YYZ - SEA

£172 Find Cheap Flights from Toronto to Seattle

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Toronto to Seattle departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to Seattle, as well as popular online travel agencies
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Flights Deals
Expert advice
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Flights Deals

Cheap Flights from Toronto to Seattle (YYZ-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Toronto to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Toronto to Seattle

Mon, 4 Aug - Thu, 14 Aug
WestJet Logo
09:00 - 18:38YYZ-SEA
12h 38m2 stops
WestJet Logo
19:35 - 06:12SEA-YYZ
7h 37m1 stop
£172WestJet
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Fri, 29 Aug - Wed, 29 Oct
Alaska Airlines Logo
16:45 - 19:07YYZ-SEA
5h 22mdirect
Alaska Airlines Logo
07:55 - 15:35SEA-YYZ
4h 40mdirect
£175Alaska Airlines
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Thu, 21 Aug - Fri, 24 Oct
WestJet Logo
06:45 - 12:31YYZ-SEA
8h 46m1 stop
WestJet Logo
07:05 - 17:22SEA-YYZ
7h 17m1 stop
£183WestJet
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Thu, 28 Aug - Sun, 31 Aug
WestJet Logo
08:00 - 12:58YYZ-SEA
7h 58m1 stop
WestJet Logo
08:40 - 20:54SEA-YYZ
9h 14m1 stop
£183WestJet
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Fri, 7 Nov - Sun, 16 Nov
United Airlines Logo
17:55 - 00:59YYZ-SEA
10h 04m1 stop
United Airlines Logo
23:59 - 14:20SEA-YYZ
11h 21m1 stop
£186United Airlines
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Thu, 6 Nov - Thu, 13 Nov
United Airlines Logo
17:55 - 00:59YYZ-SEA
10h 04m1 stop
United Airlines Logo
09:25 - 23:46SEA-YYZ
11h 21m2 stops
£194United Airlines
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Thu, 28 Aug - Sun, 26 Oct
Delta Logo
14:50 - 22:05YYZ-SEA
10h 15m1 stop
Delta Logo
23:05 - 08:59SEA-YYZ
6h 54m1 stop
£208Delta
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Sat, 26 Jul - Sat, 2 Aug
Logo
15:30 - 12:31YYZ-SEA
24h 01m1 stop
Logo
14:55 - 06:40SEA-YYZ
12h 45m2 stops
£209
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Thu, 10 Jul - Fri, 8 Aug
Delta Logo
17:45 - 23:59YYZ-SEA
9h 14m1 stop
Delta Logo
05:30 - 16:40SEA-YYZ
8h 10m1 stop
£211Delta
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Sun, 19 Oct - Thu, 23 Oct
Logo
19:30 - 21:45YYZ-SEA
5h 15mdirect
Logo
07:30 - 15:10SEA-YYZ
4h 40mdirect
£218
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Expert advice

Expert advice for your flight from Toronto to Seattle

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
YYZ

Pearson is known for long security queues. Arrive early: at least two hours for domestic and three for international flights.

Read more about YYZby Stefanie Waldek
SEA

Use the Link light rail for a cost-effective 40-minute trip from SEA to downtown Seattle.

Read more about SEAby Harriet Baskas
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on YYZ

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Useful Info

KAYAK's insights & trends for Toronto to Seattle flights

Get data-powered insights and trends into flights from Toronto to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Toronto Pearson Intl Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Toronto Pearson Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Toronto Pearson Intl Airport to Seattle is February, where tickets cost £198 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £331 and £322 respectively.

How far in advance should I book a flight from Toronto Pearson Intl Airport to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Toronto Pearson Intl Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Toronto Pearson Intl Airport to Seattle, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

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Good to know - Cheap tickets from Toronto to Seattle

Low seasonMarch
High seasonAugust
Cheapest flight£106
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (8% more expensive on average)
Flight from Toronto to Seattle

When to book flights from Toronto to Seattle

Are your dates flexible? Find out the best times to travel from Toronto to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Toronto to Seattle flights

  • What is the cheapest flight from Toronto Pearson Intl Airport to Seattle?

    In the last 3 days, the lowest price for a flight from Toronto Pearson Intl Airport to Seattle was £144 for a one-way ticket and £234 for a return.

  • Which airports will I be using when flying from Toronto to Seattle?

    Toronto airport is called Toronto Pearson Intl and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Toronto to Seattle?

    Air Canada, Alaska Airlines, United Airlines, Delta, and WestJet offer inflight Wi-Fi service on the Toronto to Seattle flight route.

  • Which aircraft models fly most regularly from Toronto to Seattle?

    The Airbus A220-300 is the aircraft model that flies most regularly on the Toronto to Seattle flight route.

  • Which airline alliances offer flights from Toronto to Seattle?

    Star Alliance, and oneworld are the airline alliances operating flights between Toronto and Seattle, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Toronto to Seattle?

    There are direct flights from Toronto to Seattle on a daily basis.

  • How does KAYAK find such low prices on flights from Toronto to Seattle?

    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 Toronto to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Toronto 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 Toronto to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Seattle with an airline and back to Toronto with another airline.

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

    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 to Seattle from Toronto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Toronto to Seattle?

Find which airlines fly direct from Toronto Pearson Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Toronto Pearson Intl to Seattle/Tacoma Intl

Monday

Air Canada, Air Tahiti Nui, Alaska Airlines, +2 more

Air Canada, Air Tahiti Nui, +3 more

Tuesday

Air Canada, Air Tahiti Nui, Alaska Airlines, +3 more

Air Canada, Air Tahiti Nui, +4 more

Wednesday

Air Canada, Air Tahiti Nui, Alaska Airlines, +3 more

Air Canada, Air Tahiti Nui, +4 more

Thursday

Air Canada, Air Tahiti Nui, Alaska Airlines, +2 more

Air Canada, Air Tahiti Nui, +3 more

Friday

Air Canada, Air Tahiti Nui, Alaska Airlines, +3 more

Air Canada, Air Tahiti Nui, +4 more

Saturday

Air Canada, Air Tahiti Nui, Alaska Airlines, +2 more

Air Canada, Air Tahiti Nui, +3 more

Sunday

Air Canada, Air Tahiti Nui, Alaska Airlines, +3 more

Air Canada, Air Tahiti Nui, +4 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Toronto Pearson Intl

Monday

Air Canada, Air Tahiti Nui, Alaska Airlines, +2 more

Air Canada, Air Tahiti Nui, +3 more

Tuesday

Air Canada, Air Tahiti Nui, Alaska Airlines, +3 more

Air Canada, Air Tahiti Nui, +4 more

Wednesday

Air Canada, Air Tahiti Nui, Alaska Airlines, +3 more

Air Canada, Air Tahiti Nui, +4 more

Thursday

Air Canada, Air Tahiti Nui, Alaska Airlines, +4 more

Air Canada, Air Tahiti Nui, +5 more

Friday

Air Canada, Air Tahiti Nui, Alaska Airlines, +3 more

Air Canada, Air Tahiti Nui, +4 more

Saturday

Air Canada, Air Tahiti Nui, Alaska Airlines, +4 more

Air Canada, Air Tahiti Nui, +5 more

Sunday

Air Canada, Air Tahiti Nui, Alaska Airlines, +4 more

Air Canada, Air Tahiti Nui, +5 more

See more direct flights
See more direct flights

Everything you need to know for your flight from Toronto to Seattle

Information on your arrival and departure airports

Toronto (YYZ)
Seattle (SEA)

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