Find Cheap Flights from Toronto to Seattle/Tacoma Intl (YTO - SEA)

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Toronto to Seattle/Tacoma Intl

(Round-trip)
Depart: Mon May 15 2017 Return: Sun May 21 2017 Trip spans 7 days
WestJet
WestJet
YYZ
3:59a
SEA
1:09p
9h 10m
1 stop
SEA
3:35a
YYZ
12:45p
9h 10m
1 stop
Depart: Mon May 29 2017 Return: Thu Jun 1 2017 Trip spans 4 days
Major Airline
Major Airline
YYZ
7:14a
SEA
4:46p
9h 32m
1 stop
SEA
2:50p
YYZ
4:30a
13h 40m
1 stop
Depart: Wed Aug 30 2017 Return: Mon Sep 11 2017 Trip spans 13 days
Delta
Delta
YYZ
2:00a
SEA
11:40a
9h 40m
1 stop
SEA
6:45p
YYZ
1:29a
6h 44m
1 stop
Depart: Sun Jun 4 2017 Return: Sun Jun 11 2017 Trip spans 8 days
Air Canada
Air Canada
YYZ
3:00a
SEA
10:26a
7h 26m
1 stop
SEA
5:25p
YYZ
12:51a
7h 26m
1 stop
Depart: Tue May 9 2017 Return: Tue May 23 2017 Trip spans 15 days
Alaska Airlines
Alaska Airlines
YYZ
2:30p
SEA
1:13a
10h 43m
1 stop
SEA
8:35p
YYZ
4:01a
7h 26m
1 stop
Depart: Mon Jul 10 2017 Return: Mon Jul 17 2017 Trip spans 8 days
United
United
YYZ
3:59p
SEA
12:42a
8h 43m
1 stop
SEA
7:10p
YYZ
2:23a
7h 13m
1 stop
Depart: Sun Jul 9 2017 Return: Wed Jul 19 2017 Trip spans 11 days
American Airlines
American Airlines
YYZ
1:59p
SEA
11:32p
9h 33m
1 stop
SEA
1:25p
YYZ
3:24a
13h 59m
2 stops
Depart: Tue May 16 2017 Return: Sun May 21 2017 Trip spans 6 days
WestJet
WestJet
YYZ
2:45a
SEA
11:26a
8h 41m
1 stop
SEA
3:35a
YYZ
12:45p
9h 10m
1 stop
Depart: Wed May 31 2017 Return: Tue Jun 13 2017 Trip spans 14 days
Major Airline
Major Airline
YYZ
10:30a
SEA
9:13p
10h 43m
nonstop
SEA
6:00a
YYZ
1:45p
7h 45m
nonstop
Depart: Fri Sep 29 2017 Return: Mon Oct 2 2017 Trip spans 4 days
Delta
Delta
YYZ
1:05p
SEA
8:27p
7h 22m
1 stop
SEA
6:15p
YYZ
2:40a
8h 25m
1 stop
Depart: Fri May 26 2017 Return: Wed Jun 7 2017 Trip spans 13 days
WestJet
WestJet
YYZ
5:00a
SEA
1:09p
8h 09m
1 stop
SEA
5:40a
YYZ
1:29p
7h 49m
1 stop
Depart: Sat Sep 9 2017 Return: Thu Sep 14 2017 Trip spans 6 days
Major Airline
Major Airline
YYZ
3:53a
SEA
1:08p
9h 15m
2 stops
SEA
12:45p
YYZ
7:54p
7h 09m
2 stops
Depart: Wed May 10 2017 Return: Wed May 31 2017 Trip spans 22 days
Delta
Delta
YYZ
2:50a
SEA
12:13p
9h 23m
1 stop
SEA
2:00a
YYZ
8:42a
6h 42m
1 stop
Depart: Mon May 22 2017 Return: Wed Jun 7 2017 Trip spans 17 days
Air Canada
Air Canada
YYZ
3:30a
SEA
10:26a
6h 56m
1 stop
SEA
10:20a
YYZ
4:45p
6h 25m
1 stop
Depart: Tue May 30 2017 Return: Wed Jun 7 2017 Trip spans 9 days
WestJet
WestJet
YYZ
5:00a
SEA
1:09p
8h 09m
1 stop
SEA
6:00a
YYZ
1:00p
7h 00m
1 stop
Depart: Sat Oct 7 2017 Return: Sat Oct 14 2017 Trip spans 8 days
Major Airline
Major Airline
YYZ
7:03a
SEA
5:00p
9h 57m
1 stop
SEA
5:15a
YYZ
7:45p
14h 30m
1 stop
Depart: Wed May 17 2017 Return: Sun May 21 2017 Trip spans 5 days
Delta
Delta
YYZ
1:15p
SEA
10:10p
8h 55m
1 stop
SEA
9:15a
YYZ
4:22p
7h 07m
1 stop
Depart: Thu Jun 1 2017 Return: Tue Jun 13 2017 Trip spans 13 days
WestJet
WestJet
YYZ
7:30a
SEA
3:17p
7h 47m
1 stop
SEA
10:00a
YYZ
5:45p
7h 45m
1 stop
Depart: Sat Aug 19 2017 Return: Thu Sep 14 2017 Trip spans 27 days
Delta
Delta
YYZ
10:00a
SEA
6:50p
8h 50m
1 stop
SEA
3:55a
YYZ
1:43p
9h 48m
1 stop
Depart: Thu Jun 15 2017 Return: Thu Jun 22 2017 Trip spans 8 days
Major Airline
Major Airline
YYZ
10:30a
SEA
9:10p
10h 40m
nonstop
SEA
11:30p
YYZ
8:09a
8h 39m
nonstop
Direct flights YTO to SEA on United
Flight # Depart YYZ Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
8619 8:20 am 10:30 am Apr 22 - Apr 30
8525 7:00 pm 9:10 pm Apr 22 - Apr 30
8665 8:55 pm 11:05 pm May 1 - Jun 17
* 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.

We compile tonnes of data for you
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,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Toronto
$372
Destination

Seattle
$372
Airlines Airline reviews

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

Overall
6.1
Boarding
6.3
Crew
6.7
Comfort
6.1
Food
4.6
Entertainment
6.0