Cheap flights from Seattle to Toronto

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Easily compare round trip flights from Seattle to Toronto

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 Seattle to Toronto by changing tabs
Quickest
Cheapest
Delta
Delta
26 Oct
SEA
4:25 am
Seattle/Tacoma Intl airport
9h 15m
1 Stop
4:40 pm
YYZ
Toronto Pearson Intl airport
Delta
30 Oct
YYZ
10:31 am
Toronto Pearson Intl airport
10h 32m
1 Stop
6:03 pm
SEA
Seattle/Tacoma Intl airport
447 USD
Delta
Delta
05 Nov
SEA
3:35 am
Seattle/Tacoma Intl airport
9h 05m
1 Stop
3:40 pm
YYZ
Toronto Pearson Intl airport
Delta
12 Nov
YYZ
9:31 am
Toronto Pearson Intl airport
10h 37m
1 Stop
5:08 pm
SEA
Seattle/Tacoma Intl airport
458 USD
Delta
Delta
01 Oct
SEA
4:30 am
Seattle/Tacoma Intl airport
9h 15m
1 Stop
4:45 pm
YYZ
Toronto Pearson Intl airport
Delta
07 Oct
YYZ
9:30 am
Toronto Pearson Intl airport
9h 40m
2 Stops
4:10 pm
SEA
Seattle/Tacoma Intl airport
468 USD
Alaska Airlines
Alaska Airlines
14 Jun
SEA
5:55 pm
Seattle/Tacoma Intl airport
7h 08m
1 Stop
4:03 am
+1
YYZ
Toronto Pearson Intl airport
Alaska Airlines
15 Jun
YYZ
9:51 am
Toronto Pearson Intl airport
7h 48m
1 Stop
2:39 pm
SEA
Seattle/Tacoma Intl airport
855 USD
American Airlines
American Airlines
10 Sep
SEA
10:50 pm
Seattle/Tacoma Intl airport
8h 53m
1 Stop
10:43 am
+1
YYZ
Toronto Pearson Intl airport
American Airlines
14 Sep
YYZ
2:00 am
Toronto Pearson Intl airport
7h 30m
1 Stop
6:30 am
SEA
Seattle/Tacoma Intl airport
488 USD
Air Canada
Air Canada
24 Jun
SEA
1:20 pm
Seattle/Tacoma Intl airport
8h 05m
1 Stop
12:25 am
+1
YYZ
Toronto Pearson Intl airport
Air Canada
03 Jul
YYZ
3:21 pm
Toronto Pearson Intl airport
8h 57m
1 Stop
9:18 pm
SEA
Seattle/Tacoma Intl airport
513 USD

How to get the cheapest flight ticket from Seattle to Toronto

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
CHEAPEST MONTH TO FLY
February
The cheapest time of year to fly to Toronto from Seattle is February. Most expensive is December
CHEAPEST DAY TO FLY
Thursday
The cheapest day of the week is typically Thursday. The most expensive is typically Monday
CHEAPEST TIME TO FLY
in the Afternoon
Seattle to Toronto flights are approximately 41% more expensive in the Morning than in the Afternoon
CHEAPEST AIRLINE
Spirit Airlines
Spirit Airlines, WestJet, and American Airlines are the most popular carriers operating from Seattle to Toronto
CHEAPEST ROUTE
Seattle/Tacoma Intl - Toronto Pearson Intl
Fly from Seattle/Tacoma Intl to Toronto Pearson Intl for the best Seattle - Toronto flight prices
CHEAPEST TIME TO BOOK
59 days before
The cheapest time to buy a flight from Seattle to Toronto is approximately 59 days to departure
60
Days before departure
0

Flight information for Seattle to Toronto (03A - YTO)

Find info about flight duration, direct flights, and airports for your flight from Seattle to Toronto
Fastest flight time
4h 34m
The fastest flight from Seattle to Toronto takes 4h 34m.
Direct flights
Every day
Direct flights go from Seattle to Toronto every day.
Airports in Toronto
4 airports
There are 4 airports near Toronto: Toronto Kitchener-Waterloo (YKF), Toronto Pearson Intl (YYZ), Toronto Island (YTZ), Toronto Hamilton (YHM)

Alternative routes for Seattle to Toronto

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times

Flights from Seattle to:

Flights to Toronto from:

  • Seattle
  • Washington
  • United States
  • North America