Trip.com
>
Cheap Flights
>
United States
>
Missouri
>
St. Louis
>
Montreal to St. Louis flight
>
Montréal-Pierre Elliott Trudeau International Airport to St. Louis Lambert International Airport flight

Explore the cheapest one-way and round-trip flights from Montréal-Pierre Elliott Trudeau International Airport to St. Louis Lambert International Airport over the next 90 days, with one-way fares from CAD 320 and round-trip from CAD 754. Based on Trip.com's latest 7-day flight data.

    • Cheapest
      YUL 12:10
      11h 5m
      1 stop
      STL 22:15
      Montreal - St. Louis | Sun, Nov 29 | American Airlines
      CAD 320 CAD 1,064
      70% off
      70% off
      CAD 1,064 CAD 320
    • Cheapest
      YUL 12:10
      11h 5m
      1 stop
      STL 22:15
      Montreal - St. Louis | Sun, Nov 15 | American Airlines
      CAD 320 CAD 1,064
      70% off
      70% off
      CAD 1,064 CAD 320
    • Cheapest
      YUL 12:10
      12h 45m
      1 stop
      STL 23:55
      Montreal - St. Louis | Mon, Nov 16 | American Airlines
      CAD 320 CAD 1,064
      70% off
      70% off
      CAD 1,064 CAD 320
    • Cheapest
      YUL 12:10
      12h 49m
      1 stop
      STL 23:59
      Montreal - St. Louis | Fri, Nov 20 | American Airlines
      CAD 320
      70% off
      CAD 1,064 CAD 320
    • Cheapest
      YUL 12:10
      12h 49m
      1 stop
      STL 23:59
      Montreal - St. Louis | Mon, Nov 23 | American Airlines
      CAD 320
      70% off
      CAD 1,064 CAD 320
    • YUL 12:10
      12h 49m
      1 stop
      STL 23:59
      Montreal - St. Louis | Sat, Nov 14 | American Airlines
      CAD 324
      70% off
      CAD 1,064 CAD 324
    • YUL 12:10
      12h 49m
      1 stop
      STL 23:59
      Montreal - St. Louis | Wed, Nov 25 | American Airlines
      CAD 331
      69% off
      CAD 1,064 CAD 331
    • YUL 12:10
      12h 49m
      1 stop
      STL 23:59
      Montreal - St. Louis | Sat, Dec 26 | American Airlines
      CAD 345
      68% off
      CAD 1,064 CAD 345
    • YUL 12:10
      11h 5m
      1 stop
      STL 22:15
      Montreal - St. Louis | Sun, Dec 27 | American Airlines
      CAD 345
      68% off
      CAD 1,064 CAD 345
    • YMQ 13:00
      17h 25m
      1 stop
      STL 14:00
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
      Find more flights
      Find more flights
    • YUL 06:00
      10h 43m
      1 stop
      STL 15:43
      Montreal - St. Louis | Wed, Nov 25 | United Airlines
      STL 06:00
      14h 17m
      1 stop
      YUL 21:17
      St. Louis - Montreal | Wed, Dec 2 | United Airlines
      CAD 754 CAD 999
      25% off
      25% off
      CAD 999 CAD 754
    • YUL 16:45
      20h 37m
      1 stop
      STL 12:22
      Montreal - St. Louis | Mon, Dec 7 | United Airlines
      STL 10:50
      9h 27m
      1 stop
      YUL 21:17
      St. Louis - Montreal | Mon, Dec 14 | United Airlines
      CAD 754 CAD 999
      25% off
      25% off
      CAD 999 CAD 754
    • YUL 06:00
      13h 18m
      1 stop
      STL 18:18
      Montreal - St. Louis | Wed, Dec 23 | United Airlines
      STL 05:05
      15h 12m
      1 stop
      YUL 21:17
      St. Louis - Montreal | Wed, Dec 30 | United Airlines
      CAD 754 CAD 999
      25% off
      25% off
      CAD 999 CAD 754
    • YUL 06:00
      16h 40m
      1 stop
      STL 21:40
      Montreal - St. Louis | Tue, Nov 24 | United Airlines
      STL 18:50
      18h 10m
      1 stop
      YUL 14:00
      St. Louis - Montreal | Tue, Dec 1 | United Airlines
      CAD 755
      24% off
      CAD 999 CAD 755
    • YUL 06:00
      17h 59m
      1 stop
      STL 22:59
      Montreal - St. Louis | Mon, Dec 14 | United Airlines
      STL 10:50
      9h 27m
      1 stop
      YUL 21:17
      St. Louis - Montreal | Mon, Dec 21 | United Airlines
      CAD 755
      24% off
      CAD 999 CAD 755
    • YUL 12:10
      12h 49m
      1 stop
      STL 23:59
      Montreal - St. Louis | Wed, Nov 18 | American Airlines
      STL 05:00
      5h 26m
      1 stop
      YUL 11:26
      St. Louis - Montreal | Wed, Nov 25 | American Airlines
      CAD 780
      22% off
      CAD 999 CAD 780
    • YUL 06:00
      7h 10m
      1 stop
      STL 12:10
      Montreal - St. Louis | Wed, Dec 2 | United Airlines
      STL 08:30
      5h 31m
      1 stop
      YUL 15:01
      St. Louis - Montreal | Mon, Dec 7 | United Airlines
      CAD 787
      21% off
      CAD 999 CAD 787
    • YUL 12:10
      11h 5m
      1 stop
      STL 22:15
      Montreal - St. Louis | Mon, Nov 23 | American Airlines
      STL 11:14
      23h 12m
      1 stop
      YUL 11:26
      St. Louis - Montreal | Mon, Nov 30 | American Airlines
      CAD 789
      21% off
      CAD 999 CAD 789
    • YUL 12:08
      8h 50m
      1 stop
      STL 19:58
      Montreal - St. Louis | Wed, Dec 9 | American Airlines
      STL 11:37
      22h 51m
      1 stop
      YUL 11:28
      St. Louis - Montreal | Wed, Dec 16 | American Airlines
      CAD 789
      21% off
      CAD 999 CAD 789
    • YMQ 13:00
      17h 25m
      1 stop
      STL 14:00
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
      STL 15:00
      6h
      Direct
      YMQ 16:00
      St. Louis - Montreal | Fri, Nov 6 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      YUL 16:55
      2h 46m
      Direct
      STL 18:41
      Montreal - St. Louis | Tue, Nov 3 | Air Canada
      CAD 782 CAD 1,064
      27% off
      27% off
      CAD 1,064 CAD 782
    • YUL 16:55
      2h 46m
      Direct
      STL 18:41
      Montreal - St. Louis | Tue, Nov 3 | United Airlines
      CAD 840 CAD 1,064
      21% off
      21% off
      CAD 1,064 CAD 840
    • YMQ 13:00
      17h 25m
      1 stop
      STL 14:00
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
      Find more flights
      Find more flights
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Thu, Nov 12 | Air Canada
      CAD 484 CAD 769
      37% off
      37% off
      CAD 769 CAD 484
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Mon, Dec 7 | Air Canada
      CAD 493 CAD 769
      36% off
      36% off
      CAD 769 CAD 493
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Wed, Nov 25 | Air Canada
      CAD 494 CAD 769
      36% off
      36% off
      CAD 769 CAD 494
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Fri, Dec 11 | Air Canada
      CAD 494
      36% off
      CAD 769 CAD 494
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Sun, Dec 13 | Air Canada
      CAD 494
      36% off
      CAD 769 CAD 494
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Fri, Dec 4 | Air Canada
      CAD 494
      36% off
      CAD 769 CAD 494
    • YUL 14:43
      6h 26m
      1 stop
      STL 20:09
      Montreal - St. Louis | Sat, Nov 14 | Delta Air Lines
      CAD 495
      36% off
      CAD 769 CAD 495
    • YUL 07:10
      6h 11m
      1 stop
      STL 12:21
      Montreal - St. Louis | Wed, Nov 25 | Delta Air Lines
      CAD 502
      35% off
      CAD 769 CAD 502
    • YUL 14:23
      6h 7m
      1 stop
      STL 19:30
      Montreal - St. Louis | Tue, Dec 29 | American Airlines
      CAD 555
      28% off
      CAD 769 CAD 555
    • YMQ 13:00
      17h 25m
      1 stop
      STL 14:00
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
      Find more flights
      Find more flights
    • YUL 16:55
      2h 46m
      Direct
      STL 18:41
      Montreal - St. Louis | Tue, Nov 3 | Air Canada
      CAD 782 CAD 1,064
      27% off
      27% off
      CAD 1,064 CAD 782
    • YUL 16:55
      2h 46m
      Direct
      STL 18:41
      Montreal - St. Louis | Tue, Nov 3 | United Airlines
      CAD 840 CAD 1,064
      21% off
      21% off
      CAD 1,064 CAD 840
    • YUL 16:50
      4h 39m
      1 stop
      STL 20:29
      Montreal - St. Louis | Tue, Nov 17 | Delta Air Lines
      CAD 497 CAD 1,761
      72% off
      72% off
      CAD 1,761 CAD 497
    • YUL 16:50
      4h 39m
      1 stop
      STL 20:29
      Montreal - St. Louis | Sun, Nov 29 | WestJet
      CAD 1,391
      21% off
      CAD 1,761 CAD 1,391
    • YUL 12:50
      4h 45m
      1 stop
      STL 16:35
      Montreal - St. Louis | Thu, Nov 26 | WestJet
      CAD 674
      62% off
      CAD 1,761 CAD 674
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Thu, Nov 12 | Air Canada
      CAD 484
      73% off
      CAD 1,761 CAD 484
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Mon, Dec 7 | Air Canada
      CAD 493
      72% off
      CAD 1,761 CAD 493
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Fri, Dec 4 | Air Canada
      CAD 494
      72% off
      CAD 1,761 CAD 494
    • YUL 11:10
      5h 16m
      1 stop
      STL 15:26
      Montreal - St. Louis | Sun, Dec 13 | Air Canada
      CAD 494
      72% off
      CAD 1,761 CAD 494
    • YMQ 13:00
      17h 25m
      1 stop
      STL 14:00
      Montreal - St. Louis | Wed, Nov 4 | Normal Airline
      Find more flights
      Find more flights

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 Montréal-Pierre Elliott Trudeau International Airport to St. Louis Lambert International Airport?

The cheapest airline flying from Montréal-Pierre Elliott Trudeau International Airport to St. Louis Lambert International Airport is Air Canada (from CAD 309) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Air Canada
From CAD 309
American Airlines
From CAD 320
United Airlines
From CAD 407
Delta Air Lines
From CAD 415
Porter Airlines
From CAD 454
WestJet
From CAD 521

Find more flights and airlines

What is the flight schedule from Montréal-Pierre Elliott Trudeau International 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

    Montréal-Pierre Elliott Trudeau International Airport

    18:10

    YUL

    2h 42m

    Direct

    19:52

    ORD

    S M T W T F S
    Search

  2. AA3292

    O'Hare International Airport

    22:39

    ORD

    1h 16m

    Direct

    23:55

    STL

    S M T W T F S

  3. AC8477

    Montréal-Pierre Elliott Trudeau International Airport

    09:35

    YUL

    2h 37m

    Direct

    11:12

    ORD

    S M T W T F S
    Search

  4. AA772

    O'Hare International Airport

    18:03

    ORD

    1h 19m

    Direct

    19:22

    STL

    S M T W T F S

  5. AA3602

    Montréal-Pierre Elliott Trudeau International Airport

    12:10

    YUL

    3h 5m

    Direct

    14:15

    ORD

    S M T W T F S
    Search

  6. AA3768

    O'Hare International Airport

    20:50

    ORD

    1h 24m

    Direct

    22:14

    STL

    S M T W T F S

  7. AC8481

    Montréal-Pierre Elliott Trudeau International Airport

    18:10

    YUL

    2h 42m

    Direct

    19:52

    ORD

    S M T W T F S
    Search

  8. AA3292

    O'Hare International Airport

    22:39

    ORD

    1h 16m

    Direct

    23:55

    STL

    S M T W T F S

  9. AA3602

    Montréal-Pierre Elliott Trudeau International Airport

    12:10

    YUL

    3h 5m

    Direct

    14:15

    ORD

    S M T W T F S
    Search

  10. AA3292

    O'Hare International Airport

    22:39

    ORD

    1h 16m

    Direct

    23:55

    STL

    S M T W T F S

  11. AC736

    Montréal-Pierre Elliott Trudeau International Airport

    20:00

    YUL

    1h 32m

    Direct

    21:32

    LGA

    S M T W - F S
    Search

  12. F93287

    LaGuardia Airport

    09:25

    LGA

    2h 38m

    Direct

    12:03

    ATL

    S M T W T F S

  13. F94473

    Hartsfield–Jackson Atlanta International Airport

    16:47

    ATL

    1h 53m

    Direct

    17:40

    STL

    S - T - T - -

  14. AC8481

    Montréal-Pierre Elliott Trudeau International Airport

    18:10

    YUL

    2h 42m

    Direct

    19:52

    ORD

    S M T W T F S
    Search

  15. AA3484

    O'Hare International Airport

    15:20

    ORD

    1h 23m

    Direct

    16:43

    STL

    S M T W T F S

  16. AC8483

    Montréal-Pierre Elliott Trudeau International Airport

    18:10

    YUL

    2h 42m

    Direct

    19:52

    ORD

    S M T W T F S
    Search

  17. AA6487

    O'Hare International Airport

    15:18

    ORD

    1h 28m

    Direct

    16:46

    STL

    - - - - - F -

  18. AC8483

    Montréal-Pierre Elliott Trudeau International Airport

    18:10

    YUL

    2h 42m

    Direct

    19:52

    ORD

    S M T W T F S
    Search

  19. AA772

    O'Hare International Airport

    18:03

    ORD

    1h 19m

    Direct

    19:22

    STL

    S M T W T F S
Find more flights and airlines

About Montréal-Pierre Elliott Trudeau International Airport and St. Louis Lambert International Airport

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

Flight distance 1,558.52km
Cheapest one-way ticket price CAD 320
Cheapest return ticket price CAD 754

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

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

    Montréal-Pierre Elliott Trudeau International 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 Montréal-Pierre Elliott Trudeau International Airport (YUL) to St. Louis Lambert International Airport (STL).
  • The earliest flight from Montréal-Pierre Elliott Trudeau International 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 Montréal-Pierre Elliott Trudeau International Airport (YUL) to St. Louis Lambert International Airport (STL) is quite popular. Without considering departure times or holidays, tickets cost around CAD 1,077 in October, the most expensive month to book this route.
    • The distance from St. Louis Lambert International Airport to downtown is about 20km, by taxi about 40 minutes.
  • Air Canada is a very popular airline operating an average of 6 flights per month.
  • One-way flights from Montréal-Pierre Elliott Trudeau International Airport to St. Louis Lambert International Airport currently start from CAD 320, and round-trip fares start from CAD 754. The current lowest fare is a American Airlines flight departing on Sun, Nov 29; prices may vary depending on availability.
  • Yes. Air Canada operate direct flights from Montréal-Pierre Elliott Trudeau International 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 Montréal-Pierre Elliott Trudeau International Airport to St. Louis Lambert International Airport is CAD 577. Prices may vary depending on the departure date, airline, and availability.
  • Montréal-Pierre Elliott Trudeau International 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 Montréal-Pierre Elliott Trudeau International 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.

Find Cheap Flights with Trip.com

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

Book with no extra fees

Prices displayed on 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, Wi-Fi, 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 the 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.