet
7h 29mSEA-YYZ
15/7Tue
multi-stopWestJet
8h 08mYYZ-SEA
C$ 1,060
3/7Thu
multi-stopAlaska Airlines
9h 10mSEA-YYZ
11/7Fri
directAlaska Airlines
5h 24mYYZ-SEA
C$ 1,146

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Everything you need to know for your flight to Ontario

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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