Travel with Air Canada from Montréal to Seattle (YUL - SEA) from CAD 356*

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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

Sep 2026
FromCAD 471*
One way/Economy
Oct 2026
FromCAD 356*
One way/Economy
Nov 2026
FromCAD 356*
One way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label CAD 356
cmp-daily-histogram-bars-legend-max-price-aria-label CAD 945
Displaying fares for September-2026
  • YUL–SEA, Sep 16, 2026: From CAD 818
    16

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    SEP

  • YUL–SEA, Sep 17, 2026: From CAD 564
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  • YUL–SEA, Sep 18, 2026: From CAD 945
    18

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  • YUL–SEA, Sep 19, 2026: From CAD 514
    19

    Sa

  • YUL–SEA, Sep 20, 2026: From CAD 940
    20

    Su

  • YUL–SEA, Sep 21, 2026: From CAD 564
    21

    Mo

  • YUL–SEA, Sep 22, 2026: From CAD 471
    22

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  • YUL–SEA, Sep 23, 2026: From CAD 471
    23

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  • YUL–SEA, Sep 24, 2026: From CAD 521
    24

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  • YUL–SEA, Sep 25, 2026: From CAD 521
    25

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  • YUL–SEA, Sep 26, 2026: From CAD 471
    26

    Sa

  • YUL–SEA, Sep 27, 2026: From CAD 762
    27

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  • YUL–SEA, Sep 28, 2026: From CAD 733
    28

    Mo

  • YUL–SEA, Sep 29, 2026: From CAD 471
    29

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  • YUL–SEA, Sep 30, 2026: From CAD 471
    30

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  • YUL–SEA, Oct 01, 2026: From CAD 379
    01

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    OCT

  • YUL–SEA, Oct 02, 2026: From CAD 423
    02

    Fr

  • YUL–SEA, Oct 03, 2026: From CAD 400
    03

    Sa

  • YUL–SEA, Oct 04, 2026: From CAD 595
    04

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  • YUL–SEA, Oct 05, 2026: From CAD 483
    05

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  • YUL–SEA, Oct 06, 2026: From CAD 356
    06

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  • YUL–SEA, Oct 07, 2026: From CAD 356
    07

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  • YUL–SEA, Oct 08, 2026: From CAD 379
    08

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  • YUL–SEA, Oct 09, 2026: From CAD 474
    09

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  • YUL–SEA, Oct 10, 2026: From CAD 471
    10

    Sa

  • YUL–SEA, Oct 11, 2026: From CAD 379
    11

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  • YUL–SEA, Oct 12, 2026: From CAD 638
    12

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  • YUL–SEA, Oct 13, 2026: From CAD 471
    13

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  • YUL–SEA, Oct 14, 2026: From CAD 356
    14

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  • YUL–SEA, Oct 15, 2026: From CAD 379
    15

    Th

    • RangeCAD 356-CAD 945

    *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 24, 2026

    From

    14,413 pts
    + CAD 173

    Viewed: 10 hours ago

    Montréal (YUL)Seattle (SEA)One-way
    /
    Economy    		 Dec 28, 2026

    From

    78,555 pts
    + CAD 563

    Viewed: 3 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