Find Cheap Flights from Seattle to Toronto

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 Seattle to Toronto

(Round-trip)
Depart: Tue Oct 3 2017 Return: Tue Oct 10 2017 Trip spans 8 days
Major Airline
Major Airline
SEA
3:00a
YYZ
7:30a
4h 30m
nonstop
YYZ
11:30a
SEA
4:41p
5h 11m
nonstop
Depart: Mon Aug 28 2017 Return: Fri Sep 1 2017 Trip spans 5 days
United
United
SEA
8:01p
YYZ
6:15a
10h 14m
1 stop
YYZ
2:01p
SEA
11:28p
9h 27m
1 stop
Depart: Fri Oct 13 2017 Return: Mon Oct 16 2017 Trip spans 4 days
Delta
Delta
SEA
6:50a
YYZ
2:59p
8h 09m
1 stop
YYZ
1:00p
SEA
10:22p
9h 22m
1 stop
Depart: Mon Jul 24 2017 Return: Wed Aug 2 2017 Trip spans 10 days
Air Canada
Air Canada
SEA
2:30a
YYZ
7:03a
4h 33m
nonstop
YYZ
4:00a
SEA
9:19a
5h 19m
nonstop
Depart: Fri Oct 20 2017 Return: Sat Oct 21 2017 Trip spans 2 days
WestJet
WestJet
SEA
4:45p
YYZ
11:54p
7h 09m
1 stop
YYZ
6:10a
SEA
6:50p
12h 40m
1 stop
Depart: Thu Sep 7 2017 Return: Sat Sep 9 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
1:00a
YYZ
2:06a
1h 06m
1 stop
YYZ
1:00a
SEA
8:06a
7h 06m
1 stop
Depart: Wed Sep 20 2017 Return: Sat Sep 23 2017 Trip spans 4 days
United
United
SEA
7:15p
YYZ
4:32a
9h 17m
1 stop
YYZ
5:49a
SEA
2:57p
9h 08m
1 stop
Depart: Fri Nov 24 2017 Return: Mon Dec 4 2017 Trip spans 11 days
Delta
Delta
SEA
6:35a
YYZ
3:23p
8h 48m
1 stop
YYZ
1:00a
SEA
12:19p
11h 19m
1 stop
Depart: Thu Sep 21 2017 Return: Tue Sep 26 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
3:00a
YYZ
4:06a
1h 06m
1 stop
YYZ
3:00a
SEA
10:06a
7h 06m
1 stop
Depart: Tue Aug 15 2017 Return: Thu Aug 17 2017 Trip spans 3 days
Air Canada
Air Canada
SEA
2:30a
YYZ
7:03a
4h 33m
nonstop
YYZ
3:30a
SEA
10:30a
7h 00m
1 stop
Depart: Sun Oct 22 2017 Return: Mon Oct 23 2017 Trip spans 2 days
WestJet
WestJet
SEA
9:15a
YYZ
11:47p
14h 32m
1 stop
YYZ
4:50a
SEA
1:00p
8h 10m
1 stop
Depart: Sat Oct 21 2017 Return: Thu Oct 26 2017 Trip spans 6 days
United
United
SEA
7:45a
YYZ
4:45p
9h 00m
1 stop
YYZ
8:00a
SEA
5:40p
9h 40m
1 stop
Depart: Thu Dec 21 2017 Return: Sat Dec 30 2017 Trip spans 10 days
Delta
Delta
SEA
1:00a
YYZ
7:43a
6h 43m
1 stop
YYZ
12:00p
SEA
7:27p
7h 27m
1 stop
Depart: Wed Sep 27 2017 Return: Mon Oct 2 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
1:00a
YYZ
2:06a
1h 06m
nonstop
YYZ
1:00a
SEA
8:06a
7h 06m
nonstop
Depart: Mon Aug 7 2017 Return: Thu Aug 10 2017 Trip spans 4 days
Air Canada
Air Canada
SEA
2:30a
YYZ
7:03a
4h 33m
nonstop
YYZ
3:30a
SEA
10:30a
7h 00m
1 stop
Depart: Sun Jul 30 2017 Return: Fri Aug 11 2017 Trip spans 13 days
WestJet
WestJet
SEA
5:50a
YYZ
12:59p
7h 09m
1 stop
YYZ
4:50a
SEA
1:29p
8h 39m
1 stop
Depart: Thu Sep 28 2017 Return: Tue Oct 3 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
3:00a
YYZ
4:06a
1h 06m
1 stop
YYZ
3:00a
SEA
10:06a
7h 06m
1 stop
Depart: Tue Dec 26 2017 Return: Tue Jan 2 2018 Trip spans 8 days
Delta
Delta
SEA
6:35a
YYZ
3:23p
8h 48m
1 stop
YYZ
12:00p
SEA
9:12p
9h 12m
1 stop
Depart: Fri Sep 8 2017 Return: Sun Sep 10 2017 Trip spans 3 days
United
United
SEA
5:10a
YYZ
4:35p
11h 25m
2 stops
YYZ
4:20p
SEA
12:33a
8h 13m
1 stop
Depart: Tue Aug 29 2017 Return: Tue Sep 5 2017 Trip spans 8 days
Air Canada
Air Canada
SEA
2:30a
YYZ
7:03a
4h 33m
nonstop
YYZ
3:30a
SEA
10:30a
7h 00m
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:

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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

Seattle
$430
Destination

Toronto
$430
Airlines Airline reviews

40 travelers who booked a flight from Seattle to Toronto rated their chosen airlines with an average of 6.5.

Overall
6.8
Boarding
6.8
Crew
7.5
Comfort
6.5
Food
5.2
Entertainment
5.9