Cheap Flights from Seattle to Toronto
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Flights from Seattle to Toronto
Airlines Flying from Seattle to Toronto
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Flight deals from Seattle to Toronto
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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Cheapest nonstop
SEA 07:234h 37mDirectYYZ 15:00Seattle - Toronto | Mon, May 26 | Alaska Airlines
YYZ 16:455h 19mDirectSEA 19:04Toronto - Seattle | Wed, May 28 | Alaska AirlinesHK$2,249 HK$2,87022% OFF22% OFFHK$2,870 HK$2,249 -
SEA 07:234h 37mDirectYYZ 15:00Seattle - Toronto | Sun, Jun 8 | Alaska Airlines
YYZ 16:455h 19mDirectSEA 19:04Toronto - Seattle | Tue, Jun 10 | Alaska AirlinesHK$2,267 HK$2,87021% OFF21% OFFHK$2,870 HK$2,267
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SEA 13:507h 51m1 stopsYHM 00:41Seattle - Toronto | Fri, May 30 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Fri, Jun 6 | WestJetHK$1,099 HK$2,87062% OFF62% OFFHK$2,870 HK$1,099 -
SEA 13:507h 51m1 stopsYHM 00:41Seattle - Toronto | Thu, May 29 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Thu, Jun 5 | WestJetHK$1,10062% OFFHK$2,870 HK$1,100
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SEA 13:507h 51m1 stopsYHM 00:41Seattle - Toronto | Sat, May 24 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Sat, May 31 | WestJetHK$1,11261% OFFHK$2,870 HK$1,112
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SEA 13:507h 51m1 stopsYHM 00:41Seattle - Toronto | Wed, May 28 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Wed, Jun 4 | WestJetHK$1,11261% OFFHK$2,870 HK$1,112
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SEA 07:058h 51m1 stopsYKF 18:56Seattle - Toronto | Tue, Jul 1 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Thu, Jul 3 | WestJetHK$1,15760% OFFHK$2,870 HK$1,157
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SEA 14:057h 41m1 stopsYKF 00:46Seattle - Toronto | Sun, Jun 29 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Mon, Jun 30 | WestJetHK$1,20757% OFFHK$2,870 HK$1,207
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SEA 13:507h 56m1 stopsYKF 00:46Seattle - Toronto | Wed, Jul 16 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Sun, Jul 20 | WestJetHK$1,22856% OFFHK$2,870 HK$1,228
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SEA 13:507h 56m1 stopsYKF 00:46Seattle - Toronto | Thu, Jul 3 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Fri, Jul 11 | WestJetHK$1,23556% OFFHK$2,870 HK$1,235
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SEA 13:507h 51m1 stopsYHM 00:41Seattle - Toronto | Wed, Jun 4 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Wed, Jun 11 | WestJetHK$1,23956% OFFHK$2,870 HK$1,239
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SEA 13:507h 56m1 stopsYKF 00:46Seattle - Toronto | Wed, Jun 25 | WestJet
YKF 06:009h 58m1 stopsSEA 12:58Toronto - Seattle | Mon, Jun 30 | WestJetHK$1,24756% OFFHK$2,870 HK$1,247
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SEA 13:0017h 25m1 stopsYTO Invalid DateSeattle - Toronto | Wed, May 21 | Normal Airline
YTO 15:006hDirectSEA 16:00Toronto - Seattle | Fri, May 23 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
SEA 07:174h 43mDirectYYZ 15:00Seattle - Toronto | Tue, Jun 24 | Alaska AirlinesHK$952 HK$1,24223% OFF23% OFFHK$1,242 HK$952
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SEA 11:354h 57mDirectYYZ 19:32Seattle - Toronto | Wed, Jun 11 | Air CanadaHK$968 HK$1,24222% OFF22% OFFHK$1,242 HK$968 -
SEA 14:057h 41m1 stopsYKF 00:46Seattle - Toronto | Mon, Jul 14 | WestJetHK$503 HK$1,24259% OFF59% OFFHK$1,242 HK$503
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SEA 14:057h 41m1 stopsYKF 00:46Seattle - Toronto | Tue, Jun 3 | WestJetHK$51459% OFFHK$1,242 HK$514
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SEA 14:057h 41m1 stopsYKF 00:46Seattle - Toronto | Tue, Jun 10 | WestJetHK$53456% OFFHK$1,242 HK$534
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SEA 13:507h 56m1 stopsYKF 00:46Seattle - Toronto | Thu, Jun 26 | WestJetHK$54456% OFFHK$1,242 HK$544
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SEA 07:058h 51m1 stopsYKF 18:56Seattle - Toronto | Tue, Jul 1 | WestJetHK$55256% OFFHK$1,242 HK$552
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SEA 13:507h 56m1 stopsYKF 00:46Seattle - Toronto | Fri, Jul 11 | WestJetHK$55256% OFFHK$1,242 HK$552
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SEA 13:507h 56m1 stopsYKF 00:46Seattle - Toronto | Wed, Jul 9 | WestJetHK$55555% OFFHK$1,242 HK$555
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SEA 13:507h 56m1 stopsYKF 00:46Seattle - Toronto | Wed, Jun 25 | WestJetHK$55755% OFFHK$1,242 HK$557
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SEA 14:057h 41m1 stopsYKF 00:46Seattle - Toronto | Sun, Jun 8 | WestJetHK$55855% OFFHK$1,242 HK$558
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SEA 14:057h 36m1 stopsYHM 00:41Seattle - Toronto | Tue, Jun 24 | WestJetHK$98121% OFFHK$1,242 HK$981
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SEA 13:0017h 25m1 stopsYTO Invalid DateSeattle - Toronto | Wed, May 21 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Information from Seattle to Toronto
| Cheapest one-way flight price | HK$502 |
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| Cheapest return ticket price | HK$1,555 |
| Off-season travel month | April |
| Peak season for travel | June |
| Flight distance | 3,325.49km |
| Average flight time | 5 hours 2 minutes |
| Popular airline | Alaska Airlines |
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
FAQ
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When are flight tickets from Seattle (SEA) to Toronto (YTO) the cheapest?
Airlines adjust prices for flights from Seattle to Toronto based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much are flights from Seattle (SEA) to Toronto (YTO) cost?
According to Trip.com's data, the lowest price is around HK$2,701. -
How long is the flight from Seattle (SEA) to Toronto (YTO)?
It takes about 5 hours 2 minutes to fly from Seattle (SEA) to Toronto (YTO). -
What are the most popular airlines that fly from Seattle (SEA) to Toronto (YTO)?
Airlines with flights from Seattle (SEA) to Toronto (YTO): Air Canada, Air Tahiti Nui, Brussels Airlines, Alaska Airlines, United Airlines, Hawaiian Airlines and Qatar Airways. -
How many airports in Toronto (YTO)?
There are 4 airport(s) in Toronto (YTO): John C. Munro Hamilton International Airport, Region Of Waterloo International Airport, Billy Bishop Toronto City Airport and Toronto Pearson International Airport.
How to find a cheap flight from Seattle to Toronto
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Toronto. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest flight from Seattle to Toronto.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from Seattle to Toronto over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Tue, Jun 24, with one-way flights priced at just HK$952.
Compare cheap flight deals from Seattle to Toronto across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from Seattle to Toronto. The cheapest airline for this route is Alaska Airlines.
Set up a Price Alert
By setting up a Price Alert for your journey from Seattle to Toronto, you can easily keep an eye on ticket prices without having to check every day.
Don't miss out on cheap flight deals and promo codes from Seattle to Toronto.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from Seattle to Toronto and snag some exclusive deals just for you.
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