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St. Louis Lambert International Airport to Calgary International Airport flight

Explore the cheapest one-way and round-trip flights from St. Louis Lambert International Airport to Calgary International Airport over the next 90 days, with one-way fares from AU$260 and round-trip from AU$603. Based on Trip.com's latest 7-day flight data.

      • STL 14:25
        9h 41m
        1 stop
        YYC 23:06
        St. Louis - Calgary | Thu, Sep 24 | Delta Air Lines
        YYC 13:51
        9h 36m
        1 stop
        STL 00:27
        Calgary - St. Louis | Sun, Sep 27 | American Airlines
        AU$603 AU$1,350
        55% off
        55% off
        AU$1,350 AU$603
      • STL 12:46
        9h 56m
        1 stop
        YYC 21:42
        St. Louis - Calgary | Thu, Sep 24 | American Airlines
        YYC 07:00
        16h 27m
        1 stop
        STL 00:27
        Calgary - St. Louis | Sun, Sep 27 | American Airlines
        AU$644 AU$1,350
        52% off
        52% off
        AU$1,350 AU$644
      • STL 10:05
        8h 5m
        1 stop
        YYC 17:10
        St. Louis - Calgary | Thu, Sep 24 | WestJet
        YYC 13:51
        9h 36m
        1 stop
        STL 00:27
        Calgary - St. Louis | Sun, Sep 27 | American Airlines
        AU$665 AU$1,350
        51% off
        51% off
        AU$1,350 AU$665
      • STL 15:19
        8h 27m
        1 stop
        YYC 22:46
        St. Louis - Calgary | Thu, Sep 24 | Alaska Airlines
        YYC 07:00
        16h 27m
        1 stop
        STL 00:27
        Calgary - St. Louis | Sun, Sep 27 | American Airlines
        AU$737
        45% off
        AU$1,350 AU$737
      • STL 05:10
        9h 43m
        1 stop
        YYC 13:53
        St. Louis - Calgary | Thu, Sep 24 | United Airlines
        YYC 06:45
        6h 59m
        1 stop
        STL 14:44
        Calgary - St. Louis | Sun, Sep 27 | American Airlines
        AU$738
        45% off
        AU$1,350 AU$738
      • STL 08:55
        17h 22m
        1 stop
        YYC 01:17
        St. Louis - Calgary | Thu, Sep 24 | Air Canada
        YYC 00:55
        12h 5m
        1 stop
        STL 14:00
        Calgary - St. Louis | Sun, Sep 27 | Air Canada
        AU$838
        38% off
        AU$1,350 AU$838
      • STL 15:52
        5h 51m
        1 stop
        YYC 20:43
        St. Louis - Calgary | Mon, Oct 5 | Delta Air Lines
        YYC 07:00
        15h 54m
        1 stop
        STL 23:54
        Calgary - St. Louis | Mon, Oct 12 | WestJet
        AU$840
        38% off
        AU$1,350 AU$840
      • STL 12:10
        10h 17m
        1 stop
        YYC 21:27
        St. Louis - Calgary | Mon, Oct 5 | Air Canada
        YYC 07:00
        25h 9m
        1 stop
        STL 09:09
        Calgary - St. Louis | Mon, Oct 12 | WestJet
        AU$840
        38% off
        AU$1,350 AU$840
      • STL 16:39
        6h 9m
        1 stop
        YYC 21:48
        St. Louis - Calgary | Mon, Oct 5 | United Airlines
        YYC 07:00
        25h 9m
        1 stop
        STL 09:09
        Calgary - St. Louis | Mon, Oct 12 | WestJet
        AU$841
        38% off
        AU$1,350 AU$841
      • STL 05:40
        7h 19m
        1 stop
        YYC 11:59
        St. Louis - Calgary | Mon, Oct 5 | American Airlines
        YYC 07:00
        15h 54m
        1 stop
        STL 23:54
        Calgary - St. Louis | Mon, Oct 12 | WestJet
        AU$868
        36% off
        AU$1,350 AU$868
      • STL 07:21
        6h 35m
        1 stop
        YYC 12:56
        St. Louis - Calgary | Fri, Oct 2 | American Airlines
        YYC 06:35
        9h 12m
        1 stop
        STL 16:47
        Calgary - St. Louis | Sun, Oct 4 | Delta Air Lines
        AU$1,012
        25% off
        AU$1,350 AU$1,012
      • STL 06:15
        7h 45m
        1 stop
        YYC 13:00
        St. Louis - Calgary | Fri, Oct 2 | Delta Air Lines
        YYC 06:35
        9h 12m
        1 stop
        STL 16:47
        Calgary - St. Louis | Sun, Oct 4 | Delta Air Lines
        AU$1,053
        22% off
        AU$1,350 AU$1,053
      • STL 13:00
        17h 25m
        1 stop
        YYC 14:00
        St. Louis - Calgary | Wed, Sep 23 | Normal Airline
        YYC 15:00
        6h
        Direct
        STL 16:00
        Calgary - St. Louis | Fri, Sep 25 | Normal Airline
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      • Cheapest nonstop
        STL 09:00
        5h 53m
        Direct
        YYC 13:53
        St. Louis - Calgary | Wed, Sep 23 | United Airlines
        AU$404 AU$704
        43% off
        43% off
        AU$704 AU$404
      • STL 09:00
        5h 53m
        Direct
        YYC 13:53
        St. Louis - Calgary | Thu, Oct 15 | United Airlines
        AU$463 AU$704
        34% off
        34% off
        AU$704 AU$463
      • STL 07:27
        17h 2m
        1 stop
        YYC 23:29
        St. Louis - Calgary | Tue, Sep 22 | American Airlines
        AU$260 AU$704
        63% off
        63% off
        AU$704 AU$260
      • STL 06:47
        14h 28m
        1 stop
        YYC 20:15
        St. Louis - Calgary | Mon, Oct 12 | WestJet
        AU$281
        60% off
        AU$704 AU$281
      • STL 06:40
        14h 35m
        1 stop
        YYC 20:15
        St. Louis - Calgary | Sun, Oct 4 | WestJet
        AU$283
        60% off
        AU$704 AU$283
      • STL 06:00
        12h 10m
        1 stop
        YYC 17:10
        St. Louis - Calgary | Wed, Oct 14 | WestJet
        AU$291
        59% off
        AU$704 AU$291
      • STL 10:05
        8h 5m
        1 stop
        YYC 17:10
        St. Louis - Calgary | Tue, Sep 22 | WestJet
        AU$292
        59% off
        AU$704 AU$292
      • STL 06:00
        13h 55m
        1 stop
        YYC 18:55
        St. Louis - Calgary | Sat, Oct 31 | WestJet
        AU$307
        56% off
        AU$704 AU$307
      • STL 06:00
        6h 28m
        1 stop
        YYC 11:28
        St. Louis - Calgary | Wed, Sep 30 | United Airlines
        AU$310
        56% off
        AU$704 AU$310
      • STL 13:36
        5h 54m
        1 stop
        YYC 18:30
        St. Louis - Calgary | Tue, Sep 22 | United Airlines
        AU$321
        54% off
        AU$704 AU$321
      • STL 05:10
        9h 43m
        1 stop
        YYC 13:53
        St. Louis - Calgary | Wed, Oct 14 | United Airlines
        AU$322
        54% off
        AU$704 AU$322
      • STL 05:43
        7h 11m
        1 stop
        YYC 11:54
        St. Louis - Calgary | Wed, Sep 30 | American Airlines
        AU$322
        54% off
        AU$704 AU$322
      • STL 06:00
        12h 10m
        1 stop
        YYC 17:10
        St. Louis - Calgary | Sat, Sep 26 | WestJet
        AU$549
        22% off
        AU$704 AU$549
      • STL 13:36
        9h 12m
        1 stop
        YYC 21:48
        St. Louis - Calgary | Sat, Sep 26 | United Airlines
        AU$549
        22% off
        AU$704 AU$549
      • STL 13:00
        17h 25m
        1 stop
        YYC 14:00
        St. Louis - Calgary | Wed, Sep 23 | Normal Airline
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Flight fares from St. Louis Lambert International Airport to Calgary International Airport are based on average airline prices for the next 3 months, according to Trip.com’s latest data.

Which airline offers the cheapest flights from St. Louis Lambert International Airport to Calgary International Airport?

The cheapest airline flying from St. Louis Lambert International Airport to Calgary International Airport is American Airlines (from AU$260) among 7 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From AU$260
WestJet
From AU$281
United Airlines
From AU$310
Frontier Airlines
From AU$332
Air Canada
From AU$343
Delta Air Lines
From AU$369
Alaska Airlines
From AU$547

Find more flights and airlines

What is the flight schedule from St. Louis Lambert International Airport to Calgary International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA1380

    St. Louis Lambert International Airport

    13:30

    STL

    2h 30m

    Direct

    15:00

    DEN

    S M T W T F S
    Search

  2. UA1871

    Denver International Airport

    16:00

    DEN

    2h 30m

    Direct

    18:30

    YYC

    S M - - - - S

  3. AA1997

    St. Louis Lambert International Airport

    07:28

    STL

    1h 31m

    Direct

    08:59

    ORD

    S M T W T F S
    Search

  4. AA2389

    O'Hare International Airport

    09:56

    ORD

    4h

    Direct

    12:56

    YYC

    S M T W T F S

  5. UA4423

    St. Louis Lambert International Airport

    06:00

    STL

    1h 33m

    Direct

    07:33

    ORD

    S - T W T F S
    Search

  6. UA764

    O'Hare International Airport

    08:43

    ORD

    3h 48m

    Direct

    11:31

    YYC

    S M T W T F S

  7. AA4645

    St. Louis Lambert International Airport

    17:10

    STL

    1h 55m

    Direct

    19:05

    ORD

    S M T W T F S
    Search

  8. AA1632

    O'Hare International Airport

    20:30

    ORD

    3h 59m

    Direct

    23:29

    YYC

    S M T W T F S

  9. AA2261

    St. Louis Lambert International Airport

    05:43

    STL

    1h 57m

    Direct

    07:40

    DFW

    S M T W T F S
    Search

  10. AA1973

    Dallas Fort Worth International Airport

    09:03

    DFW

    3h 51m

    Direct

    11:54

    YYC

    S M T W T F S

  11. DL1597

    St. Louis Lambert International Airport

    06:30

    STL

    1h 36m

    Direct

    08:06

    MSP

    S M T W T F S
    Search

  12. DL2487

    Minneapolis-Saint Paul International Airport

    11:08

    MSP

    2h 52m

    Direct

    13:00

    YYC

    S M T W T F S

  13. WS8834

    St. Louis Lambert International Airport

    10:05

    STL

    1h 34m

    Direct

    12:39

    ATL

    S M T W T - S
    Search

  14. WS1591

    Hartsfield–Jackson Atlanta International Airport

    14:25

    ATL

    4h 45m

    Direct

    17:10

    YYC

    S M T W T F S

  15. AS388

    St. Louis Lambert International Airport

    15:19

    STL

    4h 22m

    Direct

    17:41

    SEA

    S M T W T F S
    Search

  16. AS2201

    Seattle-Tacoma International Airport

    20:10

    SEA

    1h 36m

    Direct

    22:46

    YYC

    S M T W T F S

  17. AA1926

    St. Louis Lambert International Airport

    05:57

    STL

    1h 33m

    Direct

    07:30

    ORD

    S M T W T F S
    Search

  18. AA2389

    O'Hare International Airport

    09:56

    ORD

    4h

    Direct

    12:56

    YYC

    S M T W T F S

  19. UA1380

    St. Louis Lambert International Airport

    13:30

    STL

    2h 30m

    Direct

    15:00

    DEN

    S M T W T F S
    Search

  20. UA720

    Denver International Airport

    19:05

    DEN

    2h 33m

    Direct

    21:38

    YYC

    S M T W T F S
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About St. Louis Lambert International Airport and Calgary International Airport

Learn about St. Louis Lambert International Airport (STL) and Calgary International Airport (YYC) — including location, terminals, transportation, and travel tips.

Flight distance2,301.08km
Cheapest one-way ticket priceAU$260
Cheapest return ticket priceAU$603

FAQs for St. Louis Lambert International Airport to Calgary International Airport Flights

  • How many daily flights are there from St. Louis Lambert International Airport (STL) to Calgary International Airport (YYC)?

    There are around 1 daily flights from St. Louis Lambert International Airport (STL) to Calgary International Airport (YYC).
  • The earliest flight from St. Louis Lambert International Airport to Calgary International Airport departs at 09:00, and the last departs at 09:00, 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 St. Louis Lambert International Airport (STL) to Calgary International Airport (YYC) is quite popular. Without considering departure times or holidays, tickets cost around AU$505 in September, the most expensive month to book this route.
    • The distance from Calgary International Airport to downtown is about 9km, by taxi about 20 minutes.
  • United Airlines is a very popular airline operating an average of 2 flights per month.
  • One-way flights from St. Louis Lambert International Airport to Calgary International Airport currently start from AU$260, and round-trip fares start from AU$603. The current lowest fare is a American Airlines flight departing on Tue, Sep 22; prices may vary depending on availability.
  • Yes. United Airlines operate direct flights from St. Louis Lambert International Airport to Calgary International Airport, with an average flight time of 5 hours 30 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 St. Louis Lambert International Airport to Calgary International Airport is AU$441. Prices may vary depending on the departure date, airline, and availability.
  • St. Louis Lambert International Airport to Calgary International Airport operates around 5 weekly flights, mainly by United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter St. Louis Lambert International Airport and Calgary 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.