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Cheap flights from Seattle to Toronto from $172

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 pm - 5:45 amSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
12h 15m2 stops Calgary Edmonton
WestJet Logo
6:10 am - 1:40 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
$362WestJet
Tue, Dec 15 - Fri, Dec 18
WestJet Logo
2:30 pm - 5:45 amSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
12h 15m2 stops Calgary Edmonton
WestJet Logo
6:10 am - 1:40 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
$363WestJet
Mon, Nov 16 - Thu, Jan 7
Multiple Airlines Logo
6:33 pm - 6:50 amSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
9h 17m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
7:30 am - 1:40 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
9h 10m1 stop Calgary
$377Multiple Airlines
Thu, Jan 14 - Mon, Jan 18
Multiple Airlines Logo
8:46 am - 9:42 pmSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
9h 56m1 stop San Francisco
Multiple Airlines Logo
7:30 am - 1:40 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
9h 10m1 stop Calgary
$389Multiple Airlines
Sat, Dec 5 - Sun, Dec 13
Alaska Airlines Logo
8:33 am - 4:05 pmSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
4h 32mnonstop
Alaska Airlines Logo
5:15 pm - 8:13 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
5h 58mnonstop
$471Alaska Airlines
Fri, Dec 11 - Fri, Dec 18
Alaska Airlines Logo
8:21 am - 4:05 pmSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
4h 44mnonstop
Alaska Airlines Logo
5:15 pm - 7:43 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
5h 28mnonstop
$478Alaska Airlines
Wed, Feb 24 - Sun, Feb 28
Delta Logo
9:55 pm - 11:14 amSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
10h 19m1 stop New York John F Kennedy Intl
Delta Logo
6:30 am - 10:55 amYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
7h 25m1 stop Minneapolis St Paul
$507Delta
Sat, Feb 20 - Sat, Feb 27
Delta Logo
9:55 pm - 11:14 amSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
10h 19m1 stop New York John F Kennedy Intl
Delta Logo
12:15 pm - 6:38 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
9h 23m1 stop Detroit Metropolitan Wayne County
$507Delta
Sat, Feb 20 - Sat, Feb 27
Air Canada Logo
8:40 am - 9:09 pmSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
9h 29m1 stop Vancouver Intl
Air Canada Logo
4:50 pm - 9:57 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
8h 07m1 stop Vancouver Intl
$544Air Canada
Wed, Nov 11 - Wed, Nov 18
Air Canada Logo
7:45 am - 3:25 pmSEA  Seattle/Tacoma Intl-YYZ Toronto Pearson Intl
4h 40mnonstop
Air Canada Logo
4:50 pm - 9:57 pmYYZ  Toronto Pearson Intl-SEA Seattle/Tacoma Intl
8h 07m1 stop Vancouver Intl
$562Air Canada
Sun, Nov 8 - Thu, Nov 12

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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
Dec 15
SEA2:30 pmSeattle/Tacoma Intl
12h 15m
2 stops
YYZ5:45 amToronto Pearson Intl
Dec 18
YYZ6:10 amToronto Pearson Intl
10h 30m
1 stop
SEA1:40 pmSeattle/Tacoma Intl
$362
WestJet
Nov 16
SEA2:30 pmSeattle/Tacoma Intl
12h 15m
2 stops
YYZ5:45 amToronto Pearson Intl
Jan 7
YYZ6:10 amToronto Pearson Intl
10h 30m
1 stop
SEA1:40 pmSeattle/Tacoma Intl
$363
WestJet
Dec 3
SEA2:30 pmSeattle/Tacoma Intl
12h 15m
2 stops
YYZ5:45 amToronto Pearson Intl
Dec 9
YYZ7:30 amToronto Pearson Intl
9h 10m
1 stop
SEA1:40 pmSeattle/Tacoma Intl
$375

Air Canada flights from Seattle to Toronto Pearson Intl Airport

Our best Air Canada deals on Seattle to Toronto Pearson Intl Airport flight tickets
Air Canada
Nov 8
SEA7:45 amSeattle/Tacoma Intl
4h 40m
YYZ3:25 pmToronto Pearson Intl
Nov 12
YYZ4:50 pmToronto Pearson Intl
8h 07m
1 stop
SEA9:57 pmSeattle/Tacoma Intl
$562
Air Canada
Nov 9
SEA7:45 amSeattle/Tacoma Intl
4h 40m
YYZ3:25 pmToronto Pearson Intl
Nov 12
YYZ6:25 pmToronto Pearson Intl
5h 34m
SEA8:59 pmSeattle/Tacoma Intl
$733
Air Canada
Nov 9
SEA7:05 pmSeattle/Tacoma Intl
8h 47m
1 stop
YYZ6:52 amToronto Pearson Intl
Nov 12
YYZ6:25 pmToronto Pearson Intl
5h 34m
SEA8:59 pmSeattle/Tacoma Intl
$739

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 12/15

2:30 pm-5:45 am

2 stops12h 15m

Toronto Pearson Intl

Fri 12/18

6:10 am-1:40 pm

1 stop10h 30m

$362

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Mon 11/16

2:30 pm-5:45 am

2 stops12h 15m

Toronto Pearson Intl

Thu 1/7

6:10 am-1:40 pm

1 stop10h 30m

$363

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Thu 1/14

6:33 pm-6:50 am

1 stop9h 17m

Toronto Pearson Intl

Mon 1/18

7:30 am-1:40 pm

1 stop9h 10m

$377

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 12/5

8:46 am-9:42 pm

1 stop9h 56m

Toronto Pearson Intl

Sun 12/13

7:30 am-1:40 pm

1 stop9h 10m

$389

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Fri 12/11

8:33 am-4:05 pm

Nonstop4h 32m

Toronto Pearson Intl

Fri 12/18

5:15 pm-8:13 pm

Nonstop5h 58m

$471
Quickest round-trip

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Wed 2/24

8:21 am-4:05 pm

Nonstop4h 44m

Toronto Pearson Intl

Sun 2/28

5:15 pm-7:43 pm

Nonstop5h 28m

$478

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 2/20

9:55 pm-11:14 am

1 stop10h 19m

Toronto Pearson Intl

Sat 2/27

6:30 am-10:55 am

1 stop7h 25m

$507

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sat 2/20

9:55 pm-11:14 am

1 stop10h 19m

Toronto Pearson Intl

Sat 2/27

12:15 pm-6:38 pm

1 stop9h 23m

$507

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Wed 11/11

8:40 am-9:09 pm

1 stop9h 29m

Toronto Pearson Intl

Wed 11/18

4:50 pm-9:57 pm

1 stop8h 07m

$544

SeattleToronto

SEA Seattle/Tacoma Intl - YYZ Toronto Pearson Intl

SEAYYZ

Seattle/Tacoma Intl

Sun 11/8

7:45 am-3:25 pm

Nonstop4h 40m

Toronto Pearson Intl

Thu 11/12

4:50 pm-9:57 pm

1 stop8h 07m

$562

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $261 to $691.
The lowest price recently found on this route was $362.

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

The cheapest month to fly to Toronto Pearson Intl Airport from Seattle is in January. Flight prices, which tend to average around $265, are often lower during this time because this is during the off-season. If you don’t want to visit Toronto Pearson Intl Airport in January, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $277.

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

The cheapest day to depart from Seattle to Toronto Pearson Intl Airport is on a Tuesday when prices can be found for as low as $565. The most expensive day to fly to Toronto Pearson Intl Airport is Sunday, with ticket prices averaging around $763.

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 $442 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 $318 on momondo.

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

There are 4 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

$172

Fastest flight time

4h 32m

Direct flights

Every day
The best one-way flight to Toronto Pearson Intl Airport from Seattle in the past 72 hours is $172. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is $362.
The fastest flight from Seattle to Toronto Pearson Intl Airport takes 4h 32m
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?

    Seattle/Tacoma Intl and Toronto Pearson Intl are 2053.4 mi apart from one another. Flights usually cover this in 4h 32m, depending on flying conditions and air traffic around both airports.

  • 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?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 you'll need for your trip to Toronto Pearson Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Toronto Pearson Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • 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 $132Free CancellationRating
7.1
11,817 reviews
Search Air Canada flights
DeltaPriceFrom $142Free CancellationRating
7.8
8,677 reviews
Search Delta flights
WestJetPriceFrom $240Free CancellationRating
7.2
3,445 reviews
Search WestJet flights
Alaska AirlinesPriceFrom $245Free CancellationRating
7.9
13,120 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $277Free CancellationRating
7.3
10,440 reviews
Search United 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 $528, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as $245 round-trip. Alaska Airlines has been scored 7.9/10 in 13,120 reviews.

  • United Airlines Flights From Seattle to Toronto Pearson Intl Airport

    The best United Airlines deal for Seattle to Toronto Pearson Intl Airport flight tickets found on momondo in the last 72 hours was $277, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $579 round-trip. United Airlines operates 8 flights out of Seattle into Toronto Pearson Intl Airport in an average week, so prices vary by time and availability. 10,440 United Airlines reviews by users on momondo have scored the airline at 7.3/10.

Traveling to a place near Toronto?

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

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?

All flight searches from Seattle to Toronto on momondo can be filtered to show those which offer flexible booking policies.

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?

Of course. momondo tracks the price of Seattle to Toronto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Toronto Pearson Intl Airport trip

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