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Cheap flights from Seattle to Toronto from $101

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 departing on 12/6. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
7:57 am - 3:35 pmSEA-YYZ
4h 38mnonstop
Alaska Airlines Logo
4:45 pm - 7:18 pmYYZ-SEA
5h 33mnonstop
$224Alaska Airlines
Find Deal
sáb, nov 29 - sáb, dez 6
WestJet Logo
3:15 pm - 5:58 amSEA-YYZ
11h 43m2 stops
WestJet Logo
7:00 am - 2:20 pmYYZ-SEA
10h 20m1 stop
$227WestJet
Find Deal
qua, dez 3 - qua, dez 10
WestJet Logo
3:15 pm - 5:58 amSEA-YYZ
11h 43m2 stops
WestJet Logo
7:45 am - 2:20 pmYYZ-SEA
9h 35m1 stop
$234WestJet
Find Deal
qua, dez 3 - ter, dez 9
WestJet Logo
3:10 pm - 5:58 amSEA-YYZ
11h 48m2 stops
WestJet Logo
7:45 am - 2:20 pmYYZ-SEA
9h 35m1 stop
$236WestJet
Find Deal
qui, jan 15 - seg, jan 19
Multiple Airlines Logo
7:55 am - 3:35 pmSEA-YYZ
4h 40mnonstop
Multiple Airlines Logo
7:45 am - 2:20 pmYYZ-SEA
9h 35m1 stop
$238Multiple Airlines
Find Deal
ter, dez 2 - dom, dez 7
Multiple Airlines Logo
8:00 am - 3:35 pmSEA-YYZ
4h 35mnonstop
Multiple Airlines Logo
7:45 am - 2:19 pmYYZ-SEA
9h 34m1 stop
$239Multiple Airlines
Find Deal
sáb, fev 28 - qua, mar 11
WestJet Logo
11:55 am - 11:39 pmSEA-YYZ
8h 44m2 stops
WestJet Logo
10:15 pm - 10:22 amYYZ-SEA
15h 07m2 stops
$240WestJet
Find Deal
sáb, nov 29 - sáb, dez 6
Alaska Airlines Logo
7:55 am - 3:35 pmSEA-YYZ
4h 40mnonstop
Alaska Airlines Logo
4:45 pm - 7:18 pmYYZ-SEA
5h 33mnonstop
$251Alaska Airlines
Find Deal
qua, dez 3 - qua, dez 10
Air Canada Logo
8:10 am - 3:53 pmSEA-YYZ
4h 43mnonstop
Air Canada Logo
7:50 pm - 10:16 pmYYZ-SEA
5h 26mnonstop
$270Air Canada
Find Deal
sáb, nov 29 - sáb, dez 6
Air Canada Logo
8:00 pm - 6:29 amSEA-YYZ
7h 29m1 stop
Air Canada Logo
7:50 pm - 10:16 pmYYZ-SEA
5h 26mnonstop
$271Air Canada
Find Deal
sáb, nov 15 - sáb, nov 22

Alaska Airlines flights from Seattle to Toronto Pearson Intl Airport

Our best Alaska Airlines deals on Seattle to Toronto Pearson Intl Airport flight tickets
Alaska Airlines
Nov 29
SEA7:57 amSeattle/Tacoma Intl
4h 38m
YYZ3:35 pmToronto Pearson Intl
Dec 6
YYZ4:45 pmToronto Pearson Intl
5h 33m
SEA7:18 pmSeattle/Tacoma Intl
$224
Find similar
Alaska Airlines
Dec 3
SEA7:55 amSeattle/Tacoma Intl
4h 40m
YYZ3:35 pmToronto Pearson Intl
Dec 10
YYZ4:45 pmToronto Pearson Intl
5h 33m
SEA7:18 pmSeattle/Tacoma Intl
$251
Find similar
Alaska Airlines
Nov 19
SEA7:55 amSeattle/Tacoma Intl
4h 40m
YYZ3:35 pmToronto Pearson Intl
Nov 20
YYZ4:45 pmToronto Pearson Intl
5h 20m
SEA7:05 pmSeattle/Tacoma Intl
$262
Find similar

WestJet flights from Seattle to Toronto Pearson Intl Airport

Our best WestJet deals on Seattle to Toronto Pearson Intl Airport flight tickets
WestJet
Dec 3
SEA3:15 pmSeattle/Tacoma Intl
11h 43m
2 stops
YYZ5:58 amToronto Pearson Intl
Dec 10
YYZ7:00 amToronto Pearson Intl
10h 20m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
$227
Find similar
WestJet
Dec 3
SEA3:15 pmSeattle/Tacoma Intl
11h 43m
2 stops
YYZ5:58 amToronto Pearson Intl
Dec 9
YYZ7:45 amToronto Pearson Intl
9h 35m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
$234
Find similar
WestJet
Jan 15
SEA3:10 pmSeattle/Tacoma Intl
11h 48m
2 stops
YYZ5:58 amToronto Pearson Intl
Jan 19
YYZ7:45 amToronto Pearson Intl
9h 35m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
$236
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Toronto Pearson Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated outubro 27, 2025.
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

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

sáb 11/29

7:57 am-3:35 pm

Nonstop4h 38m

Toronto Pearson Intl

sáb 12/6

4:45 pm-7:18 pm

Nonstop5h 33m

$224

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

qua 12/3

3:15 pm-5:58 am

2 stops11h 43m

Toronto Pearson Intl

qua 12/10

7:00 am-2:20 pm

1 stop10h 20m

$227

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

qua 12/3

3:15 pm-5:58 am

2 stops11h 43m

Toronto Pearson Intl

ter 12/9

7:45 am-2:20 pm

1 stop9h 35m

$234

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

qui 1/15

3:10 pm-5:58 am

2 stops11h 48m

Toronto Pearson Intl

seg 1/19

7:45 am-2:20 pm

1 stop9h 35m

$236

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

ter 12/2

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

dom 12/7

7:45 am-2:20 pm

1 stop9h 35m

$238

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

sáb 2/28

8:00 am-3:35 pm

Nonstop4h 35m

Toronto Pearson Intl

qua 3/11

7:45 am-2:19 pm

1 stop9h 34m

$239

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

sáb 11/29

11:55 am-11:39 pm

2 stops8h 44m

Toronto Pearson Intl

sáb 12/6

10:15 pm-10:22 am

2 stops15h 07m

$240

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

qua 12/3

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

qua 12/10

4:45 pm-7:18 pm

Nonstop5h 33m

$251

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

sáb 11/29

8:10 am-3:53 pm

Nonstop4h 43m

Toronto Pearson Intl

sáb 12/6

7:50 pm-10:16 pm

Nonstop5h 26m

$270

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

sáb 11/15

8:00 pm-6:29 am

1 stop7h 29m

Toronto Pearson Intl

sáb 11/22

7:50 pm-10:16 pm

Nonstop5h 26m

$271

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?

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 $304, 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 $321.

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 $555. The most expensive day to fly to Toronto Pearson Intl Airport is Saturday, with ticket prices averaging around $718.

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

Flying to Toronto Pearson Intl Airport from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $284 when looking at flights departing in the afternoon. Flights in the evening are often more expensive with an average ticket price of $1,067.

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 weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around $415 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 $292 on momondo.

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

There are 4 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 October 2025, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 48% 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

$262

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 $262. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is $342.
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.
Search flight deals

  • 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 35m, 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 $157Free CancellationRating
7.1
10,367 reviews
Search Air Canada flights
DeltaPriceFrom $186Free CancellationRating
7.9
7,996 reviews
Search Delta flights
WestJetPriceFrom $226Free CancellationRating
7.2
3,147 reviews
Search WestJet flights
Alaska AirlinesPriceFrom $276Free CancellationRating
8.0
11,193 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $301Free CancellationRating
7.4
8,999 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Seattle to Toronto Pearson Intl Airport

    Alaska Airlines operates around 7 flights from Seattle to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been $487, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as $276 round-trip. Alaska Airlines has been scored 8.0/10 in 11,193 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 $301, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $385 round-trip. United Airlines operates 6 flights out of Seattle into Toronto Pearson Intl Airport in an average week, so prices vary by time and availability. 8,999 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

Traveling to a place near Toronto?

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

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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