Cheap flights from Montreal to Puget Sound from CA $261

View CA $261 flight on Fri, Oct. 24, 2025Opens in a new window

Popular airlines from Montreal to Puget Sound

  • Air Canada

    Air Canada

  • WestJet

    WestJet

  • Flair Airlines

    Flair Airlines

  • American Airlines

    American Airlines

  • United

    United

  • Delta

    Delta

  • Porter Airlines

    Porter Airlines

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Cheap flights from Montreal (YMQ) to Puget Sound (SEA)

Prices were available within the past 7 days and start at CA $261 for one-way flights and CA $447 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Tue., Oct. 7 - Tue., Oct. 14
YUL
Montreal
SEA
Seattle
CA $447 Roundtrip, found 9 hours ago
CA $447
Roundtrip
found 9 hours ago
Select WestJet flight, departing Tue., Oct. 7 from Montreal to Seattle, returning Tue., Oct. 14, priced at CA $447 found 9 hours ago
WestJet
Thu., Aug. 28 - Thu., Sep. 4
YUL
Montreal
SEA
Seattle
CA $469 Roundtrip, found 9 hours ago
CA $469
Roundtrip
found 9 hours ago
Select WestJet flight, departing Thu., Aug. 28 from Montreal to Seattle, returning Thu., Sep. 4, priced at CA $469 found 9 hours ago
Air Canada
Sat., Sep. 13 - Sun., Sep. 21
YUL
Montreal
SEA
Seattle
CA $489 Roundtrip, found 1 day ago
CA $489
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sat., Sep. 13 from Montreal to Seattle, returning Sun., Sep. 21, priced at CA $489 found 1 day ago
American Airlines
Sat., Oct. 18 - Sat., Oct. 25
YUL
Montreal
SEA
Seattle
CA $497 Roundtrip, found 9 hours ago
CA $497
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Sat., Oct. 18 from Montreal to Seattle, returning Sat., Oct. 25, priced at CA $497 found 9 hours ago
United
Sat., Oct. 18 - Sat., Oct. 25
YUL
Montreal
SEA
Seattle
CA $500 Roundtrip, found 9 hours ago
CA $500
Roundtrip
found 9 hours ago
Select United flight, departing Sat., Oct. 18 from Montreal to Seattle, returning Sat., Oct. 25, priced at CA $500 found 9 hours ago
Delta
Sat., Oct. 18 - Sat., Oct. 25
YUL
Montreal
SEA
Seattle
CA $508 Roundtrip, found 9 hours ago
CA $508
Roundtrip
found 9 hours ago
Select Delta flight, departing Sat., Oct. 18 from Montreal to Seattle, returning Sat., Oct. 25, priced at CA $508 found 9 hours ago
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