Find Deals on Flights from Montreal 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 Montreal to Seattle

(Round-trip)
Depart: Sat Feb 4 2017 Return: Tue Feb 7 2017 Trip spans 4 days
Delta
Delta
YUL
7:25a
SEA
7:46p
12h 21m
2 stops
SEA
1:26p
YUL
3:22a
13h 56m
2 stops
Depart: Thu Feb 9 2017 Return: Mon Feb 13 2017 Trip spans 5 days
Major Airline
Major Airline
YUL
6:00a
SEA
2:24p
8h 24m
1 stop
SEA
12:05a
YUL
10:00a
9h 55m
1 stop
Depart: Thu Jan 12 2017 Return: Tue Jan 17 2017 Trip spans 6 days
American Airlines
American Airlines
YUL
6:55a
SEA
7:26p
12h 31m
1 stop
SEA
1:30a
YUL
1:56p
12h 26m
1 stop
Depart: Tue May 9 2017 Return: Wed May 31 2017 Trip spans 23 days
WestJet
WestJet
YUL
5:00a
SEA
3:15p
10h 15m
2 stops
SEA
4:55p
YUL
12:04a
7h 09m
1 stop
Depart: Mon May 8 2017 Return: Sun May 28 2017 Trip spans 21 days
United
United
YUL
5:40a
SEA
2:09p
8h 29m
1 stop
SEA
6:30p
YUL
2:57a
8h 27m
1 stop
Depart: Thu Jan 5 2017 Return: Sun Jan 15 2017 Trip spans 11 days
Air Canada
Air Canada
YUL
2:25a
SEA
12:45p
10h 20m
1 stop
SEA
6:50a
YUL
3:00p
8h 10m
1 stop
Depart: Fri Feb 10 2017 Return: Sun Feb 12 2017 Trip spans 3 days
Delta
Delta
YUL
11:30a
SEA
9:31p
10h 01m
1 stop
SEA
7:29p
YUL
8:06a
12h 37m
2 stops
Depart: Fri Jan 13 2017 Return: Wed Jan 18 2017 Trip spans 6 days
American Airlines
American Airlines
YUL
9:25a
SEA
7:26p
10h 01m
1 stop
SEA
1:30a
YUL
1:56p
12h 26m
1 stop
Depart: Sat Apr 29 2017 Return: Tue May 9 2017 Trip spans 11 days
Major Airline
Major Airline
YUL
11:45p
SEA
9:44a
9h 59m
2 stops
SEA
4:35a
YUL
1:33p
8h 58m
2 stops
Depart: Fri Jan 20 2017 Return: Mon Jan 23 2017 Trip spans 4 days
Delta
Delta
YUL
7:10a
SEA
5:28p
10h 18m
1 stop
SEA
5:42p
YUL
3:22a
9h 40m
1 stop
Depart: Wed May 10 2017 Return: Wed May 31 2017 Trip spans 22 days
American Airlines
American Airlines
YUL
4:00a
SEA
5:29p
13h 29m
1 stop
SEA
7:21a
YUL
5:54p
10h 33m
1 stop
Depart: Mon Feb 6 2017 Return: Sat Feb 11 2017 Trip spans 6 days
Major Airline
Major Airline
YUL
6:00a
SEA
2:24p
8h 24m
2 stops
SEA
12:45a
YUL
8:20a
7h 35m
2 stops
Depart: Mon Jun 19 2017 Return: Fri Jul 7 2017 Trip spans 19 days
WestJet
WestJet
YUL
2:45a
SEA
1:05p
10h 20m
1 stop
SEA
4:45p
YUL
12:04a
7h 19m
1 stop
Depart: Mon Mar 20 2017 Return: Fri Mar 24 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
YUL
11:47a
SEA
8:51p
9h 04m
1 stop
SEA
8:10a
YUL
5:54p
9h 44m
1 stop
Depart: Thu Feb 2 2017 Return: Mon Feb 6 2017 Trip spans 5 days
Delta
Delta
YUL
11:41a
SEA
8:18p
8h 37m
1 stop
SEA
8:18a
YUL
3:42p
7h 24m
1 stop
Depart: Thu May 11 2017 Return: Thu Jun 1 2017 Trip spans 22 days
American Airlines
American Airlines
YUL
2:00a
SEA
5:29p
15h 29m
1 stop
SEA
7:21a
YUL
5:54p
10h 33m
1 stop
Depart: Sat May 13 2017 Return: Sat Jun 3 2017 Trip spans 22 days
United
United
YUL
12:40p
SEA
9:03p
8h 23m
1 stop
SEA
7:05p
YUL
3:42a
8h 37m
1 stop
Depart: Wed Mar 22 2017 Return: Tue Mar 28 2017 Trip spans 7 days
Major Airline
Major Airline
YUL
5:30a
SEA
3:35p
10h 05m
2 stops
SEA
9:50p
YUL
11:30a
13h 40m
2 stops
Depart: Sun Feb 26 2017 Return: Wed Mar 1 2017 Trip spans 4 days
WestJet
WestJet
YUL
12:30p
SEA
2:15p
25h 45m
1 stop
SEA
5:40p
YUL
8:45a
15h 05m
1 stop
Depart: Thu Mar 2 2017 Return: Tue Mar 7 2017 Trip spans 6 days
Delta
Delta
YUL
11:52a
SEA
9:03p
9h 11m
1 stop
SEA
5:35p
YUL
3:13a
9h 38m
1 stop
* 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

Montreal
$323
Destination

Seattle
$323