Find Deals on Flights from Toronto Pearson Intl to Seattle

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Toronto Pearson Intl to Seattle

(Round-trip)
Depart: Thu Jan 5 2017 Return: Wed Jan 25 2017 Trip spans 21 days
Delta
Delta
YYZ
10:59a
SEA
7:52p
8h 53m
1 stop
SEA
6:34a
YYZ
3:35p
9h 01m
1 stop
Depart: Sun Mar 5 2017 Return: Fri Mar 10 2017 Trip spans 6 days
Major Airline
Major Airline
YYZ
9:00p
SEA
4:25a
7h 25m
2 stops
SEA
1:10a
YYZ
5:45a
4h 35m
2 stops
Depart: Mon Feb 13 2017 Return: Sat Feb 18 2017 Trip spans 6 days
United
United
YYZ
9:50a
SEA
5:29p
7h 39m
1 stop
SEA
3:10a
YYZ
7:45a
4h 35m
nonstop
Depart: Fri Mar 10 2017 Return: Sun Mar 19 2017 Trip spans 9 days
American Airlines
American Airlines
YYZ
7:15a
SEA
7:25p
12h 10m
1 stop
SEA
6:45p
YYZ
3:29a
8h 44m
1 stop
Depart: Sun Mar 12 2017 Return: Fri Mar 17 2017 Trip spans 6 days
WestJet
WestJet
YYZ
5:05a
SEA
1:21p
8h 16m
1 stop
SEA
6:00a
YYZ
12:52p
6h 52m
1 stop
Depart: Wed Jan 4 2017 Return: Sun Jan 15 2017 Trip spans 12 days
Air Canada
Air Canada
YYZ
3:30a
SEA
12:45p
9h 15m
1 stop
SEA
3:10a
YYZ
7:45a
4h 35m
nonstop
Depart: Fri Jan 6 2017 Return: Wed Jan 25 2017 Trip spans 20 days
Delta
Delta
YYZ
11:00a
SEA
8:57p
9h 57m
1 stop
SEA
1:00a
YYZ
9:00a
8h 00m
1 stop
Depart: Sat Jan 7 2017 Return: Wed Jan 25 2017 Trip spans 19 days
Delta
Delta
YYZ
8:00a
SEA
3:55p
7h 55m
1 stop
SEA
6:34a
YYZ
3:35p
9h 01m
1 stop
Depart: Mon Mar 13 2017 Return: Sat Mar 18 2017 Trip spans 6 days
Major Airline
Major Airline
YYZ
12:10a
SEA
5:34a
5h 24m
nonstop
SEA
12:10a
YYZ
4:45a
4h 35m
nonstop
Depart: Sun Jan 8 2017 Return: Wed Jan 25 2017 Trip spans 18 days
Delta
Delta
YYZ
10:59a
SEA
9:26p
10h 27m
1 stop
SEA
1:15a
YYZ
9:09a
7h 54m
1 stop
Depart: Tue Dec 13 2016 Return: Sat Dec 31 2016 Trip spans 19 days
United
United
YYZ
3:15a
SEA
3:59p
12h 44m
1 stop
SEA
6:10a
YYZ
10:45a
4h 35m
nonstop
Depart: Mon Dec 19 2016 Return: Tue Jan 3 2017 Trip spans 16 days
American Airlines
American Airlines
YYZ
1:15p
SEA
8:55p
7h 40m
1 stop
SEA
1:37a
YYZ
9:31a
7h 54m
1 stop
Depart: Sat Mar 11 2017 Return: Fri Mar 17 2017 Trip spans 6 days
WestJet
WestJet
YYZ
1:15p
SEA
6:45a
16h 30m
1 stop
SEA
6:00a
YYZ
12:52p
6h 52m
1 stop
Depart: Sun Dec 18 2016 Return: Fri Dec 30 2016 Trip spans 13 days
Air Canada
Air Canada
YYZ
2:00p
SEA
7:24p
5h 24m
nonstop
SEA
3:10a
YYZ
7:45a
4h 35m
nonstop
Depart: Sat May 27 2017 Return: Sun Jun 4 2017 Trip spans 9 days
Major Airline
Major Airline
YYZ
10:50a
SEA
8:11p
9h 21m
1 stop
SEA
11:00a
YYZ
7:20p
8h 20m
1 stop
Depart: Mon Jan 9 2017 Return: Sat Jan 28 2017 Trip spans 20 days
Delta
Delta
YYZ
8:09a
SEA
5:59p
9h 50m
1 stop
SEA
5:45p
YYZ
1:39a
7h 54m
1 stop
Depart: Tue Dec 20 2016 Return: Tue Jan 3 2017 Trip spans 15 days
American Airlines
American Airlines
YYZ
2:59a
SEA
11:03a
8h 04m
1 stop
SEA
1:37a
YYZ
9:31a
7h 54m
1 stop
Depart: Sun Jun 25 2017 Return: Wed Jul 5 2017 Trip spans 11 days
United
United
YYZ
8:30a
SEA
4:19p
7h 49m
1 stop
SEA
7:05p
YYZ
2:17a
7h 12m
1 stop
Depart: Thu Jan 19 2017 Return: Sun Jan 22 2017 Trip spans 4 days
Delta
Delta
YYZ
10:46a
SEA
8:17p
9h 31m
1 stop
SEA
8:18a
YYZ
3:35p
7h 17m
1 stop
Depart: Sun Feb 19 2017 Return: Fri Feb 24 2017 Trip spans 6 days
American Airlines
American Airlines
YYZ
1:15p
SEA
8:50p
7h 35m
1 stop
SEA
3:00a
YYZ
9:30a
6h 30m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Toronto
$437
Destination

Seattle
$437
Airlines Airline reviews

46 travelers who booked a flight from Toronto to Seattle rated their chosen airlines with an average of 6.1.

Overall
6.0
Boarding
6.2
Crew
6.6
Comfort
6.0
Food
4.5
Entertainment
6.0