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St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport flight

Explore the cheapest one-way and round-trip flights from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport over the next 90 days, with one-way fares from $193 and round-trip from $593. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      STL 12:10 PM
      2h 31m
      YUL 3:41 PM
      St. Louis - Montreal | Thu, Oct 22 | Air Canada
      YUL 4:55 PM
      2h 46m
      STL 6:41 PM
      Montreal - St. Louis | Sun, Oct 25 | Air Canada
      $621 $1,104
      44% off
      44% off
      $1,104 $621
    • STL 12:10 PM
      2h 31m
      YUL 3:41 PM
      St. Louis - Montreal | Thu, Oct 22 | United Airlines
      YUL 4:55 PM
      2h 46m
      STL 6:41 PM
      Montreal - St. Louis | Sun, Oct 25 | Air Canada
      $706 $1,104
      36% off
      36% off
      $1,104 $706
    • STL 6:00 AM
      5h 26m
      YUL 12:26 PM
      St. Louis - Montreal | Mon, Nov 2 | American Airlines
      YUL 7:33 AM
      6h 10m
      STL 12:43 PM
      Montreal - St. Louis | Sat, Nov 7 | American Airlines
      $593 $1,104
      46% off
      46% off
      $1,104 $593
    • STL 7:30 AM
      5h 30m
      YUL 2:00 PM
      St. Louis - Montreal | Mon, Nov 2 | United Airlines
      YUL 7:33 AM
      6h 10m
      STL 12:43 PM
      Montreal - St. Louis | Sat, Nov 7 | American Airlines
      $616
      44% off
      $1,104 $616
    • STL 2:25 PM
      8h 29m
      YUL 11:54 PM
      St. Louis - Montreal | Mon, Nov 2 | Delta Air Lines
      YUL 7:33 AM
      6h 10m
      STL 12:43 PM
      Montreal - St. Louis | Sat, Nov 7 | American Airlines
      $639
      42% off
      $1,104 $639
    • STL 4:05 PM
      7h 20m
      YUL 12:25 AM
      St. Louis - Montreal | Mon, Nov 2 | Air Canada
      YUL 2:24 PM
      6h 6m
      STL 7:30 PM
      Montreal - St. Louis | Sat, Nov 7 | American Airlines
      $641
      42% off
      $1,104 $641
    • STL 7:26 AM
      8h 41m
      YUL 5:07 PM
      St. Louis - Montreal | Tue, Dec 1 | American Airlines
      YUL 11:10 AM
      5h 16m
      STL 3:26 PM
      Montreal - St. Louis | Fri, Dec 4 | Air Canada
      $728
      34% off
      $1,104 $728
    • STL 4:05 PM
      6h 20m
      YUL 11:25 PM
      St. Louis - Montreal | Tue, Dec 1 | Air Canada
      YUL 11:10 AM
      5h 16m
      STL 3:26 PM
      Montreal - St. Louis | Fri, Dec 4 | Air Canada
      $779
      28% off
      $1,104 $779
    • STL 7:29 AM
      8h 23m
      YUL 4:52 PM
      St. Louis - Montreal | Tue, Oct 20 | American Airlines
      YUL 10:32 AM
      11h 20m
      STL 8:52 PM
      Montreal - St. Louis | Mon, Oct 26 | American Airlines
      $797
      28% off
      $1,104 $797
    • STL 1:00 PM
      17h 25m
      1 stop
      YMQ 2:00 PM
      St. Louis - Montreal | Sun, Oct 18 | Normal Airline
      YMQ 3:00 PM
      6h
      Nonstop
      STL 4:00 PM
      Montreal - St. Louis | Tue, Oct 20 | Normal Airline
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    • Cheapest
      STL 8:15 PM
      14h 10m
      1 stop
      YUL 11:25 AM
      St. Louis - Montreal | Sat, Nov 21 | American Airlines
      $193 $847
      77% off
      77% off
      $847 $193
    • STL 8:15 PM
      14h 10m
      1 stop
      YUL 11:25 AM
      St. Louis - Montreal | Mon, Nov 30 | American Airlines
      $270 $847
      68% off
      68% off
      $847 $270
    • STL 5:00 AM
      10h 52m
      1 stop
      YUL 4:52 PM
      St. Louis - Montreal | Mon, Nov 9 | American Airlines
      $279 $847
      67% off
      67% off
      $847 $279
    • STL 7:29 AM
      8h 23m
      1 stop
      YUL 4:52 PM
      St. Louis - Montreal | Tue, Nov 10 | American Airlines
      $279
      67% off
      $847 $279
    • STL 8:15 PM
      14h 10m
      1 stop
      YUL 11:25 AM
      St. Louis - Montreal | Tue, Dec 1 | American Airlines
      $279
      67% off
      $847 $279
    • STL 5:00 AM
      5h 44m
      1 stop
      YUL 11:44 AM
      St. Louis - Montreal | Tue, Nov 3 | American Airlines
      $282
      67% off
      $847 $282
    • STL 5:00 AM
      5h 44m
      1 stop
      YUL 11:44 AM
      St. Louis - Montreal | Wed, Oct 21 | American Airlines
      $282
      67% off
      $847 $282
    • STL 6:53 AM
      5h 58m
      1 stop
      YUL 1:51 PM
      St. Louis - Montreal | Sun, Oct 18 | American Airlines
      $302
      64% off
      $847 $302
    • STL 6:47 AM
      5h 57m
      1 stop
      YUL 1:44 PM
      St. Louis - Montreal | Fri, Nov 27 | American Airlines
      $303
      64% off
      $847 $303
    • STL 1:00 PM
      17h 25m
      1 stop
      YMQ 2:00 PM
      St. Louis - Montreal | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      STL 12:10 PM
      2h 31m
      Nonstop
      YUL 3:41 PM
      St. Louis - Montreal | Fri, Oct 23 | Air Canada
      $604 $746
      19% off
      19% off
      $746 $604
    • STL 1:00 PM
      17h 25m
      1 stop
      YMQ 2:00 PM
      St. Louis - Montreal | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      STL 12:10 PM
      2h 31m
      Nonstop
      YUL 3:41 PM
      St. Louis - Montreal | Fri, Oct 23 | Air Canada
      $604 $746
      19% off
      19% off
      $746 $604
    • STL 1:00 PM
      17h 25m
      1 stop
      YMQ 2:00 PM
      St. Louis - Montreal | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      STL 12:10 PM
      2h 31m
      Nonstop
      YUL 3:41 PM
      St. Louis - Montreal | Fri, Oct 23 | Air Canada
      $604 $746
      19% off
      19% off
      $746 $604
    • STL 1:00 PM
      17h 25m
      1 stop
      YMQ 2:00 PM
      St. Louis - Montreal | Sun, Oct 18 | Normal Airline
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    • STL 12:10 PM
      2h 31m
      Nonstop
      YUL 3:41 PM
      St. Louis - Montreal | Fri, Oct 23 | Air Canada
      $604 $862
      30% off
      30% off
      $862 $604
    • STL 12:10 PM
      2h 31m
      Nonstop
      YUL 3:41 PM
      St. Louis - Montreal | Fri, Oct 23 | United Airlines
      $698 $862
      19% off
      19% off
      $862 $698
    • STL 1:00 PM
      17h 25m
      1 stop
      YMQ 2:00 PM
      St. Louis - Montreal | Sun, Oct 18 | Normal Airline
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Displayed flight fares from St. Louis to Montreal are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport?

The cheapest airline flying from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport is American Airlines (from $193) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From $193
Frontier Airlines
From $297
United Airlines
From $312
Air Canada
From $323
WestJet
From $345
Delta Air Lines
From $364

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What is the flight schedule from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport?

Check the schedule for flights from St. Louis to Montreal and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AC8688

    St. Louis Lambert International Airport

    1:25 PM

    STL

    2h 31m

    4:56 PM

    YUL

    S M T W T F S
    Search

  2. WS8832

    St. Louis Lambert International Airport

    5:35 PM

    STL

    1h 39m

    Nonstop

    8:14 PM

    ATL

    S M T W T F S
    Search

  3. WS7924

    Hartsfield–Jackson Atlanta International Airport

    9:17 PM

    ATL

    2h 37m

    Nonstop

    11:54 PM

    YUL

    S M T W T F S

  4. UA4454

    St. Louis Lambert International Airport

    1:00 PM

    STL

    2h 6m

    Nonstop

    4:06 PM

    IAD

    S M T W T F S
    Search

  5. UA3602

    Dulles International Airport

    5:50 PM

    IAD

    1h 58m

    Nonstop

    7:48 PM

    YUL

    S M T W T F S

  6. WS8834

    St. Louis Lambert International Airport

    10:30 AM

    STL

    1h 35m

    Nonstop

    1:05 PM

    ATL

    S M T W T F S
    Search

  7. WS6365

    Hartsfield–Jackson Atlanta International Airport

    3:00 PM

    ATL

    2h 38m

    Nonstop

    5:38 PM

    YUL

    S M T W T - S

  8. UA577

    St. Louis Lambert International Airport

    7:30 AM

    STL

    2h 30m

    Nonstop

    11:00 AM

    EWR

    S M T W T F S
    Search

  9. UA3715

    Newark Liberty Intl. Airport Airport

    2:41 PM

    EWR

    1h 40m

    Nonstop

    4:21 PM

    YUL

    S M T W T F S

  10. AA1515

    St. Louis Lambert International Airport

    5:32 AM

    STL

    1h 57m

    Nonstop

    8:29 AM

    CLT

    S M T W T F S
    Search

  11. AA5350

    Charlotte Douglas International Airport

    11:10 AM

    CLT

    2h 33m

    Nonstop

    1:43 PM

    YUL

    S M T W T F S

  12. WS8542

    St. Louis Lambert International Airport

    6:47 AM

    STL

    1h 33m

    Nonstop

    9:20 AM

    DTW

    S M T W T F S
    Search

  13. WS7078

    Detroit Metropolitan Wayne County Airport

    2:10 PM

    DTW

    1h 49m

    Nonstop

    3:59 PM

    YUL

    S M T W T F S

  14. AA1997

    St. Louis Lambert International Airport

    7:28 AM

    STL

    1h 31m

    Nonstop

    8:59 AM

    ORD

    S M T W T F S
    Search

  15. AA3602

    O'Hare Intl. Airport

    1:29 PM

    ORD

    2h 23m

    Nonstop

    4:52 PM

    YUL

    S M T W T F S

  16. UA560

    St. Louis Lambert International Airport

    12:20 PM

    STL

    2h 27m

    Nonstop

    3:47 PM

    EWR

    S M T W T - S
    Search

  17. UA3554

    Newark Liberty Intl. Airport Airport

    8:01 PM

    EWR

    1h 41m

    Nonstop

    9:42 PM

    YUL

    S M T W T F S

  18. WS8833

    St. Louis Lambert International Airport

    6:00 AM

    STL

    1h 38m

    Nonstop

    8:38 AM

    ATL

    S M T W T F S
    Search

  19. WS6365

    Hartsfield–Jackson Atlanta International Airport

    3:00 PM

    ATL

    2h 38m

    Nonstop

    5:38 PM

    YUL

    S M T W T - S
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About St. Louis Lambert International Airport and Montreal Pierre Elliott Trudeau Airport

Learn about St. Louis Lambert International Airport (STL) and Montreal Pierre Elliott Trudeau Airport (YUL) — including location, terminals, transportation, and travel tips.

Flight distance 1,558.52 km
Cheapest one-way ticket price $193
Cheapest return ticket price $593

FAQs for St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport Flights

  • How long is the flight from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport?

    St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport takes about 3 hours 12 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 1 daily flights from St. Louis Lambert International Airport (STL) to Montreal Pierre Elliott Trudeau Airport (YUL).
  • The earliest flight from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport departs at 09:30, and the last departs at 12:10, with about 2 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from St. Louis Lambert International Airport (STL) to Montreal Pierre Elliott Trudeau Airport (YUL) is quite popular. Without considering departure times or holidays, tickets cost around $668 in October, the most expensive month to book this route.
  • The earliest flight departs from St. Louis Lambert International Airport (STL) at 09:50 and arrives in Montreal Pierre Elliott Trudeau Airport (YUL) at 13:13.
    • The distance from Montréal-Pierre Elliott Trudeau International Airport to downtown is about 15 km. It takes about 30 minutes by taxi.
    • The distance from Montreal Metropolitan Airport to downtown is about 11 km. It takes about 30 minutes by taxi.
  • Air Canada is a very popular airline operating an average of 3 flights per month.
  • One-way flights from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport currently start from $193, and round-trip fares start from $593. The current lowest fare is a American Airlines flight departing on Sat, Nov 21; prices may vary depending on availability.
  • Yes. Air Canada and United Airlines operate direct flights from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport, with an average flight time of 3 hours 39 minutes, and around 13 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport is $423. Prices may vary depending on the departure date, airline, and availability.
  • St. Louis Lambert International Airport to Montreal Pierre Elliott Trudeau Airport operates around 14 weekly flights, mainly by Air Canada and United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter St. Louis Lambert International Airport and Montreal Pierre Elliott Trudeau Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

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