Cheap flights from Toronto to Seattle from $175

Round-trip
1 adult
Economy
From?
To?
Thu 10/21
Thu 10/28

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Toronto to Seattle.
View current United States travel restrictions

Flight information for Toronto to Seattle
(YTO to SEA)

Find info about flight duration, direct flights, and airports for your flight from Toronto to Seattle
Best Price Found$355The best flight deal from Toronto to Seattle found on momondo in the last 72 hours is $355
Fastest flight time5h 15mThe fastest flight from Toronto to Seattle takes 5h 15m
Direct flightsNoneThere are no direct flights from Toronto to Seattle. Popular non-direct routes for this connection are Toronto Island Airport - Seattle/Tacoma Intl Airport, Toronto Kitchener-Waterloo Airport - Seattle/Tacoma Intl Airport and Toronto Pearson Intl Airport - Seattle/Tacoma Intl Airport.
Airports in Seattle3 airportsThere are 3 airports near Seattle: Seattle King County/Boeing (BFI), Seattle Lake Union Spb (LKE), Seattle/Tacoma Intl (SEA)

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 from Toronto to Seattle?

January

The cheapest time of year to fly to Seattle from Toronto is January. Most expensive is December

What is the cheapest day to depart Toronto for Seattle?

Tuesday

The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Toronto to Seattle?

at noon

Toronto to Seattle flights are approximately 21% more expensive in the evening than at noon

What is the cheapest airline that flies to Seattle from Toronto?

WestJet

Air Canada, American Airlines, and Delta are the most popular carriers operating from Toronto to Seattle

What is the cheapest Toronto to Seattle flight route?

Toronto Kitchener-Waterloo - Seattle/Tacoma Intl

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

How far in advance should you book Toronto to Seattle flights?

45 days before

The cheapest time to buy a flight from Toronto to Seattle is approximately 45 days to departure


Easily compare round-trip flights from Toronto to Seattle

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Toronto to Seattle by changing tabs
Multiple Airlines
Dec 6
YYZ3:05 pmToronto Pearson Intl
20h 28m
1 stop
SEA11:33 amSeattle/Tacoma Intl
Dec 10
SEA9:25 amSeattle/Tacoma Intl
13h 15m
1 stop
YYZ10:40 pmToronto Pearson Intl
Air Canada
Nov 5
YYZ12:55 pmToronto Pearson Intl
5h 21m
SEA6:16 pmSeattle/Tacoma Intl
Nov 11
SEA5:40 amSeattle/Tacoma Intl
8h 48m
1 stop
YYZ2:28 pmToronto Pearson Intl
American Airlines
Dec 4
YYZ1:35 amToronto Pearson Intl
9h 19m
1 stop
SEA10:54 amSeattle/Tacoma Intl
Dec 12
SEA2:20 amSeattle/Tacoma Intl
13h 54m
1 stop
YYZ4:14 pmToronto Pearson Intl
Delta
Feb 4
YYZ11:00 amToronto Pearson Intl
10h 20m
2 stops
SEA9:20 pmSeattle/Tacoma Intl
Feb 11
SEA8:25 amSeattle/Tacoma Intl
7h 23m
1 stop
YYZ3:48 pmToronto Pearson Intl
United Airlines
Nov 4
YYZ12:55 pmToronto Pearson Intl
5h 21m
SEA6:16 pmSeattle/Tacoma Intl
Nov 14
SEA6:59 pmSeattle/Tacoma Intl
10h 49m
1 stop
YYZ5:48 amToronto Pearson Intl
Alaska Airlines
Dec 7
YYZ7:03 amToronto Pearson Intl
8h 06m
1 stop
SEA3:09 pmSeattle/Tacoma Intl
Dec 16
SEA1:30 amSeattle/Tacoma Intl
9h 48m
1 stop
YYZ11:18 amToronto Pearson Intl

Find the cheapest one-way flights from Toronto to Seattle

If you're looking for one-way flights from Toronto to Seattle, view some of our deals below provided by Air Canada, Delta and Lufthansa
Multiple Airlines
Nov 1
YYZ4:05 pmToronto Pearson Intl
23h 15m
1 stop
SEA3:20 pmSeattle/Tacoma Intl
Air Canada
Nov 1
YYZ12:55 pmToronto Pearson Intl
5h 21m
SEA6:16 pmSeattle/Tacoma Intl
Lufthansa
Oct 29
YYZ10:00 amToronto Pearson Intl
9h 43m
1 stop
SEA7:43 pmSeattle/Tacoma Intl

Search last-minute flights to Seattle from Toronto

Find and compare flight prices for your last-minute flight from Toronto to Seattle
Air Canada
Oct 22
YYZ1:50 pmToronto Pearson Intl
5h 15m
SEA7:05 pmSeattle/Tacoma Intl
Oct 28
SEA4:15 amSeattle/Tacoma Intl
4h 26m
YYZ8:41 amToronto Pearson Intl
Delta
Oct 23
YYZ3:00 amToronto Pearson Intl
8h 45m
1 stop
SEA11:45 amSeattle/Tacoma Intl
Oct 30
SEA6:00 pmSeattle/Tacoma Intl
8h 48m
1 stop
YYZ2:48 amToronto Pearson Intl
American Airlines
Oct 22
YYZ10:40 amToronto Pearson Intl
11h 52m
1 stop
SEA10:32 pmSeattle/Tacoma Intl
Oct 28
SEA1:30 amSeattle/Tacoma Intl
7h 50m
1 stop
YYZ9:20 amToronto Pearson Intl
Multiple Airlines
Oct 22
YYZ4:50 amToronto Pearson Intl
9h 38m
1 stop
SEA2:28 pmSeattle/Tacoma Intl
Oct 28
SEA11:45 amSeattle/Tacoma Intl
11h 10m
2 stops
YYZ10:55 pmToronto Pearson Intl
United Airlines
Oct 24
YYZ10:30 amToronto Pearson Intl
11h 58m
2 stops
SEA10:28 pmSeattle/Tacoma Intl
Nov 30
SEA2:30 pmSeattle/Tacoma Intl
18h 16m
2 stops
YYZ8:46 amToronto Pearson Intl
Air Canada
Oct 23
YYZ1:50 pmToronto Pearson Intl
5h 15m
SEA7:05 pmSeattle/Tacoma Intl
Oct 28
SEA2:00 amSeattle/Tacoma Intl
7h 17m
1 stop
YYZ9:17 amToronto Pearson Intl

Best airlines flying from Toronto to Seattle

Compare and see reviews for airlines that fly from Toronto to Seattle with momondo
AirlineRatingFree CancellationPrice
American Airlines
PriceFrom $172
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.1

Entertainment

6.8

Food

Reviews

Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!

1 / 10
WestJet
PriceFrom $243
Free Cancellation
Rating
8.1
8.0

Boarding

7.8

Comfort

8.4

Crew

7.3

Entertainment

6.6

Food

Reviews

The crew all the way from Medicine Hat to Thunder Bay were wonderful! I think Selva was the name of the stewardess on my flight from Medicine Hat to Calgary and she was delightful! It was pretty early in the morning and she was the right amount of pep without being overbearing. She was very organized and professional as well thank you! My flight from Calgary to Toronto was fantastic! I've been on large planes before and the boarding process was very well done by the crew. I was bumped to a window seat (such a blessing) and the selection of entertainment was great. The plane was very clean and modern. Vic the stewardess really stood out and was very kind and professional thank you Vic! I don't remember the names of the ladies on my flight from Toronto to Thunder Bay but they were fantastic as well! Its always a rough time flying into Thunder Bay that late but they made the journey as comfortable as possible, thank you both! All in all thanks Westjet team you did a great job and I look forward to flying with you again!

1 / 10
Delta
PriceFrom $273
Free Cancellation
Rating
8.2
8.2

Boarding

8.4

Comfort

8.3

Crew

8.1

Entertainment

8.0

Food

Reviews

Great

1 / 10
United Airlines
PriceFrom $373
Free Cancellation
Rating
6.8
7.2

Boarding

6.7

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Not because the flight is going to Africa we can’t get better service on board

1 / 10
Air Canada
PriceFrom $374
Free Cancellation
Rating
7.5
7.8

Boarding

7.3

Comfort

8.1

Crew

7.3

Entertainment

5.9

Food

Reviews

The food selection has been better in the past but due to Covid it is understandable. This particular flight did not have any entertainment and the Air Canada App did not work to access movies.

1 / 10

  • Are airlines flying from Toronto to Seattle/Tacoma Intl offering flexible cancellation due to COVID-19?

    Some of our partner airlines flying from Toronto to Seattle/Tacoma Intl are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are Air Canada, United Airlines, and Delta. You can search for the full list of airlines like Air Canada that are offering this flexibility.

  • 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 15m by plane in normal conditions.


Can I fly to Seattle/Tacoma Intl from Toronto right now?

Information is based on travel restrictions from Toronto to Seattle/Tacoma Intl

Most visitors from Toronto need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Toronto must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Toronto are not required to quarantine after entering Seattle/Tacoma Intl.

Can I fly back to Toronto from Seattle/Tacoma Intl?

Returning to Toronto from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Toronto.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Toronto.

If you are planning to travel to Seattle at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for Toronto to Seattle

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Ottawa to Seattle Flights
Fastest flight time9h 46m
Cheapest price$399

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