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Cheap flights from Toronto to Seattle from $136

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto to Seattle departing on 1/8. 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 Toronto to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Toronto to Seattle 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 Toronto to Seattle.

Cheap last minute flights

Planning a quick getaway from Toronto to Seattle? 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 Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Toronto to Seattle

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

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
7:55 am - 2:21 pmYYZ-SEA
9h 26m1 stop
3:15 pm - 6:00 amSEA-YYZ
11h 45m2 stops
$241WestJet
Find Deal
Tue, Jan 14 - Tue, Jan 21
7:55 am - 2:21 pmYYZ-SEA
9h 26m1 stop
3:15 pm - 6:00 amSEA-YYZ
11h 45m2 stops
$243WestJet
Find Deal
Tue, Jan 14 - Thu, Jan 16
4:10 pm - 6:34 pmYYZ-SEA
5h 24mnonstop
7:18 am - 2:55 pmSEA-YYZ
4h 37mnonstop
$245Alaska Airlines
Find Deal
Wed, Feb 19 - Wed, Feb 26
8:00 am - 2:30 pmYYZ-SEA
9h 30m1 stop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$250Air Canada
Find Deal
Tue, Feb 18 - Sun, Feb 23
8:00 am - 2:25 pmYYZ-SEA
9h 25m1 stop
7:05 pm - 6:09 amSEA-YYZ
8h 04m1 stop
$255Air Canada
Find Deal
Sat, Jan 18 - Tue, Jan 21
1:20 pm - 11:00 pmYYZ-SEA
12h 40m1 stop
11:05 pm - 11:56 amSEA-YYZ
9h 51m1 stop
$259Delta
Find Deal
Sun, Feb 16 - Mon, Feb 24
4:10 pm - 6:34 pmYYZ-SEA
5h 24mnonstop
7:18 am - 2:55 pmSEA-YYZ
4h 37mnonstop
$263Alaska Airlines
Find Deal
Tue, Feb 18 - Thu, Feb 27
12:20 pm - 10:07 pmYYZ-SEA
12h 47m1 stop
11:05 pm - 9:20 amSEA-YYZ
7h 15m1 stop
$264Delta
Find Deal
Thu, Jan 23 - Mon, Jan 27
11:46 am - 7:00 pmYYZ-SEA
10h 14m1 stop
12:45 am - 4:15 pmSEA-YYZ
12h 30m1 stop
$320American Airlines
Find Deal
Thu, Jan 23 - Sun, Jan 26
6:14 am - 1:05 pmYYZ-SEA
9h 51m1 stop
11:59 pm - 10:51 amSEA-YYZ
7h 52m1 stop
$368American Airlines
Find Deal
Fri, Feb 21 - Fri, Feb 21
8:00 pm - 9:47 amYYZ-SEA
16h 47m1 stop
Wed, Jan 8
6:30 am - 12:19 amYYZ-SEA
20h 49m2 stops
Tue, Jan 14
7:55 am - 2:21 pmYYZ-SEA
9h 26m1 stop
$140WestJet
Find Deal
Mon, Jan 27
7:55 am - 2:21 pmYYZ-SEA
9h 26m1 stop
$142WestJet
Find Deal
Mon, Feb 10
4:20 pm - 6:43 pmYYZ-SEA
5h 23mnonstop
$146Alaska Airlines
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Tue, Jan 14
5:55 pm - 11:59 pmYYZ-SEA
9h 04m1 stop
$159Delta
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Sat, May 10
4:20 pm - 6:43 pmYYZ-SEA
5h 23mnonstop
$165Alaska Airlines
Find Deal
Sun, Jan 12
5:55 pm - 11:59 pmYYZ-SEA
9h 04m1 stop
$177Delta
Find Deal
Sat, May 17
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
$285Air Canada
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Fri, Mar 14
6:55 pm - 9:20 pmYYZ-SEA
5h 25mnonstop
$647Air Canada
Find Deal
Tue, Dec 31
5:14 pm - 12:57 amYYZ-SEA
10h 43m1 stop
10:18 pm - 6:26 pmSEA-YYZ
17h 08m1 stop
$510American Airlines
Find Deal
Mon, Dec 23 - Tue, Jan 21
5:14 pm - 11:06 pmYYZ-SEA
8h 52m1 stop
10:18 pm - 11:45 amSEA-YYZ
10h 27m2 stops
$520American Airlines
Find Deal
Mon, Dec 23 - Tue, Jan 21
7:00 pm - 2:21 pmYYZ-SEA
22h 21m2 stops
3:15 pm - 6:00 amSEA-YYZ
11h 45m2 stops
$545WestJet
Find Deal
Mon, Dec 23 - Tue, Jan 21
4:22 pm - 6:42 pmYYZ-SEA
5h 20mnonstop
7:27 am - 3:05 pmSEA-YYZ
4h 38mnonstop
$551Alaska Airlines
Find Deal
Mon, Dec 23 - Tue, Jan 21
1:30 pm - 8:50 pmYYZ-SEA
10h 20m1 stop
9:25 am - 8:54 pmSEA-YYZ
8h 29m1 stop
$605Delta
Find Deal
Mon, Dec 23 - Wed, Jan 1
10:30 am - 5:00 pmYYZ-SEA
9h 30m1 stop
3:15 pm - 12:38 pmSEA-YYZ
18h 23m1 stop
$608WestJet
Find Deal
Mon, Dec 23 - Tue, Dec 31
4:22 pm - 6:42 pmYYZ-SEA
5h 20mnonstop
7:26 am - 3:07 pmSEA-YYZ
4h 41mnonstop
$647Alaska Airlines
Find Deal
Mon, Dec 23 - Mon, Dec 30
7:00 am - 12:45 pmYYZ-SEA
8h 45m1 stop
9:25 am - 8:55 pmSEA-YYZ
8h 30m1 stop
$667Delta
Find Deal
Thu, Dec 19 - Tue, Dec 31
8:20 pm - 9:50 amYYZ-SEA
16h 30m1 stop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$769Air Canada
Find Deal
Sun, Dec 22 - Mon, Jan 6
8:45 am - 6:25 pmYYZ-SEA
12h 40m1 stop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$817Air Canada
Find Deal
Mon, Dec 23 - Mon, Jan 6
4:10 pm - 6:34 pmYYZ-SEA
5h 24mnonstop
7:18 am - 2:55 pmSEA-YYZ
4h 37mnonstop
$245Alaska Airlines
Find Deal
Wed, Feb 19 - Wed, Feb 26
4:30 pm - 6:50 pmYYZ-SEA
5h 20mnonstop
7:00 am - 2:40 pmSEA-YYZ
4h 40mnonstop
$259Alaska Airlines
Find Deal
Tue, Apr 15 - Mon, Apr 21
4:10 pm - 6:34 pmYYZ-SEA
5h 24mnonstop
7:18 am - 2:55 pmSEA-YYZ
4h 37mnonstop
$263Alaska Airlines
Find Deal
Sun, Feb 16 - Mon, Feb 24
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$267Air Canada
Find Deal
Fri, Jan 24 - Fri, Jan 31
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$268United Airlines
Find Deal
Tue, Jan 14 - Tue, Jan 21
4:30 pm - 6:50 pmYYZ-SEA
5h 20mnonstop
7:00 am - 2:40 pmSEA-YYZ
4h 40mnonstop
$283Alaska Airlines
Find Deal
Thu, Apr 3 - Mon, Apr 7
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$382Air Canada
Find Deal
Sat, Jan 18 - Tue, Jan 21
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$492United Airlines
Find Deal
Thu, Jan 9 - Wed, Jan 15
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$1,401
Find Deal
Fri, Jan 3 - Sun, Jan 5
7:05 pm - 9:30 pmYYZ-SEA
5h 25mnonstop
6:05 am - 1:50 pmSEA-YYZ
4h 45mnonstop
$1,459
Find Deal
Fri, Jan 3 - Sun, Jan 5

United Airlines flights from Toronto to Seattle

Our best United Airlines deals on Toronto to Seattle flight tickets
United Airlines
Feb 15
YYZ7:05 pmToronto Pearson Intl
5h 25m
SEA9:30 pmSeattle/Tacoma Intl
Feb 25
SEA5:02 amSeattle/Tacoma Intl
7h 00m
1 stop
YYZ3:02 pmToronto Pearson Intl
United Airlines
Feb 16
YYZ2:00 pmToronto Pearson Intl
11h 42m
1 stop
SEA10:42 pmSeattle/Tacoma Intl
Feb 27
SEA6:05 amSeattle/Tacoma Intl
4h 45m
YYZ1:50 pmToronto Pearson Intl
United Airlines
Mar 8
YYZ12:25 pmToronto Pearson Intl
12h 35m
2 stops
SEA10:00 pmSeattle/Tacoma Intl
Mar 18
SEA6:05 amSeattle/Tacoma Intl
4h 45m
YYZ1:50 pmToronto Pearson Intl

WestJet flights from Toronto to Seattle

Our best WestJet deals on Toronto to Seattle flight tickets
WestJet
Jan 14
YYZ7:55 amToronto Pearson Intl
9h 26m
1 stop
SEA2:21 pmSeattle/Tacoma Intl
Jan 21
SEA3:15 pmSeattle/Tacoma Intl
11h 45m
2 stops
YYZ6:00 amToronto Pearson Intl
WestJet
Jan 14
YYZ7:55 amToronto Pearson Intl
9h 26m
1 stop
SEA2:21 pmSeattle/Tacoma Intl
Jan 16
SEA3:15 pmSeattle/Tacoma Intl
11h 45m
2 stops
YYZ6:00 amToronto Pearson Intl
WestJet
Feb 6
YYZ7:55 amToronto Pearson Intl
9h 26m
1 stop
SEA2:21 pmSeattle/Tacoma Intl
Feb 9
SEA3:15 pmSeattle/Tacoma Intl
11h 43m
2 stops
YYZ5:58 amToronto Pearson Intl

See travel insights to Seattle from

How to get the cheapest flight ticket from Toronto to Seattle

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 Seattle?

In general, November is the cheapest month to fly from Toronto to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $343. If you don’t want to visit Seattle in November, then you should wait until October to fly from Toronto, when ticket prices are also cheap, with an average price of $360.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Toronto is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $455. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Toronto because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $522.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Toronto in the morning is the least expensive time of day to depart. momondo users have found prices as low as $483 when looking at flights departing in the morning. Flights to Seattle are more costly at noon, with an average ticket price of $539. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Toronto when booking 58 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $452 when searching 58 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $285 in the past 72 hours.

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

There are 4 cabin classes available to choose from on Toronto to Seattle/Tacoma 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 Toronto to Seattle flights?

You could potentially save up to 6% on your flight if you consider stops on a Toronto to Seattle flight.

How have Toronto to Seattle flight prices changed over time?

As of December 2024, prices for Toronto to Seattle flights are approximately 28% cheaper when compared to flights at the same time last year.

When to book flights from Toronto to Seattle

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

Cheap Toronto to Seattle (YTO to SEA) flight deals and tips

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

Best Price Found

$136

Fastest flight time

5h 20m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Toronto in the past 72 hours is $136. The best round-trip flight deal from Toronto to Seattle found on momondo in the last 72 hours is $241.
The fastest flight from Toronto to Seattle takes 5h 20m
Direct flights go from Toronto to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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

    The distance between Toronto and Seattle/Tacoma Intl is about 2065.1 mi. Typically, this will take 5h 20m by plane in normal conditions.

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

    Prices for flights from Toronto to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

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

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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


Best airlines flying from Toronto to Seattle

Compare and see reviews for airlines that fly from Toronto to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $139Free CancellationRating
7.0
8,382 reviews
Search Air Canada flights
WestJetPriceFrom $163Free CancellationRating
7.2
2,818 reviews
Search WestJet flights
Alaska AirlinesPriceFrom $246Free CancellationRating
8.0
9,552 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
9,059 reviews
Search United Airlines flights
DeltaPriceFrom $292Free CancellationRating
8.0
8,604 reviews
Search Delta flights
American AirlinesPriceFrom $402Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Alaska Airlines Flights From Toronto to Seattle

    Alaska Airlines is one of the most popular airlines flying from Toronto to Seattle, operating 1 flight/week on average for this route. A good Alaska Airlines flight deal for Toronto to Seattle starts from $246 round-trip, up to an average price of $422. Our users have rated Alaska Airlines at 8.0/10.

  • United Airlines Flights From Toronto to Seattle

    The best United Airlines deal for Toronto to Seattle flight tickets found on momondo in the last 72 hours was $263, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $545 round-trip. United Airlines operates 2 flights out of Toronto into Seattle in an average week, so prices vary by time and availability. 9,059 United Airlines reviews by users on momondo have scored the airline at 7.4/10.


Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Toronto to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Toronto to Seattle 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 Toronto to Seattle?

Once you have performed a search for Toronto to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Toronto to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.


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