Travel with Air Canada from St. Louis, MO to Montréal (STL - YUL) from CAD 477*

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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 St. Louis, MO and Montréal - our lowest fares in cash

Aug 2026
FromCAD 476*
One way/Economy
Sep 2026
FromCAD 476*
One way/Economy
Oct 2026
FromCAD 477*
One way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label CAD 476
cmp-daily-histogram-bars-legend-max-price-aria-label CAD 736
Displaying fares for August-2026
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  • STL–YUL, Aug 23, 2026: From CAD 712
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    • RangeCAD 476-CAD 736

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

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

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    *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.

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