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Cheap flights from Toronto to Seattle from C$ 185

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 5/2. 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 from Toronto to Seattle

The cheapest plane tickets from Toronto to Seattle found on KAYAK recently.
8:00 p.m. - 9:40 a.m.YYZ-SEA
16h 40m1 stop
5:16 p.m. - 9:11 p.m.SEA-YYZ
24h 55m2 stops
C$ 329
Find Deal
mer., 5 févr. - lun., 10 févr.
8:00 p.m. - 9:40 a.m.YYZ-SEA
16h 40m1 stop
5:16 p.m. - 6:45 a.m.SEA-YYZ
10h 29m1 stop
C$ 332
Find Deal
mer., 5 févr. - lun., 10 févr.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
C$ 346Alaska Airlines
Find Deal
mar., 11 févr. - mer., 19 févr.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
C$ 348Alaska Airlines
Find Deal
mar., 11 févr. - jeu., 20 févr.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 355Air Canada
Find Deal
ven., 21 févr. - mar., 25 févr.
7:55 a.m. - 2:21 p.m.YYZ-SEA
9h 26m1 stop
11:30 a.m. - 12:26 a.m.SEA-YYZ
9h 56m2 stops
C$ 356WestJet
Find Deal
mar., 11 févr. - mer., 19 févr.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 358Air Canada
Find Deal
jeu., 13 févr. - mar., 25 févr.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:55 p.m.SEA-YYZ
4h 50mdirect
C$ 368United Airlines
Find Deal
mer., 26 mars - dim., 30 mars
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
12:37 p.m. - 12:22 a.m.SEA-YYZ
8h 45m1 stop
C$ 377United Airlines
Find Deal
sam., 15 févr. - mer., 19 févr.
8:00 p.m. - 1:08 p.m.YYZ-SEA
20h 08m1 stop
7:05 a.m. - 5:22 p.m.SEA-YYZ
7h 17m1 stop
C$ 400WestJet
Find Deal
sam., 26 avr. - mar., 29 avr.
8:00 p.m. - 9:40 a.m.YYZ-SEA
16h 40m1 stop
C$ 185
Find Deal
mer., 5 févr.
8:00 p.m. - 9:40 a.m.YYZ-SEA
16h 40m1 stop
C$ 188
Find Deal
mer., 5 févr.
12:25 p.m. - 7:37 p.m.YTZ-SEA
10h 12m1 stop
C$ 207Air Canada
Find Deal
mar., 6 mai
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
C$ 207Alaska Airlines
Find Deal
mer., 5 févr.
1:30 p.m. - 8:28 p.m.YYZ-SEA
9h 58m1 stop
C$ 208WestJet
Find Deal
mar., 6 mai
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
C$ 211Alaska Airlines
Find Deal
lun., 10 févr.
9:00 a.m. - 8:28 p.m.YYZ-SEA
14h 28m2 stops
C$ 214WestJet
Find Deal
lun., 5 mai
12:25 p.m. - 7:37 p.m.YTZ-SEA
10h 12m1 stop
C$ 216Air Canada
Find Deal
lun., 5 mai
12:25 p.m. - 10:07 p.m.YYZ-SEA
12h 42m2 stops
C$ 234United Airlines
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mer., 5 févr.
12:20 p.m. - 9:15 p.m.YYZ-SEA
11h 55m2 stops
C$ 246United Airlines
Find Deal
mar., 15 avr.
7:55 a.m. - 2:21 p.m.YYZ-SEA
9h 26m1 stop
11:30 a.m. - 11:11 p.m.SEA-YYZ
8h 41m2 stops
C$ 483WestJet
Find Deal
mar., 21 janv. - ven., 24 janv.
7:55 a.m. - 2:21 p.m.YYZ-SEA
9h 26m1 stop
3:15 p.m. - 6:00 a.m.SEA-YYZ
11h 45m2 stops
C$ 522WestJet
Find Deal
mar., 21 janv. - mar., 28 janv.
5:10 p.m. - 11:31 p.m.YYZ-SEA
9h 21m1 stop
10:33 a.m. - 10:43 p.m.SEA-YYZ
9h 10m1 stop
C$ 931American Airlines
Find Deal
ven., 17 janv. - ven., 24 janv.
11:31 a.m. - 4:55 p.m.YYZ-SEA
8h 24m1 stop
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
C$ 1,028Alaska Airlines
Find Deal
ven., 17 janv. - mar., 21 janv.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
C$ 1,125Alaska Airlines
Find Deal
dim., 19 janv. - ven., 24 janv.
6:15 a.m. - 12:42 p.m.YYZ-SEA
9h 27m1 stop
12:45 a.m. - 1:00 p.m.SEA-YYZ
9h 15m1 stop
C$ 1,135American Airlines
Find Deal
ven., 17 janv. - dim., 19 janv.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 1,161United Airlines
Find Deal
dim., 19 janv. - ven., 24 janv.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 1,174Air Canada
Find Deal
ven., 17 janv. - ven., 24 janv.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 1,210United Airlines
Find Deal
ven., 17 janv. - mar., 21 janv.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 1,243Air Canada
Find Deal
ven., 17 janv. - dim., 19 janv.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
C$ 346Alaska Airlines
Find Deal
mar., 11 févr. - mer., 19 févr.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
C$ 348Alaska Airlines
Find Deal
mar., 11 févr. - jeu., 20 févr.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:18 a.m. - 2:55 p.m.SEA-YYZ
4h 37mdirect
C$ 351Alaska Airlines
Find Deal
lun., 10 févr. - lun., 17 févr.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:17 a.m. - 2:55 p.m.SEA-YYZ
4h 38mdirect
C$ 354Alaska Airlines
Find Deal
lun., 10 févr. - mar., 11 févr.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 358Air Canada
Find Deal
jeu., 13 févr. - mar., 25 févr.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 362United Airlines
Find Deal
jeu., 13 févr. - dim., 23 févr.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 367Air Canada
Find Deal
jeu., 13 févr. - lun., 17 févr.
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 368United Airlines
Find Deal
mer., 26 mars - sam., 29 mars
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 369
Find Deal
jeu., 13 févr. - lun., 17 févr.
4:20 p.m. - 6:44 p.m.YYZ-SEA
5h 24mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 476
Find Deal
dim., 2 mars - dim., 9 mars

Alaska Airlines flights from Toronto to Seattle

Our best Alaska Airlines deals on Toronto to Seattle flight tickets
Alaska Airlines
11 Feb
YYZ4:20 p.m.Toronto Pearson Intl
5h 23m
SEA6:43 p.m.Seattle/Tacoma Intl
19 Feb
SEA7:18 a.m.Seattle/Tacoma Intl
4h 37m
YYZ2:55 p.m.Toronto Pearson Intl
Alaska Airlines
11 Feb
YYZ4:20 p.m.Toronto Pearson Intl
5h 23m
SEA6:43 p.m.Seattle/Tacoma Intl
20 Feb
SEA7:18 a.m.Seattle/Tacoma Intl
4h 37m
YYZ2:55 p.m.Toronto Pearson Intl
Alaska Airlines
10 Feb
YYZ4:20 p.m.Toronto Pearson Intl
5h 23m
SEA6:43 p.m.Seattle/Tacoma Intl
17 Feb
SEA7:18 a.m.Seattle/Tacoma Intl
4h 37m
YYZ2:55 p.m.Toronto Pearson Intl

WestJet flights from Toronto to Seattle

Our best WestJet deals on Toronto to Seattle flight tickets
WestJet
11 Feb
YYZ7:55 a.m.Toronto Pearson Intl
9h 26m
1 stop
SEA2:21 p.m.Seattle/Tacoma Intl
19 Feb
SEA11:30 a.m.Seattle/Tacoma Intl
9h 56m
2 stops
YYZ12:26 a.m.Toronto Pearson Intl
WestJet
26 Apr
YYZ8:00 p.m.Toronto Pearson Intl
20h 08m
1 stop
SEA1:08 p.m.Seattle/Tacoma Intl
29 Apr
SEA7:05 a.m.Seattle/Tacoma Intl
7h 17m
1 stop
YYZ5:22 p.m.Toronto Pearson Intl
WestJet
12 Feb
YYZ7:40 a.m.Toronto Pearson Intl
9h 41m
1 stop
SEA2:21 p.m.Seattle/Tacoma Intl
25 Feb
SEA11:30 a.m.Seattle/Tacoma Intl
9h 03m
2 stops
YYZ11:33 p.m.Toronto 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 typical price of a round-trip flight between Toronto and Seattle?

What is the cheapest month to fly to Seattle?

If you aren’t able to travel to Seattle during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 412.

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

Our data shows that Tuesday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 584. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 698. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

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

Our most recent data shows that the best time of day to fly to Seattle is at noon. Flights from Toronto to Seattle during this time can be as low as C$ 566. Flights in the morning are often more expensive with an average ticket price of C$ 654.

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 7 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 603 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Toronto for as low as C$ 504 on momondo.

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.

How have Toronto to Seattle flight prices changed over time?

As of January 2025, prices for Toronto to Seattle flights are approximately 34% 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

C$ 185

Fastest flight time

5h 14m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Toronto in the past 72 hours is C$ 185. The best round-trip flight deal from Toronto to Seattle found on momondo in the last 72 hours is C$ 329.
The fastest flight from Toronto to Seattle takes 5h 14m
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 3323.4 km. A reasonable flight in good conditions will take 5h 20m.

  • 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 a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto to Seattle/Tacoma Intl Airport.

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

    The travel and health documents required for your trip to Seattle/Tacoma 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 Seattle/Tacoma 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 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
WestJetPriceFrom C$ 307Free CancellationRating
7.2
2,824 reviews
Search WestJet flights
Alaska AirlinesPriceFrom C$ 356Free CancellationRating
8.0
9,681 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom C$ 392Free CancellationRating
7.0
8,587 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 393Free CancellationRating
7.4
8,965 reviews
Search United Airlines flights
DeltaPriceFrom C$ 420Free CancellationRating
8.0
8,511 reviews
Search Delta flights
American AirlinesPriceFrom C$ 560Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Alaska Airlines Flights From Toronto to Seattle

    Alaska Airlines operates around 1 flight from Toronto to Seattle every week. The average price of these flights found in the last 72 hours has been C$ 411, but momondo users have found Alaska Airlines deals from Toronto to Seattle from as low as C$ 248 round-trip. Alaska Airlines has been scored 8.0/10 in 9,681 reviews.

  • United Airlines Flights From Toronto to Seattle

    United Airlines is also a popular choice for this route. United Airlines flight deals for Toronto to Seattle start from as low as C$ 273 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around C$ 510. United Airlines operates 7 flights to Seattle from Toronto in an average week. Users have rated it 7.4/10 across 8,964 reviews.


Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Marysville
SeaTac
Lynnwood
Olympia
Tacoma
Kent
Kirkland
Tukwila
Ocean Shores
Redmond
Lakewood
Shoreline
Renton
Centralia
Ellensburg
Mukilteo
Cle Elum
Gig Harbor
Poulsbo

Why use momondo?

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

It is quick and easy to find Toronto to Seattle flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seattle that suits you.

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?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Toronto to Seattle.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Toronto and alert you when they change.


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