Cheap flights from Montreal to North Seattle

View AU$327 flight on Fri, 22 Aug. 2025Opens in a new window

Popular airlines from Montreal to North Seattle

  • American Airlines

    American Airlines

  • Air Canada

    Air Canada

  • Delta

    Delta

  • United

    United

  • WestJet

    WestJet

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Montreal (YMQ) to North Seattle (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, 22 Aug. - Sun, 7 Sep.
YUL
Montreal
SEA
Seattle
AU$572 Return, found 1 day ago
AU$572
Return
found 1 day ago
Select Air Canada flight, departing Fri, 22 Aug. from Montreal to Seattle, returning Sun, 7 Sep., priced at AU$572 found 1 day ago
WestJet
Fri, 22 Aug. - Sun, 7 Sep.
YUL
Montreal
SEA
Seattle
AU$572 Return, found 1 day ago
AU$572
Return
found 1 day ago
Select WestJet flight, departing Fri, 22 Aug. from Montreal to Seattle, returning Sun, 7 Sep., priced at AU$572 found 1 day ago
Air Canada
Fri, 22 Aug. - Sun, 7 Sep.
YUL
Montreal
SEA
Seattle
AU$583 Return, found 1 day ago
AU$583
Return
found 1 day ago
Select Air Canada flight, departing Fri, 22 Aug. from Montreal to Seattle, returning Sun, 7 Sep., priced at AU$583 found 1 day ago
Delta
Sat, 23 Aug. - Sat, 6 Sep.
YUL
Montreal
SEA
Seattle
AU$633 Return, found 1 day ago
AU$633
Return
found 1 day ago
Select Delta flight, departing Sat, 23 Aug. from Montreal to Seattle, returning Sat, 6 Sep., priced at AU$633 found 1 day ago
United
Fri, 22 Aug. - Fri, 5 Sep.
YUL
Montreal
SEA
Seattle
AU$640 Return, found 1 day ago
AU$640
Return
found 1 day ago
Select United flight, departing Fri, 22 Aug. from Montreal to Seattle, returning Fri, 5 Sep., priced at AU$640 found 1 day ago
American Airlines
Thu, 21 Aug. - Sat, 6 Sep.
YUL
Montreal
SEA
Seattle
AU$645 Return, found 1 day ago
AU$645
Return
found 1 day ago
Select American Airlines flight, departing Thu, 21 Aug. from Montreal to Seattle, returning Sat, 6 Sep., priced at AU$645 found 1 day ago
*Available to Expedia members.