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: Sun May 28 2017 Return: Tue Jun 13 2017 Trip spans 17 days
Major Airline
Major Airline
SEA
2:00a
YYZ
3:06a
1h 06m
1 stop
YYZ
2:00a
SEA
9:06a
7h 06m
1 stop
Depart: Thu Jun 15 2017 Return: Fri Jun 16 2017 Trip spans 2 days
WestJet
WestJet
SEA
10:00a
YYZ
11:15p
13h 15m
1 stop
YYZ
5:00a
SEA
1:25p
8h 25m
1 stop
Depart: Tue Oct 3 2017 Return: Thu Oct 5 2017 Trip spans 3 days
Delta
Delta
SEA
6:15p
YYZ
2:40a
8h 25m
1 stop
YYZ
1:05p
SEA
10:22p
9h 17m
1 stop
Depart: Wed May 24 2017 Return: Sun May 28 2017 Trip spans 5 days
Air Canada
Air Canada
SEA
5:25p
YYZ
11:59p
6h 34m
1 stop
YYZ
3:30a
SEA
10:26a
6h 56m
1 stop
Depart: Wed Jun 7 2017 Return: Thu Jun 15 2017 Trip spans 9 days
United
United
SEA
7:05a
YYZ
11:42a
4h 37m
nonstop
YYZ
4:10a
SEA
9:22a
5h 12m
nonstop
Depart: Mon Aug 21 2017 Return: Mon Aug 28 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
1:25p
YYZ
3:29a
14h 04m
2 stops
YYZ
2:50p
SEA
11:15p
8h 25m
1 stop
Depart: Thu Jun 1 2017 Return: Sat Jun 17 2017 Trip spans 17 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 Aug 16 2017 Return: Thu Aug 24 2017 Trip spans 9 days
WestJet
WestJet
SEA
4:45p
YYZ
11:54p
7h 09m
1 stop
YYZ
4:50a
SEA
1:00p
8h 10m
1 stop
Depart: Fri Jun 2 2017 Return: Sun Jun 4 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
2:00a
YYZ
3:06a
1h 06m
nonstop
YYZ
2:00a
SEA
9:06a
7h 06m
nonstop
Depart: Wed Aug 23 2017 Return: Thu Aug 31 2017 Trip spans 9 days
WestJet
WestJet
SEA
4:45p
YYZ
11:54p
7h 09m
1 stop
YYZ
4:50a
SEA
1:00p
8h 10m
1 stop
Depart: Fri Jun 9 2017 Return: Tue Jun 13 2017 Trip spans 5 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: Fri Jul 21 2017 Return: Thu Jul 27 2017 Trip spans 7 days
Delta
Delta
SEA
4:45p
YYZ
11:43p
6h 58m
1 stop
YYZ
10:00a
SEA
6:50p
8h 50m
1 stop
Depart: Tue May 23 2017 Return: Thu May 25 2017 Trip spans 3 days
Air Canada
Air Canada
SEA
10:20a
YYZ
6:24p
8h 04m
1 stop
YYZ
3:30a
SEA
10:26a
6h 56m
1 stop
Depart: Fri Sep 15 2017 Return: Tue Sep 19 2017 Trip spans 5 days
WestJet
WestJet
SEA
5:40a
YYZ
12:59p
7h 19m
1 stop
YYZ
4:50a
SEA
1:00p
8h 10m
1 stop
Depart: Fri Jun 16 2017 Return: Sat Jun 17 2017 Trip spans 2 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: Fri May 5 2017 Return: Tue May 9 2017 Trip spans 5 days
American Airlines
American Airlines
SEA
1:59p
YYZ
4:01a
14h 02m
2 stops
YYZ
4:16a
SEA
7:16p
15h 00m
2 stops
Depart: Wed Jun 21 2017 Return: Fri Jun 23 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
2:00a
YYZ
3:06a
1h 06m
1 stop
YYZ
2:00a
SEA
9:06a
7h 06m
1 stop
Depart: Fri Oct 27 2017 Return: Sun Oct 29 2017 Trip spans 3 days
WestJet
WestJet
SEA
5:45a
YYZ
2:58p
9h 13m
1 stop
YYZ
5:00a
SEA
3:00p
10h 00m
1 stop
Depart: Sun Jun 11 2017 Return: Tue Jun 13 2017 Trip spans 3 days
Air Canada
Air Canada
SEA
5:25p
YYZ
12:51a
7h 26m
1 stop
YYZ
3:00a
SEA
10:26a
7h 26m
1 stop
Depart: Tue Aug 29 2017 Return: Thu Sep 7 2017 Trip spans 10 days
Delta
Delta
SEA
6:45p
YYZ
1:29a
6h 44m
1 stop
YYZ
5:45a
SEA
5:50p
12h 05m
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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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
$411
Destination

Toronto
$411
Airlines Airline reviews

39 travelers who booked a flight from Seattle to Toronto rated their chosen airlines with an average of 6.4.

Overall
6.7
Boarding
6.7
Crew
7.4
Comfort
6.4
Food
5.4
Entertainment
6.1