Find Cheap Flights from Montreal to Seattle/Tacoma Intl (YMQ - 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 Montreal to Seattle/Tacoma Intl

(Round-trip)
Depart: Fri Sep 8 2017 Return: Fri Sep 22 2017 Trip spans 15 days
WestJet
WestJet
YUL
3:50a
SEA
1:00p
9h 10m
1 stop
SEA
4:45p
YUL
12:02a
7h 17m
1 stop
Depart: Sat Jun 10 2017 Return: Wed Jun 14 2017 Trip spans 5 days
Major Airline
Major Airline
YUL
4:15a
SEA
1:23p
9h 08m
2 stops
SEA
6:00a
YUL
8:05p
14h 05m
2 stops
Depart: Fri May 12 2017 Return: Mon May 15 2017 Trip spans 4 days
United
United
YUL
2:00a
SEA
3:21p
13h 21m
2 stops
SEA
7:15p
YUL
2:10a
6h 55m
1 stop
Depart: Wed Aug 2 2017 Return: Sat Aug 12 2017 Trip spans 11 days
Air Canada
Air Canada
YUL
12:30p
SEA
10:14p
9h 44m
1 stop
SEA
5:25p
YUL
12:51a
7h 26m
1 stop
Depart: Thu Jun 15 2017 Return: Sat Jul 1 2017 Trip spans 17 days
Major Airline
Major Airline
YUL
4:15a
SEA
1:23p
9h 08m
1 stop
SEA
2:40p
YUL
5:19a
14h 39m
1 stop
Depart: Fri Jun 16 2017 Return: Sun Jul 2 2017 Trip spans 17 days
WestJet
WestJet
YUL
3:50a
SEA
1:25p
9h 35m
1 stop
SEA
3:45a
YUL
9:19a
29h 34m
1 stop
Depart: Tue Jul 4 2017 Return: Mon Jul 17 2017 Trip spans 14 days
Major Airline
Major Airline
YUL
4:15a
SEA
1:23p
9h 08m
2 stops
SEA
2:40p
YUL
5:26a
14h 46m
2 stops
Depart: Thu Jun 1 2017 Return: Tue Jun 6 2017 Trip spans 6 days
United
United
YUL
2:15p
SEA
12:13a
9h 58m
1 stop
SEA
7:19p
YUL
2:10a
6h 51m
1 stop
Depart: Fri Sep 22 2017 Return: Thu Oct 5 2017 Trip spans 14 days
WestJet
WestJet
YUL
3:50a
SEA
1:00p
9h 10m
1 stop
SEA
4:45p
YUL
12:02a
7h 17m
1 stop
Depart: Mon May 15 2017 Return: Thu May 18 2017 Trip spans 4 days
Delta
Delta
YUL
1:00p
SEA
9:01p
8h 01m
1 stop
SEA
2:00a
YUL
9:17a
7h 17m
1 stop
Depart: Fri Jun 9 2017 Return: Tue Jun 13 2017 Trip spans 5 days
Major Airline
Major Airline
YUL
4:15a
SEA
1:23p
9h 08m
2 stops
SEA
11:30p
YUL
11:26a
11h 56m
2 stops
Depart: Thu Aug 10 2017 Return: Sun Aug 13 2017 Trip spans 4 days
United
United
YUL
2:15p
SEA
12:00a
9h 45m
1 stop
SEA
1:15p
YUL
12:10a
10h 55m
1 stop
Depart: Tue May 16 2017 Return: Fri May 19 2017 Trip spans 4 days
WestJet
WestJet
YUL
3:50a
SEA
1:20p
9h 30m
1 stop
SEA
3:05p
YUL
12:05a
9h 00m
1 stop
Depart: Tue Jun 20 2017 Return: Wed Jun 28 2017 Trip spans 9 days
Major Airline
Major Airline
YUL
4:15a
SEA
1:23p
9h 08m
2 stops
SEA
9:09a
YUL
8:05p
10h 56m
2 stops
Depart: Sun Jul 2 2017 Return: Tue Jul 18 2017 Trip spans 17 days
WestJet
WestJet
YUL
3:50a
SEA
7:45a
27h 55m
1 stop
SEA
3:45a
YUL
9:19a
29h 34m
1 stop
Depart: Mon Jul 10 2017 Return: Fri Jul 14 2017 Trip spans 5 days
Major Airline
Major Airline
YUL
4:15a
SEA
1:23p
9h 08m
2 stops
SEA
11:45p
YUL
11:26a
11h 41m
2 stops
Depart: Tue Aug 1 2017 Return: Sat Aug 12 2017 Trip spans 12 days
Air Canada
Air Canada
YUL
1:30a
SEA
9:19a
7h 49m
1 stop
SEA
5:25p
YUL
12:51a
7h 26m
1 stop
Depart: Mon Jun 12 2017 Return: Sat Jul 1 2017 Trip spans 20 days
WestJet
WestJet
YUL
3:25p
SEA
6:00a
14h 35m
1 stop
SEA
4:45p
YUL
10:12a
17h 27m
1 stop
Depart: Sun May 14 2017 Return: Sun May 21 2017 Trip spans 8 days
Major Airline
Major Airline
YUL
2:00a
SEA
9:33a
7h 33m
2 stops
SEA
2:00a
YUL
3:33a
1h 33m
2 stops
Depart: Thu Aug 3 2017 Return: Sat Aug 12 2017 Trip spans 10 days
Air Canada
Air Canada
YUL
1:30a
SEA
9:19a
7h 49m
1 stop
SEA
5:25p
YUL
12:51a
7h 26m
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.

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

Montreal
$311
Destination

Seattle
$311