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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 8/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

WestJet Logo
7:05 am - 5:22 pmSEA-YYZ
7h 17m1 stop
WestJet Logo
12:00 pm - 8:29 pmYYZ-SEA
11h 29m2 stops
$225WestJet
Find Deal
Tue, Sep 16 - Wed, Sep 24
WestJet Logo
7:35 pm - 6:52 amSEA-YYZ
8h 17m1 stop
WestJet Logo
9:00 am - 6:38 pmYYZ-SEA
12h 38m2 stops
$227WestJet
Find Deal
Mon, Aug 4 - Wed, Aug 13
WestJet Logo
2:05 pm - 12:22 amSEA-YYZ
7h 17m1 stop
WestJet Logo
6:45 am - 12:33 pmYYZ-SEA
8h 48m1 stop
$228WestJet
Find Deal
Tue, Sep 16 - Sun, Sep 28
WestJet Logo
1:50 pm - 12:24 amSEA-YYZ
7h 34m1 stop
WestJet Logo
8:00 am - 12:59 pmYYZ-SEA
7h 59m1 stop
$229WestJet
Find Deal
Thu, Aug 28 - Sun, Sep 7
 Logo
7:16 am - 3:00 pmSEA-YYZ
4h 44mnonstop
 Logo
3:00 pm - 8:29 pmYYZ-SEA
8h 29m1 stop
Fri, Sep 19 - Fri, Sep 26
 Logo
7:18 am - 3:00 pmSEA-YYZ
4h 42mnonstop
 Logo
8:00 am - 12:59 pmYYZ-SEA
7h 59m1 stop
Tue, Oct 14 - Sun, Oct 19
Air Canada Logo
2:55 pm - 5:34 amSEA-YYZ
11h 39m2 stops
Air Canada Logo
3:00 pm - 8:41 pmYYZ-SEA
8h 41m1 stop
$268Air Canada
Find Deal
Thu, Aug 14 - Thu, Aug 21
Alaska Airlines Logo
7:16 am - 3:00 pmSEA-YYZ
4h 44mnonstop
Alaska Airlines Logo
4:45 pm - 7:08 pmYYZ-SEA
5h 23mnonstop
$271Alaska Airlines
Find Deal
Tue, Sep 16 - Wed, Sep 24
United Airlines Logo
12:00 pm - 7:44 pmSEA-YYZ
4h 44mnonstop
United Airlines Logo
10:15 am - 3:32 pmYYZ-SEA
8h 17m1 stop
$286United Airlines
Find Deal
Wed, Oct 8 - Sat, Oct 11
Air Canada Logo
10:00 am - 12:10 amSEA-YYZ
11h 10m2 stops
Air Canada Logo
6:15 am - 2:16 pmYYZ-SEA
11h 01m2 stops
$287Air Canada
Find Deal
Mon, Sep 29 - Mon, Oct 6

WestJet flights from Seattle to Toronto Pearson Intl Airport

Our best WestJet deals on Seattle to Toronto Pearson Intl Airport flight tickets
WestJet
Sep 16
SEA7:05 amSeattle/Tacoma Intl
7h 17m
1 stop
YYZ5:22 pmToronto Pearson Intl
Sep 24
YYZ12:00 pmToronto Pearson Intl
11h 29m
2 stops
SEA8:29 pmSeattle/Tacoma Intl
WestJet
Aug 4
SEA7:35 pmSeattle/Tacoma Intl
8h 17m
1 stop
YYZ6:52 amToronto Pearson Intl
Aug 13
YYZ9:00 amToronto Pearson Intl
12h 38m
2 stops
SEA6:38 pmSeattle/Tacoma Intl
WestJet
Sep 16
SEA2:05 pmSeattle/Tacoma Intl
7h 17m
1 stop
YYZ12:22 amToronto Pearson Intl
Sep 28
YYZ6:45 amToronto Pearson Intl
8h 48m
1 stop
SEA12:33 pmSeattle/Tacoma Intl

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
Sep 16
SEA7:16 amSeattle/Tacoma Intl
4h 44m
YYZ3:00 pmToronto Pearson Intl
Sep 24
YYZ4:45 pmToronto Pearson Intl
5h 23m
SEA7:08 pmSeattle/Tacoma Intl
Alaska Airlines
Jul 10
SEA7:17 amSeattle/Tacoma Intl
4h 43m
YYZ3:00 pmToronto Pearson Intl
Jul 16
YYZ4:45 pmToronto Pearson Intl
5h 24m
SEA7:09 pmSeattle/Tacoma Intl
Alaska Airlines
Jul 14
SEA7:17 amSeattle/Tacoma Intl
4h 43m
YYZ3:00 pmToronto Pearson Intl
Jul 19
YYZ4:45 pmToronto Pearson Intl
5h 24m
SEA7:09 pmSeattle/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?

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 March to fly from Seattle, when ticket prices are also cheap, with an average price of $316.

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 $550. The most expensive day to fly to Toronto Pearson Intl Airport is Sunday, with ticket prices averaging around $682.

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 morning are often more expensive with an average ticket price of $619.

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 $424 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.

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

You could potentially save up to 8% on your flight if you consider stops on a Seattle to Toronto Pearson Intl Airport flight.

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

As of July 2025, prices for Seattle to Toronto Pearson Intl Airport flights are approximately 38% 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

$101

Fastest flight time

4h 40m

Direct flights

Every day
The best one-way flight to Toronto Pearson Intl Airport from Seattle in the past 72 hours is $101. The best round-trip flight deal from Seattle to Toronto Pearson Intl Airport found on momondo in the last 72 hours is $225.
The fastest flight from Seattle to Toronto Pearson Intl Airport takes 4h 40m
Direct flights go from Seattle to Toronto Pearson Intl Airport every day.

  • 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 42m, 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 $135Free CancellationRating
7.1
9,660 reviews
Search Air Canada flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
8,858 reviews
Search United Airlines flights
DeltaPriceFrom $182Free CancellationRating
8.0
7,974 reviews
Search Delta flights
WestJetPriceFrom $237Free CancellationRating
7.2
2,909 reviews
Search WestJet flights
Alaska AirlinesPriceFrom $281Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines 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 $487, but momondo users have found Alaska Airlines deals from Seattle to Toronto Pearson Intl Airport from as low as $281 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 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 $158, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $414 round-trip. United Airlines operates 12 flights out of Seattle into Toronto Pearson Intl Airport in an average week, so prices vary by time and availability. 8,858 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
Brampton
Niagara-on-the-Lake
Markham
Vaughan
Oakville
Richmond Hill
Burlington
Kitchener
St. Catharines
Barrie
Cambridge
Guelph
Milton
Brantford
Oshawa
Whitby
Orillia
Pickering

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.


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1 adult
Sun 7/6
Sun 7/13

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