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Cheap flights from Seattle to Toronto from C$ 241

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
2:30 p.m. - 5:45 a.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
12h 15m2 stops Calgary Edmonton
WestJet Logo
6:10 a.m. - 1:40 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 507WestJet
Tue, 15 Dec - Fri, 18 Dec
WestJet Logo
2:30 p.m. - 5:45 a.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
12h 15m2 stops Calgary Edmonton
WestJet Logo
6:10 a.m. - 1:40 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 509WestJet
Mon, 16 Nov - Thu, 7 Jan
WestJet Logo
2:30 p.m. - 5:45 a.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
12h 15m2 stops Calgary Edmonton
WestJet Logo
6:10 a.m. - 1:40 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 530WestJet
Mon, 7 Dec - Mon, 14 Dec
Multiple Airlines Logo
8:46 a.m. - 9:42 p.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
9h 56m1 stop San Francisco
Multiple Airlines Logo
7:30 a.m. - 1:40 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
9h 10m1 stop Calgary
C$ 545Multiple Airlines
Sat, 5 Dec - Sun, 13 Dec
Multiple Airlines Logo
9:09 p.m. - 6:52 a.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
30h 43m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:30 a.m. - 1:40 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
9h 10m1 stop Calgary
C$ 556Multiple Airlines
Sun, 6 Dec - Thu, 28 Jan
Multiple Airlines Logo
6:33 p.m. - 6:50 a.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
9h 17m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:10 a.m. - 1:40 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 572Multiple Airlines
Thu, 25 Feb - Sun, 28 Feb
Alaska Airlines Logo
8:33 a.m. - 4:05 p.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
4h 32mdirect
Alaska Airlines Logo
5:15 p.m. - 8:13 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
5h 58mdirect
C$ 660Alaska Airlines
Fri, 11 Dec - Fri, 18 Dec
Alaska Airlines Logo
8:21 a.m. - 4:05 p.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
4h 44mdirect
Alaska Airlines Logo
5:15 p.m. - 7:43 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
5h 28mdirect
C$ 670Alaska Airlines
Wed, 24 Feb - Sun, 28 Feb
Air Canada Logo
8:40 a.m. - 9:09 p.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
9h 29m1 stop Vancouver Intl
Air Canada Logo
4:50 p.m. - 9:57 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
8h 07m1 stop Vancouver Intl
C$ 762Air Canada
Wed, 11 Nov - Wed, 18 Nov
Air Canada Logo
7:45 a.m. - 3:25 p.m.SEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
4h 40mdirect
Air Canada Logo
4:50 p.m. - 9:57 p.m.YYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
8h 07m1 stop Vancouver Intl
C$ 788Air Canada
Sun, 8 Nov - Thu, 12 Nov

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WestJet flights from Seattle to Toronto Pearson Intl Airport

Our best WestJet deals on Seattle to Toronto Pearson Intl Airport flight tickets
WestJet
16 Nov
SEA2:30 p.m.Seattle/Tacoma Intl
12h 15m
2 stops
YYZ5:45 a.m.Toronto Pearson Intl
7 Jan
YYZ6:10 a.m.Toronto Pearson Intl
10h 30m
1 stop
SEA1:40 p.m.Seattle/Tacoma Intl
C$ 509
WestJet
7 Dec
SEA2:30 p.m.Seattle/Tacoma Intl
12h 15m
2 stops
YYZ5:45 a.m.Toronto Pearson Intl
14 Dec
YYZ6:10 a.m.Toronto Pearson Intl
10h 30m
1 stop
SEA1:40 p.m.Seattle/Tacoma Intl
C$ 530
WestJet
21 Nov
SEA2:20 p.m.Seattle/Tacoma Intl
12h 25m
2 stops
YYZ5:45 a.m.Toronto Pearson Intl
1 Dec
YYZ7:30 a.m.Toronto Pearson Intl
9h 10m
1 stop
SEA1:40 p.m.Seattle/Tacoma Intl
C$ 545

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Toronto Pearson Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Tue 15/12

2:30 p.m.-5:45 a.m.

2 stops12h 15m

Toronto Pearson Intl

Fri 18/12

6:10 a.m.-1:40 p.m.

1 stop10h 30m

C$ 507

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Mon 16/11

2:30 p.m.-5:45 a.m.

2 stops12h 15m

Toronto Pearson Intl

Thu 7/1

6:10 a.m.-1:40 p.m.

1 stop10h 30m

C$ 509

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Mon 7/12

2:30 p.m.-5:45 a.m.

2 stops12h 15m

Toronto Pearson Intl

Mon 14/12

6:10 a.m.-1:40 p.m.

1 stop10h 30m

C$ 530

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 5/12

8:46 a.m.-9:42 p.m.

1 stop9h 56m

Toronto Pearson Intl

Sun 13/12

7:30 a.m.-1:40 p.m.

1 stop9h 10m

C$ 545

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sun 6/12

9:09 p.m.-6:52 a.m.

1 stop30h 43m

Toronto Pearson Intl

Thu 28/1

7:30 a.m.-1:40 p.m.

1 stop9h 10m

C$ 556

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 25/2

6:33 p.m.-6:50 a.m.

1 stop9h 17m

Toronto Pearson Intl

Sun 28/2

6:10 a.m.-1:40 p.m.

1 stop10h 30m

C$ 572

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 11/12

8:33 a.m.-4:05 p.m.

Nonstop4h 32m

Toronto Pearson Intl

Fri 18/12

5:15 p.m.-8:13 p.m.

Nonstop5h 58m

C$ 660
Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Wed 24/2

8:21 a.m.-4:05 p.m.

Nonstop4h 44m

Toronto Pearson Intl

Sun 28/2

5:15 p.m.-7:43 p.m.

Nonstop5h 28m

C$ 670

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Wed 11/11

8:40 a.m.-9:09 p.m.

1 stop9h 29m

Toronto Pearson Intl

Wed 18/11

4:50 p.m.-9:57 p.m.

1 stop8h 07m

C$ 762

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sun 8/11

7:45 a.m.-3:25 p.m.

Nonstop4h 40m

Toronto Pearson Intl

Thu 12/11

4:50 p.m.-9:57 p.m.

1 stop8h 07m

C$ 788

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Seattle and Toronto Pearson Intl Airport?

Prices are currently typical for flights on this route.

Typical prices usually range from C$ 366 to C$ 968.
The lowest price recently found on this route was C$ 509.

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 February instead. Flights to Toronto Pearson Intl Airport in February, while not as cheap as those in January, still average around C$ 388.

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

Our data shows that Thursday 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$ 756. When flying out on a Monday, 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$ 1,175.

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 from Seattle to Toronto Pearson Intl Airport?

You are more likely to see cheaper flights to Toronto Pearson Intl Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around C$ 619 when searching 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$ 446 on momondo.

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

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

Can stopping save me money on Seattle to Toronto Pearson Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Seattle to Toronto Pearson Intl Airport.

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

As of October 2026, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 3% 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$ 241

Fastest flight time

4h 34m

Direct flights

Every day
The best one-way flight to Toronto Pearson Intl Airport from Seattle in the past 72 hours is C$ 241. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is C$ 507.
The fastest flight from Seattle to Toronto Pearson Intl Airport takes 4h 34m
Direct flights go from Seattle to Toronto Pearson Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Seattle to Toronto Pearson Intl Airport

  • 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 34m 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
Alaska AirlinesPriceFrom C$ 316Free CancellationRating
7.9
13,123 reviews
Search Alaska Airlines flights
WestJetPriceFrom C$ 356Free CancellationRating
7.2
3,444 reviews
Search WestJet flights
Air CanadaPriceFrom C$ 370Free CancellationRating
7.1
11,819 reviews
Search Air Canada flights

  • Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport

    Alaska Airlines operates around 5 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$ 947, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as C$ 316 round-trip. Alaska Airlines has been scored 7.9/10 in 13,123 reviews.

  • Air Canada Flights From Seattle to Toronto Pearson Intl Airport

    Air Canada (7.1/10 from 11,819 reviews) operates around 6 flights from Seattle to Toronto Pearson Intl Airport in any given week. The average Air Canada airfare for this route is around C$ 756, with deals from around C$ 370 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
Collingwood
Markham
Oshawa
Vaughan
Guelph
Barrie
Kitchener
Niagara-on-the-Lake
Waterloo
Oakville
Cambridge
Burlington
Peterborough
Richmond Hill
Orillia
Pickering
Brantford

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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