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

Explore the cheapest one-way and round-trip flights from Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport over the next 90 days, with one-way fares from $229 and round-trip from $452. Based on Trip.com's latest 7-day flight data.

    • YUL 12:10 PM
      8h 54m
      1 stop
      STL 8:04 PM
      Montreal - St. Louis | Thu, Nov 19 | American Airlines
      STL 8:12 PM
      14h 14m
      1 stop
      YUL 11:26 AM
      St. Louis - Montreal | Mon, Nov 23 | American Airlines
      $452 $714
      37% off
      37% off
      $714 $452
    • YUL 12:08 PM
      8h 50m
      1 stop
      STL 7:58 PM
      Montreal - St. Louis | Mon, Dec 7 | American Airlines
      STL 11:37 AM
      22h 51m
      1 stop
      YUL 11:28 AM
      St. Louis - Montreal | Thu, Dec 10 | American Airlines
      $533 $714
      25% off
      25% off
      $714 $533
    • YUL 6:00 AM
      10h 43m
      1 stop
      STL 3:43 PM
      Montreal - St. Louis | Thu, Nov 19 | United Airlines
      STL 6:00 AM
      14h 17m
      1 stop
      YUL 9:17 PM
      St. Louis - Montreal | Thu, Nov 26 | United Airlines
      $540 $714
      24% off
      24% off
      $714 $540
    • YUL 4:45 PM
      20h 37m
      1 stop
      STL 12:22 PM
      Montreal - St. Louis | Tue, Dec 1 | United Airlines
      STL 10:50 AM
      9h 27m
      1 stop
      YUL 9:17 PM
      St. Louis - Montreal | Tue, Dec 8 | United Airlines
      $540
      24% off
      $714 $540
    • YUL 6:00 AM
      13h 18m
      1 stop
      STL 6:18 PM
      Montreal - St. Louis | Thu, Dec 17 | United Airlines
      STL 5:05 AM
      15h 12m
      1 stop
      YUL 9:17 PM
      St. Louis - Montreal | Thu, Dec 24 | United Airlines
      $540
      24% off
      $714 $540
    • YUL 6:00 AM
      16h 40m
      1 stop
      STL 9:40 PM
      Montreal - St. Louis | Wed, Nov 18 | United Airlines
      STL 6:50 PM
      18h 10m
      1 stop
      YUL 2:00 PM
      St. Louis - Montreal | Wed, Nov 25 | United Airlines
      $540
      24% off
      $714 $540
    • YUL 6:00 AM
      17h 59m
      1 stop
      STL 10:59 PM
      Montreal - St. Louis | Tue, Dec 8 | United Airlines
      STL 10:50 AM
      9h 27m
      1 stop
      YUL 9:17 PM
      St. Louis - Montreal | Tue, Dec 15 | United Airlines
      $540
      24% off
      $714 $540
    • YUL 12:10 PM
      12h 49m
      1 stop
      STL 11:59 PM
      Montreal - St. Louis | Thu, Nov 12 | American Airlines
      STL 5:00 AM
      5h 26m
      1 stop
      YUL 11:26 AM
      St. Louis - Montreal | Thu, Nov 19 | American Airlines
      $558
      22% off
      $714 $558
    • YUL 6:00 AM
      7h 10m
      1 stop
      STL 12:10 PM
      Montreal - St. Louis | Thu, Nov 26 | United Airlines
      STL 8:30 AM
      5h 31m
      1 stop
      YUL 3:01 PM
      St. Louis - Montreal | Tue, Dec 1 | United Airlines
      $563
      21% off
      $714 $563
    • YMQ 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
      STL 3:00 PM
      6h
      Nonstop
      YMQ 4:00 PM
      St. Louis - Montreal | Fri, Nov 6 | Normal Airline
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    • Cheapest
      YUL 12:10 PM
      11h 5m
      1 stop
      STL 10:15 PM
      Montreal - St. Louis | Wed, Nov 18 | American Airlines
      $229 $314
      27% off
      27% off
      $314 $229
    • Cheapest
      YUL 12:10 PM
      11h 5m
      1 stop
      STL 10:15 PM
      Montreal - St. Louis | Wed, Nov 4 | American Airlines
      $229 $314
      27% off
      27% off
      $314 $229
    • Cheapest
      YUL 12:10 PM
      12h 45m
      1 stop
      STL 11:55 PM
      Montreal - St. Louis | Thu, Nov 5 | American Airlines
      $229 $314
      27% off
      27% off
      $314 $229
    • Cheapest
      YUL 12:10 PM
      12h 49m
      1 stop
      STL 11:59 PM
      Montreal - St. Louis | Thu, Nov 12 | American Airlines
      $229
      27% off
      $314 $229
    • YUL 12:10 PM
      12h 49m
      1 stop
      STL 11:59 PM
      Montreal - St. Louis | Sat, Nov 14 | American Airlines
      $237
      25% off
      $314 $237
    • YUL 4:00 PM
      22h 22m
      1 stop
      STL 1:22 PM
      Montreal - St. Louis | Thu, Dec 24 | American Airlines
      $243
      23% off
      $314 $243
    • YUL 12:10 PM
      12h 49m
      1 stop
      STL 11:59 PM
      Montreal - St. Louis | Tue, Dec 15 | American Airlines
      $247
      21% off
      $314 $247
    • YUL 12:10 PM
      11h 5m
      1 stop
      STL 10:15 PM
      Montreal - St. Louis | Wed, Dec 16 | American Airlines
      $247
      21% off
      $314 $247
    • YUL 12:10 PM
      11h 14m
      1 stop
      STL 10:24 PM
      Montreal - St. Louis | Sat, Dec 12 | American Airlines
      $247
      21% off
      $314 $247
    • YMQ 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
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    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Thu, Nov 12 | Air Canada
      $346 $550
      37% off
      37% off
      $550 $346
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Mon, Dec 7 | Air Canada
      $353 $550
      36% off
      36% off
      $550 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Wed, Nov 25 | Air Canada
      $353 $550
      36% off
      36% off
      $550 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Fri, Dec 11 | Air Canada
      $353
      36% off
      $550 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Sun, Dec 13 | Air Canada
      $353
      36% off
      $550 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Fri, Dec 4 | Air Canada
      $354
      36% off
      $550 $354
    • YUL 2:43 PM
      6h 26m
      1 stop
      STL 8:09 PM
      Montreal - St. Louis | Sat, Nov 14 | Delta Air Lines
      $354
      36% off
      $550 $354
    • YUL 7:10 AM
      6h 11m
      1 stop
      STL 12:21 PM
      Montreal - St. Louis | Wed, Nov 25 | Delta Air Lines
      $359
      35% off
      $550 $359
    • YUL 2:23 PM
      6h 7m
      1 stop
      STL 7:30 PM
      Montreal - St. Louis | Tue, Dec 29 | American Airlines
      $397
      28% off
      $550 $397
    • YMQ 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
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    • YUL 4:50 PM
      4h 39m
      1 stop
      STL 8:29 PM
      Montreal - St. Louis | Tue, Nov 17 | Delta Air Lines
      $356 $1,260
      72% off
      72% off
      $1,260 $356
    • YUL 4:50 PM
      4h 39m
      1 stop
      STL 8:29 PM
      Montreal - St. Louis | Sun, Nov 29 | WestJet
      $995 $1,260
      21% off
      21% off
      $1,260 $995
    • YUL 12:50 PM
      4h 45m
      1 stop
      STL 4:35 PM
      Montreal - St. Louis | Thu, Nov 26 | WestJet
      $482 $1,260
      62% off
      62% off
      $1,260 $482
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Thu, Nov 12 | Air Canada
      $346
      73% off
      $1,260 $346
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Sun, Dec 13 | Air Canada
      $353
      72% off
      $1,260 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Mon, Dec 7 | Air Canada
      $353
      72% off
      $1,260 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Wed, Nov 25 | Air Canada
      $353
      72% off
      $1,260 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Thu, Dec 3 | Air Canada
      $353
      72% off
      $1,260 $353
    • YUL 11:10 AM
      5h 16m
      1 stop
      STL 3:26 PM
      Montreal - St. Louis | Fri, Dec 11 | Air Canada
      $353
      72% off
      $1,260 $353
    • YMQ 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
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Displayed flight fares from Montreal to St. Louis 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 Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport?

The cheapest airline flying from Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport is Air Canada (from $221) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Air Canada
From $221
American Airlines
From $229
United Airlines
From $292
Delta Air Lines
From $297
Porter Airlines
From $324
WestJet
From $373

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AC8483

    Montreal Pierre Elliott Trudeau Airport

    6:10 PM

    YUL

    2h 42m

    Nonstop

    7:52 PM

    ORD

    S M T W T F S
    Search

  2. AA3292

    O'Hare Intl. Airport

    10:39 PM

    ORD

    1h 16m

    Nonstop

    11:55 PM

    STL

    S M T W T F S

  3. AC8477

    Montreal Pierre Elliott Trudeau Airport

    9:35 AM

    YUL

    2h 37m

    Nonstop

    11:12 AM

    ORD

    S M T W T F S
    Search

  4. AA772

    O'Hare Intl. Airport

    6:03 PM

    ORD

    1h 19m

    Nonstop

    7:22 PM

    STL

    S M T W T F S

  5. AA3602

    Montreal Pierre Elliott Trudeau Airport

    12:10 PM

    YUL

    3h 5m

    Nonstop

    2:15 PM

    ORD

    S M T W T F S
    Search

  6. AA3768

    O'Hare Intl. Airport

    8:50 PM

    ORD

    1h 24m

    Nonstop

    10:14 PM

    STL

    S M T W T F S

  7. AC8481

    Montreal Pierre Elliott Trudeau Airport

    6:10 PM

    YUL

    2h 42m

    Nonstop

    7:52 PM

    ORD

    S M T W T F S
    Search

  8. AA3292

    O'Hare Intl. Airport

    10:39 PM

    ORD

    1h 16m

    Nonstop

    11:55 PM

    STL

    S M T W T F S

  9. AA3602

    Montreal Pierre Elliott Trudeau Airport

    12:10 PM

    YUL

    3h 5m

    Nonstop

    2:15 PM

    ORD

    S M T W T F S
    Search

  10. AA3292

    O'Hare Intl. Airport

    10:39 PM

    ORD

    1h 16m

    Nonstop

    11:55 PM

    STL

    S M T W T F S

  11. AC736

    Montreal Pierre Elliott Trudeau Airport

    8:00 PM

    YUL

    1h 32m

    Nonstop

    9:32 PM

    LGA

    S M T W - F S
    Search

  12. F93287

    LaGuardia Airport

    9:25 AM

    LGA

    2h 38m

    Nonstop

    12:03 PM

    ATL

    S M T W T F S

  13. F94473

    Hartsfield–Jackson Atlanta International Airport

    4:47 PM

    ATL

    1h 53m

    Nonstop

    5:40 PM

    STL

    S - T - T - -

  14. AC8481

    Montreal Pierre Elliott Trudeau Airport

    6:10 PM

    YUL

    2h 42m

    Nonstop

    7:52 PM

    ORD

    S M T W T F S
    Search

  15. AA3484

    O'Hare Intl. Airport

    3:20 PM

    ORD

    1h 23m

    Nonstop

    4:43 PM

    STL

    S M T W T F S

  16. AC8483

    Montreal Pierre Elliott Trudeau Airport

    6:10 PM

    YUL

    2h 42m

    Nonstop

    7:52 PM

    ORD

    S M T W T F S
    Search

  17. AA6487

    O'Hare Intl. Airport

    3:18 PM

    ORD

    1h 28m

    Nonstop

    4:46 PM

    STL

    - - - - - F -

  18. AC8483

    Montreal Pierre Elliott Trudeau Airport

    6:10 PM

    YUL

    2h 42m

    Nonstop

    7:52 PM

    ORD

    S M T W T F S
    Search

  19. AA772

    O'Hare Intl. Airport

    6:03 PM

    ORD

    1h 19m

    Nonstop

    7:22 PM

    STL

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

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

Flight distance 1,558.52 km
Cheapest one-way ticket price $229
Cheapest return ticket price $452

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

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

    Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport takes about 2 hours 16 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Montreal Pierre Elliott Trudeau Airport (YUL) to St. Louis Lambert International Airport (STL).
  • The earliest flight from Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport departs at 16:55, and the last departs at 16:55, with about 1 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Montreal Pierre Elliott Trudeau Airport (YUL) to St. Louis Lambert International Airport (STL) is quite popular. Without considering departure times or holidays, tickets cost around $771 in October, the most expensive month to book this route.
  • The latest flight departs from Montreal Pierre Elliott Trudeau Airport (YUL) at 18:10 and arrives in St. Louis Lambert International Airport (STL) at 19:57.
    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.
  • Air Canada is a very popular airline operating an average of 6 flights per month.
  • One-way flights from Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport currently start from $229, and round-trip fares start from $452. The current lowest fare is a American Airlines flight departing on Wed, Nov 18; prices may vary depending on availability.
  • Yes. Air Canada operate direct flights from Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport, with an average flight time of 2 hours 15 minutes, and around 7 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 Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport is $413. Prices may vary depending on the departure date, airline, and availability.
  • Montreal Pierre Elliott Trudeau Airport to St. Louis Lambert International Airport operates around 2 weekly flights, mainly by Air Canada. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Montreal Pierre Elliott Trudeau Airport and St. Louis Lambert International 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.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.