Travel with Air Canada from Seattle to Montréal (SEA - YUL) from USD 203*

Promotion code

*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 Seattle and Montréal - our lowest fares in cash

Sep 2026
FromUSD 227*
One way/Economy
Oct 2026
FromUSD 219*
One way/Economy
Nov 2026
FromUSD 219*
One way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label USD 219
cmp-daily-histogram-bars-legend-max-price-aria-label USD 865
Displaying fares for September-2026
  • SEA–YUL, Sep 16, 2026: From USD 865
    16

    We

    SEP

  • SEA–YUL, Sep 17, 2026: From USD 436
    17

    Th

  • SEA–YUL, Sep 18, 2026: From USD 843
    18

    Fr

  • SEA–YUL, Sep 19, 2026: From USD 696
    19

    Sa

  • SEA–YUL, Sep 20, 2026: From USD 750
    20

    Su

  • SEA–YUL, Sep 21, 2026: From USD 663
    21

    Mo

  • SEA–YUL, Sep 22, 2026: From USD 349
    22

    Tu

  • SEA–YUL, Sep 23, 2026: From USD 565
    23

    We

  • SEA–YUL, Sep 24, 2026: From USD 689
    24

    Th

  • SEA–YUL, Sep 25, 2026: From USD 761
    25

    Fr

  • SEA–YUL, Sep 26, 2026: From USD 565
    26

    Sa

  • SEA–YUL, Sep 27, 2026: From USD 388
    27

    Su

  • SEA–YUL, Sep 28, 2026: From USD 332
    28

    Mo

  • SEA–YUL, Sep 29, 2026: From USD 227
    29

    Tu

  • SEA–YUL, Sep 30, 2026: From USD 345
    30

    We

  • SEA–YUL, Oct 01, 2026: From USD 238
    01

    Th

    OCT

  • SEA–YUL, Oct 02, 2026: From USD 326
    02

    Fr

  • SEA–YUL, Oct 03, 2026: From USD 238
    03

    Sa

  • SEA–YUL, Oct 04, 2026: From USD 326
    04

    Su

  • SEA–YUL, Oct 05, 2026: From USD 238
    05

    Mo

  • SEA–YUL, Oct 06, 2026: From USD 219
    06

    Tu

  • SEA–YUL, Oct 07, 2026: From USD 219
    07

    We

  • SEA–YUL, Oct 08, 2026: From USD 250
    08

    Th

  • SEA–YUL, Oct 09, 2026: From USD 247
    09

    Fr

  • SEA–YUL, Oct 10, 2026: From USD 238
    10

    Sa

  • SEA–YUL, Oct 11, 2026: From USD 219
    11

    Su

  • SEA–YUL, Oct 12, 2026: From USD 238
    12

    Mo

  • SEA–YUL, Oct 13, 2026: From USD 219
    13

    Tu

  • SEA–YUL, Oct 14, 2026: From USD 219
    14

    We

  • SEA–YUL, Oct 15, 2026: From USD 219
    15

    Th

    • RangeUSD 219-USD 865

    *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.

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