Travel with Air Canada from Montréal to Seattle (YUL - SEA) from CAD 315*

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*Fares displayed have been collected within the last 48 hours and may no longer be available at the time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.

Flights between Montréal and Seattle - our lowest fares in cash

Aug 2026
FromCAD 338*
One way/Economy
Sep 2026
FromCAD 315*
One way/Economy
Oct 2026
FromCAD 315*
One way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label CAD 326
cmp-daily-histogram-bars-legend-max-price-aria-label CAD 1.6K
Displaying fares for August-2026
  • YUL–SEA, Aug 06, 2026: From CAD 1,159
    06

    Th

    AUG

  • YUL–SEA, Aug 07, 2026: From CAD 958
    07

    Fr

  • YUL–SEA, Aug 08, 2026: From CAD 1,086
    08

    Sa

  • YUL–SEA, Aug 09, 2026: From CAD 1,595
    09

    Su

  • YUL–SEA, Aug 10, 2026: From CAD 1,174
    10

    Mo

  • YUL–SEA, Aug 11, 2026: From CAD 899
    11

    Tu

  • YUL–SEA, Aug 12, 2026: From CAD 899
    12

    We

  • YUL–SEA, Aug 13, 2026: From CAD 480
    13

    Th

  • YUL–SEA, Aug 14, 2026: From CAD 736
    14

    Fr

  • YUL–SEA, Aug 15, 2026: From CAD 736
    15

    Sa

  • YUL–SEA, Aug 16, 2026: From CAD 720
    16

    Su

  • YUL–SEA, Aug 17, 2026: From CAD 480
    17

    Mo

  • YUL–SEA, Aug 18, 2026: From CAD 430
    18

    Tu

  • YUL–SEA, Aug 19, 2026: From CAD 430
    19

    We

  • YUL–SEA, Aug 20, 2026: From CAD 338
    20

    Th

  • YUL–SEA, Aug 21, 2026: From CAD 338
    21

    Fr

  • YUL–SEA, Aug 22, 2026: From CAD 358
    22

    Sa

  • YUL–SEA, Aug 23, 2026: From CAD 656
    23

    Su

  • YUL–SEA, Aug 24, 2026: From CAD 597
    24

    Mo

  • YUL–SEA, Aug 25, 2026: From CAD 358
    25

    Tu

  • YUL–SEA, Aug 26, 2026: From CAD 430
    26

    We

  • YUL–SEA, Aug 27, 2026: From CAD 338
    27

    Th

  • YUL–SEA, Aug 28, 2026: From CAD 476
    28

    Fr

  • YUL–SEA, Aug 29, 2026: From CAD 496
    29

    Sa

  • YUL–SEA, Aug 30, 2026: From CAD 720
    30

    Su

  • YUL–SEA, Aug 31, 2026: From CAD 597
    31

    Mo

  • YUL–SEA, Sep 01, 2026: From CAD 496
    01

    Tu

    SEP

  • YUL–SEA, Sep 02, 2026: From CAD 430
    02

    We

  • YUL–SEA, Sep 03, 2026: From CAD 496
    03

    Th

  • YUL–SEA, Sep 04, 2026: From CAD 553
    04

    Fr

  • YUL–SEA, Sep 05, 2026: From CAD 326
    05

    Sa

    • RangeCAD 326-CAD 1,595

    *Fares displayed have been collected within the last 48 hours and may no longer be available at the time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.

    Book flights from Montréal (YUL) to Seattle (SEA) | Air Canada

    Flights between Montréal and Seattle - our lowest fares in points

    pts
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    Flights between Montréal and Seattle - our lowest fares in points
    From
    To
    Fare Type
    Departure
    Price
    Montréal (YUL)Seattle (SEA)One-way
    /
    Economy    		 Sep 06, 2026

    From

    12,500 pts
    + CAD 173

    Viewed: 1 day ago

    Montréal (YUL)Seattle (SEA)One-way
    /
    Economy    		 Jul 23, 2027

    From

    13,800 pts
    + CAD 189

    Viewed: 23 hours ago

    Montréal (YUL)Seattle (SEA)One-way
    /
    Economy    		 Oct 05, 2026

    From

    14,000 pts
    + CAD 174

    Viewed: 19 hours ago

    Montréal (YUL)Seattle (SEA)One-way
    /
    Economy    		 Oct 04, 2026

    From

    18,900 pts
    + CAD 189

    Viewed: 19 hours ago

    *Points displayed do not reflect preferred pricing for Aeroplan Elite Status Members and/or Aeroplan Credit Cardholders. Prices have been collected within the past 48 hrs and may no longer be available at time of booking. Learn more about this offer. Additional baggage fees and charges for optional products and services may apply.

    Explore all routes from Montréal to Seattle