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Cheap flights from Seattle to Toronto Pearson Intl Airport from C$ 142

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Toronto Pearson Intl Airport departing on 6/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Toronto that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Toronto.

Cheap last-minute flights

Planning a quick getaway from Seattle to Toronto? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Toronto, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Toronto

Find recent round-trip train or bus tickets from Seattle to Toronto.

All round-trip flight deals from Seattle to Toronto

The cheapest plane tickets from Seattle to Toronto found on KAYAK recently.
9:45 a.m. - 6:43 a.m.SEA-YYZ
17h 58m1 stop
8:00 p.m. - 9:40 a.m.YYZ-SEA
16h 40m1 stop
C$ 323
Find Deal
Tue, 4 Feb - Wed, 5 Feb
9:45 a.m. - 6:43 a.m.SEA-YYZ
17h 58m1 stop
10:00 a.m. - 12:19 a.m.YYZ-SEA
17h 19m2 stops
C$ 325
Find Deal
Tue, 4 Feb - Wed, 5 Feb
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
4:20 p.m. - 6:44 p.m.YYZ-SEA
5h 24mdirect
C$ 352Alaska Airlines
Find Deal
Tue, 18 Feb - Tue, 25 Feb
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
4:20 p.m. - 6:44 p.m.YYZ-SEA
5h 24mdirect
C$ 382Alaska Airlines
Find Deal
Tue, 18 Feb - Fri, 21 Feb
3:15 p.m. - 5:58 a.m.SEA-YYZ
11h 43m2 stops
7:55 a.m. - 2:21 p.m.YYZ-SEA
9h 26m1 stop
C$ 391WestJet
Find Deal
Wed, 12 Mar - Wed, 19 Mar
2:05 p.m. - 12:24 a.m.SEA-YYZ
7h 19m1 stop
1:30 p.m. - 8:28 p.m.YYZ-SEA
9h 58m1 stop
C$ 423WestJet
Find Deal
Sat, 3 May - Wed, 7 May
11:59 p.m. - 4:46 p.m.SEA-YYZ
13h 47m1 stop
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 435United Airlines
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Thu, 20 Feb - Fri, 21 Feb
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 441Air Canada
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Thu, 6 Feb - Wed, 12 Feb
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 444Air Canada
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Mon, 10 Feb - Wed, 19 Feb
11:59 p.m. - 4:46 p.m.SEA-YYZ
13h 47m1 stop
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 446United Airlines
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Mon, 17 Feb - Tue, 18 Feb
7:10 a.m. - 11:33 p.m.SEA-YYZ
13h 23m2 stops
C$ 142
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Thu, 6 Feb
7:10 a.m. - 6:43 a.m.SEA-YYZ
20h 33m1 stop
C$ 145
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Thu, 6 Feb
11:30 a.m. - 12:26 a.m.SEA-YYZ
9h 56m2 stops
C$ 162WestJet
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Fri, 7 Feb
11:30 a.m. - 12:26 a.m.SEA-YYZ
9h 56m2 stops
C$ 168WestJet
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Mon, 27 Jan
7:17 a.m. - 2:55 p.m.SEA-YYZ
4h 38mdirect
C$ 171Alaska Airlines
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Fri, 7 Feb
7:15 a.m. - 2:55 p.m.SEA-YYZ
4h 40mdirect
C$ 185Alaska Airlines
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Fri, 21 Mar
6:05 a.m. - 1:55 p.m.SEA-YYZ
4h 50mdirect
C$ 190Air Canada
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Thu, 24 Apr
11:05 p.m. - 9:17 a.m.SEA-YYZ
7h 12m1 stop
C$ 197Delta
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Sat, 1 Mar
3:05 p.m. - 12:47 a.m.SEA-YYZ
6h 42m1 stop
C$ 204Air Canada
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Sat, 22 Mar
11:05 p.m. - 11:56 a.m.SEA-YYZ
9h 51m1 stop
C$ 246Delta
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Sat, 15 Feb
9:52 p.m. - 8:05 p.m.SEA-YYZ
19h 13m1 stop
10:35 p.m. - 2:21 p.m.YYZ-SEA
18h 46m1 stop
C$ 933
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Fri, 17 Jan - Mon, 20 Jan
3:15 p.m. - 11:53 p.m.SEA-YYZ
29h 38m2 stops
10:35 p.m. - 2:21 p.m.YYZ-SEA
18h 46m1 stop
C$ 1,056
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Fri, 17 Jan - Mon, 20 Jan
7:28 a.m. - 6:07 p.m.SEA-YYZ
7h 39m1 stop
10:35 p.m. - 2:21 p.m.YYZ-SEA
18h 46m1 stop
C$ 1,158WestJet
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Fri, 17 Jan - Mon, 20 Jan
5:30 p.m. - 6:14 a.m.SEA-YYZ
9h 44m1 stop
7:55 a.m. - 2:21 p.m.YYZ-SEA
9h 26m1 stop
C$ 1,334WestJet
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Fri, 17 Jan - Sun, 19 Jan
5:55 p.m. - 7:56 p.m.SEA-YYZ
23h 01m2 stops
8:00 p.m. - 5:00 p.m.YYZ-SEA
24h 00m3 stops
C$ 1,350
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Fri, 17 Jan - Mon, 20 Jan
5:55 p.m. - 7:56 p.m.SEA-YYZ
23h 01m2 stops
4:00 p.m. - 5:00 p.m.YYZ-SEA
28h 00m2 stops
C$ 1,360
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Fri, 17 Jan - Mon, 20 Jan
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
10:40 p.m. - 8:15 a.m.YYZ-SEA
12h 35m1 stop
C$ 1,377
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Fri, 17 Jan - Mon, 20 Jan
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
C$ 1,620Alaska Airlines
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Fri, 17 Jan - Sun, 19 Jan
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 1,666United Airlines
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Fri, 17 Jan - Mon, 20 Jan
7:05 p.m. - 6:52 a.m.SEA-YYZ
8h 47m1 stop
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 1,673Air Canada
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Fri, 17 Jan - Sun, 19 Jan
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
4:20 p.m. - 6:44 p.m.YYZ-SEA
5h 24mdirect
C$ 352Alaska Airlines
Find Deal
Tue, 18 Feb - Tue, 25 Feb
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
4:20 p.m. - 6:44 p.m.YYZ-SEA
5h 24mdirect
C$ 382Alaska Airlines
Find Deal
Sat, 8 Mar - Wed, 12 Mar
7:15 a.m. - 2:55 p.m.SEA-YYZ
4h 40mdirect
4:30 p.m. - 6:50 p.m.YYZ-SEA
5h 20mdirect
C$ 404Alaska Airlines
Find Deal
Thu, 20 Mar - Tue, 1 Apr
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
4:20 p.m. - 6:44 p.m.YYZ-SEA
5h 24mdirect
C$ 411Alaska Airlines
Find Deal
Mon, 10 Mar - Fri, 14 Mar
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 414
Find Deal
Sat, 1 Mar - Sat, 8 Mar
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 420
Find Deal
Sat, 1 Mar - Sat, 8 Mar
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 441Air Canada
Find Deal
Thu, 6 Feb - Wed, 12 Feb
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 443Air Canada
Find Deal
Mon, 10 Feb - Wed, 19 Feb
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 464United Airlines
Find Deal
Wed, 19 Feb - Wed, 19 Feb
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 484United Airlines
Find Deal
Thu, 6 Feb - Wed, 12 Feb

United Airlines flights from Seattle to Toronto Pearson Intl Airport

Our best United Airlines deals on Seattle to Toronto Pearson Intl Airport flight tickets
United Airlines
20 Feb
SEA11:59 p.m.Seattle/Tacoma Intl
13h 47m
1 stop
YYZ4:46 p.m.Toronto Pearson Intl
21 Feb
YYZ7:05 p.m.Toronto Pearson Intl
5h 25m
SEA9:30 p.m.Seattle/Tacoma Intl
United Airlines
17 Feb
SEA11:59 p.m.Seattle/Tacoma Intl
13h 47m
1 stop
YYZ4:46 p.m.Toronto Pearson Intl
18 Feb
YYZ7:05 p.m.Toronto Pearson Intl
5h 25m
SEA9:30 p.m.Seattle/Tacoma Intl
United Airlines
20 Feb
SEA5:02 a.m.Seattle/Tacoma Intl
7h 00m
1 stop
YYZ3:02 p.m.Toronto Pearson Intl
20 Feb
YYZ6:00 p.m.Toronto Pearson Intl
9h 55m
1 stop
SEA12:55 a.m.Seattle/Tacoma Intl

Delta flights from Seattle to Toronto Pearson Intl Airport

Our best Delta deals on Seattle to Toronto Pearson Intl Airport flight tickets
Delta
13 Mar
SEA12:49 a.m.Seattle/Tacoma Intl
9h 44m
1 stop
YYZ1:33 p.m.Toronto Pearson Intl
24 Mar
YYZ5:00 p.m.Toronto Pearson Intl
10h 09m
1 stop
SEA12:09 a.m.Seattle/Tacoma Intl
Delta
9 Mar
SEA10:55 p.m.Seattle/Tacoma Intl
7h 27m
1 stop
YYZ9:22 a.m.Toronto Pearson Intl
13 Mar
YYZ12:15 p.m.Toronto Pearson Intl
13h 10m
1 stop
SEA10:25 p.m.Seattle/Tacoma Intl
Delta
12 Feb
SEA11:05 p.m.Seattle/Tacoma Intl
9h 51m
1 stop
YYZ11:56 a.m.Toronto Pearson Intl
17 Feb
YYZ5:00 p.m.Toronto Pearson Intl
10h 50m
1 stop
SEA12:50 a.m.Seattle/Tacoma Intl

See travel insights to Toronto from

How to get the cheapest flight ticket from Seattle to Toronto Pearson Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

If you aren’t able to travel during the month of January, then book flights to Toronto Pearson Intl Airport from Seattle during October instead. Flights to Toronto Pearson Intl Airport in October, while not as cheap as those in January, still average around C$ 579.

What is the cheapest day to depart on your flight to Toronto Pearson Intl Airport?

Our data shows that Sunday is the least expensive day to fly to Toronto Pearson Intl Airport. Tickets to fly out on this day can be as low as C$ 466. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Toronto Pearson Intl Airport for around C$ 803.

What is the cheapest time of day to depart on your flight to Toronto Pearson Intl Airport?

Our data shows that the cheapest Seattle to Toronto Pearson Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Toronto Pearson Intl Airport in the afternoon for as low as C$ 497. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 835 on average. Flights to Toronto Pearson Intl Airport from Seattle at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Seattle/Tacoma Intl to Toronto Pearson Intl flight route?

Fly from Seattle/Tacoma Intl to Toronto Pearson Intl for the best Seattle/Tacoma Intl - Toronto Pearson Intl flight prices

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

You are more likely to see cheaper flights to Toronto Pearson Intl Airport from Seattle when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around C$ 720 when searching 17 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto Pearson Intl Airport from Seattle for as low as C$ 542 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Toronto Pearson Intl flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Toronto Pearson Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Toronto Pearson Intl Airport flight prices changed over time?

As of January 2025, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 53% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Toronto Pearson Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Toronto Pearson Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Toronto Pearson Intl Airport (SEA to YYZ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Toronto Pearson Intl Airport

Best price found

C$ 142

Fastest flight time

4h 35m

Direct flights

Every day
The best one-way flight to Toronto Pearson Intl Airport from Seattle in the past 72 hours is C$ 142. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is C$ 323.
The fastest flight from Seattle to Toronto Pearson Intl Airport takes 4h 35m
Direct flights go from Seattle to Toronto Pearson Intl Airport every day.

  • How far is Seattle/Tacoma Intl to Toronto Pearson Intl by plane?

    The distance between Seattle/Tacoma Intl and Toronto Pearson Intl is about 3304.6 km. 4h 37m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Toronto Pearson Intl Airport.

  • What documentation or ID do you need to fly to Toronto Pearson Intl Airport?

    The travel and health documents required for your trip to Toronto Pearson Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Toronto Pearson Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Toronto Pearson Intl Airport?

  • What is the most popular airline from Seattle to Toronto Pearson Intl Airport?


Best airlines flying from Seattle to Toronto Pearson Intl Airport

Compare and see reviews for airlines that fly from Seattle to Toronto Pearson Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 234Free CancellationRating
7.0
8,587 reviews
Search Air Canada flights
Alaska AirlinesPriceFrom C$ 383Free CancellationRating
8.0
9,681 reviews
Search Alaska Airlines flights
  • Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport

    Alaska Airlines operates around 6 flights from Seattle to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 459, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as C$ 267 round-trip. Alaska Airlines has been scored 8.0/10 in 9,681 reviews.

  • Air Canada Flights From Seattle to Toronto Pearson Intl Airport

    Air Canada (7.0/10 from 8,587 reviews) operates around 7 flights from Seattle to Toronto Pearson Intl Airport in any given week. The average Air Canada airfare for this route is around C$ 586, with deals from around C$ 163 rare but found on momondo. Referenced prices are for round-trip Seattle to Toronto Pearson Intl Airport flight searches in the last 72 hours.


Travelling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Niagara Falls
Mississauga
Brampton
Markham
Collingwood
Oshawa
Vaughan
Niagara-on-the-Lake
Barrie
Muskoka
Kitchener
Burlington
Oakville
Brantford
Orillia
Gravenhurst
Peterborough
Cambridge
Guelph
Waterloo

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Toronto?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Toronto. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Toronto with flexible booking policies on momondo?

Flights from Seattle to Toronto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Toronto?

Once all potential Seattle to Toronto flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Toronto right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Toronto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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