Cheap flights from Montreal to Northwest Washington

View AU$352 flight on Fri, 12 Sep. 2025Opens in a new window

Popular airlines from Montreal to Northwest Washington

  • Jetstar

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    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Montreal (YMQ) to Northwest Washington (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
Thu, 4 Sep. - Wed, 10 Sep.
YUL
Montreal
SEA
Seattle
AU$622 Return, found 2 days ago
AU$622
Return
found 2 days ago
Select Air Canada flight, departing Thu, 4 Sep. from Montreal to Seattle, returning Wed, 10 Sep., priced at AU$622 found 2 days ago
WestJet
Mon, 8 Sep. - Mon, 15 Sep.
YUL
Montreal
SEA
Seattle
AU$622 Return, found 2 days ago
AU$622
Return
found 2 days ago
Select WestJet flight, departing Mon, 8 Sep. from Montreal to Seattle, returning Mon, 15 Sep., priced at AU$622 found 2 days ago
Air Canada
Thu, 4 Sep. - Wed, 10 Sep.
YUL
Montreal
SEA
Seattle
AU$622 Return, found 2 days ago
AU$622
Return
found 2 days ago
Select Air Canada flight, departing Thu, 4 Sep. from Montreal to Seattle, returning Wed, 10 Sep., priced at AU$622 found 2 days ago
United
Thu, 4 Sep. - Wed, 10 Sep.
YUL
Montreal
SEA
Seattle
AU$631 Return, found 2 days ago
AU$631
Return
found 2 days ago
Select United flight, departing Thu, 4 Sep. from Montreal to Seattle, returning Wed, 10 Sep., priced at AU$631 found 2 days ago
American Airlines
Thu, 4 Sep. - Wed, 10 Sep.
YUL
Montreal
SEA
Seattle
AU$701 Return, found 2 days ago
AU$701
Return
found 2 days ago
Select American Airlines flight, departing Thu, 4 Sep. from Montreal to Seattle, returning Wed, 10 Sep., priced at AU$701 found 2 days ago
Delta
Thu, 4 Sep. - Wed, 10 Sep.
YUL
Montreal
SEA
Seattle
AU$701 Return, found 2 days ago
AU$701
Return
found 2 days ago
Select Delta flight, departing Thu, 4 Sep. from Montreal to Seattle, returning Wed, 10 Sep., priced at AU$701 found 2 days ago
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