Find Cheap Flights from Toronto 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
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 to Seattle

(Round-trip)
Depart: Sat Sep 23 2017 Return: Tue Sep 26 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
YYZ
12:00a
SEA
8:33a
8h 33m
1 stop
SEA
12:00a
YYZ
11:43a
11h 43m
1 stop
Depart: Mon Sep 18 2017 Return: Thu Sep 21 2017 Trip spans 4 days
Delta
Delta
YYZ
12:00a
SEA
11:14a
11h 14m
2 stops
SEA
12:00a
YYZ
6:48a
6h 48m
1 stop
Depart: Thu Oct 12 2017 Return: Sat Oct 28 2017 Trip spans 17 days
American Airlines
American Airlines
YYZ
12:00a
SEA
9:38a
9h 38m
1 stop
SEA
12:00a
YYZ
5:28p
17h 28m
1 stop
Depart: Mon Sep 11 2017 Return: Fri Sep 15 2017 Trip spans 5 days
WestJet
WestJet
YYZ
12:00a
SEA
12:36a
24h 36m
1 stop
SEA
12:00a
YYZ
6:48a
6h 48m
1 stop
Depart: Wed Oct 4 2017 Return: Fri Oct 6 2017 Trip spans 3 days
Air Canada
Air Canada
YYZ
12:00a
SEA
5:13a
5h 13m
nonstop
SEA
12:00a
YYZ
4:28a
4h 28m
nonstop
Depart: Sat Oct 14 2017 Return: Sun Oct 29 2017 Trip spans 16 days
United
United
YYZ
12:00a
SEA
8:25a
8h 25m
1 stop
SEA
12:00a
YYZ
6:45a
6h 45m
1 stop
Depart: Thu Sep 7 2017 Return: Thu Sep 14 2017 Trip spans 8 days
Porter Airlines
Porter Airlines
YTZ
12:00a
SEA
1:44p
13h 44m
1 stop
SEA
12:00a
YTZ
10:41a
10h 41m
1 stop
Depart: Tue Sep 19 2017 Return: Sat Sep 23 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
YYZ
12:00a
SEA
10:15a
10h 15m
1 stop
SEA
12:00a
YYZ
11:43a
11h 43m
1 stop
Depart: Thu Oct 5 2017 Return: Tue Oct 10 2017 Trip spans 6 days
Delta
Delta
YYZ
12:00a
SEA
9:40a
9h 40m
1 stop
SEA
12:00a
YYZ
6:36a
6h 36m
1 stop
Depart: Sat Oct 14 2017 Return: Mon Oct 30 2017 Trip spans 17 days
American Airlines
American Airlines
YYZ
12:00a
SEA
1:12p
13h 12m
1 stop
SEA
12:00a
YYZ
1:30p
13h 30m
1 stop
Depart: Fri Sep 29 2017 Return: Sun Oct 1 2017 Trip spans 3 days
WestJet
WestJet
YYZ
12:00a
SEA
12:35a
24h 35m
1 stop
SEA
12:00a
YYZ
9:02a
9h 02m
1 stop
Depart: Tue Oct 10 2017 Return: Thu Oct 26 2017 Trip spans 17 days
Air Canada
Air Canada
YYZ
12:00a
SEA
5:11a
5h 11m
nonstop
SEA
12:00a
YYZ
4:28a
4h 28m
nonstop
Depart: Mon Feb 26 2018 Return: Sun Mar 4 2018 Trip spans 7 days
United
United
YYZ
12:00a
SEA
11:29a
11h 29m
1 stop
SEA
12:00a
YYZ
7:28a
7h 28m
1 stop
Depart: Tue Oct 3 2017 Return: Thu Oct 19 2017 Trip spans 17 days
Multiple Airlines
Multiple Airlines
YYZ
12:00a
SEA
10:15a
10h 15m
1 stop
SEA
12:00a
YYZ
9:15a
9h 15m
1 stop
Depart: Fri Oct 6 2017 Return: Fri Oct 13 2017 Trip spans 8 days
WestJet
WestJet
YYZ
12:00a
SEA
9:05p
21h 05m
1 stop
SEA
12:00a
YYZ
9:02a
9h 02m
1 stop
Depart: Wed Oct 11 2017 Return: Thu Oct 26 2017 Trip spans 16 days
Air Canada
Air Canada
YYZ
12:00a
SEA
5:11a
5h 11m
nonstop
SEA
12:00a
YYZ
4:28a
4h 28m
nonstop
Depart: Thu Sep 7 2017 Return: Wed Sep 13 2017 Trip spans 7 days
Delta
Delta
YYZ
12:00a
SEA
9:15a
9h 15m
1 stop
SEA
12:00a
YYZ
8:30a
8h 30m
1 stop
Depart: Wed Sep 6 2017 Return: Tue Sep 12 2017 Trip spans 7 days
American Airlines
American Airlines
YYZ
12:00a
SEA
4:35p
16h 35m
1 stop
SEA
12:00a
YYZ
2:39p
14h 39m
1 stop
Depart: Fri Sep 15 2017 Return: Wed Sep 20 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
YYZ
12:00a
SEA
8:39a
8h 39m
1 stop
SEA
12:00a
YYZ
11:33a
11h 33m
1 stop
Depart: Thu Oct 12 2017 Return: Fri Oct 27 2017 Trip spans 16 days
Air Canada
Air Canada
YYZ
12:00a
SEA
5:11a
5h 11m
nonstop
SEA
12:00a
YYZ
4:28a
4h 28m
nonstop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

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.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Toronto
only $394
only $616
Destination

Seattle
$394
Airlines Airline reviews

58 travelers who booked a flight from Toronto to Seattle rated their chosen airlines with an average of 6.2.

Overall
6.2
Boarding
6.3
Crew
6.7
Comfort
6.2
Food
4.8
Entertainment
6.1