Travel with Air Canada from Montréal to St. Louis, MO (YUL - STL) from CAD 457*

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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 St. Louis, MO - our lowest fares in cash

Aug 2026
FromCAD 974*
One way/Economy
Sep 2026
FromCAD 457*
One way/Economy
Oct 2026
FromCAD 457*
One way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label CAD 457
cmp-daily-histogram-bars-legend-max-price-aria-label CAD 1.1K
Displaying fares for August-2026
  • YUL–STL, Aug 26, 2026: From CAD 1,084
    26

    We

    AUG

  • YUL–STL, Aug 27, 2026: From CAD 1,084
    27

    Th

  • YUL–STL, Aug 28, 2026: From CAD 1,084
    28

    Fr

  • YUL–STL, Aug 29, 2026: From CAD 974
    29

    Sa

  • YUL–STL, Aug 30, 2026: From CAD 974
    30

    Su

  • YUL–STL, Aug 31, 2026: From CAD 974
    31

    Mo

  • YUL–STL, Sep 01, 2026: From CAD 974
    01

    Tu

    SEP

  • YUL–STL, Sep 02, 2026: From CAD 885
    02

    We

  • YUL–STL, Sep 03, 2026: From CAD 885
    03

    Th

  • YUL–STL, Sep 04, 2026: From CAD 885
    04

    Fr

  • YUL–STL, Sep 05, 2026: From CAD 744
    05

    Sa

  • YUL–STL, Sep 06, 2026: From CAD 744
    06

    Su

  • YUL–STL, Sep 07, 2026: From CAD 744
    07

    Mo

  • YUL–STL, Sep 08, 2026: From CAD 744
    08

    Tu

  • YUL–STL, Sep 09, 2026: From CAD 633
    09

    We

  • YUL–STL, Sep 10, 2026: From CAD 633
    10

    Th

  • YUL–STL, Sep 11, 2026: From CAD 633
    11

    Fr

  • YUL–STL, Sep 12, 2026: From CAD 645
    12

    Sa

  • YUL–STL, Sep 13, 2026: From CAD 645
    13

    Su

  • YUL–STL, Sep 14, 2026: From CAD 645
    14

    Mo

  • YUL–STL, Sep 15, 2026: From CAD 645
    15

    Tu

  • YUL–STL, Sep 16, 2026: From CAD 457
    16

    We

  • YUL–STL, Sep 17, 2026: From CAD 468
    17

    Th

  • YUL–STL, Sep 18, 2026: From CAD 468
    18

    Fr

  • YUL–STL, Sep 19, 2026: From CAD 468
    19

    Sa

  • YUL–STL, Sep 20, 2026: From CAD 468
    20

    Su

  • YUL–STL, Sep 21, 2026: From CAD 522
    21

    Mo

  • YUL–STL, Sep 22, 2026: From CAD 468
    22

    Tu

  • YUL–STL, Sep 23, 2026: From CAD 457
    23

    We

  • YUL–STL, Sep 24, 2026: From CAD 457
    24

    Th

  • YUL–STL, Sep 25, 2026: From CAD 468
    25

    Fr

    • RangeCAD 457-CAD 1,084

    *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 St. Louis, MO (STL) | Air Canada

    Flights between Montréal and St. Louis, MO - our lowest fares in points

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    Flights between Montréal and St. Louis, MO - our lowest fares in points
    From
    To
    Fare Type
    Departure
    Price
    Montréal (YUL)St. Louis, MO (STL)One-way
    /
    Economy    		 Nov 28, 2026

    From

    40,000 pts
    + CAD 687

    Viewed: 15 hours ago

    Montréal (YUL)St. Louis, MO (STL)One-way
    /
    Economy    		 Nov 29, 2026

    From

    136,800 pts
    + CAD 681

    Viewed: 15 hours ago

    Montréal (YUL)St. Louis, MO (STL)One-way
    /
    Economy    		 Oct 06, 2026

    From

    10,000 pts
    + CAD 172

    Viewed: 1 day ago

    Montréal (YUL)St. Louis, MO (STL)One-way
    /
    Economy    		 Oct 07, 2026

    From

    10,000 pts
    + CAD 172

    Viewed: 1 day ago

    Montréal (YUL)St. Louis, MO (STL)One-way
    /
    Economy    		 Oct 08, 2026

    From

    43,400 pts
    + CAD 274

    Viewed: 1 day 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 St. Louis, MO