$151+ Cheap flights from St. Louis (STL) to Calgary (YYC)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYC
Jul 31 — Aug 71
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Calgary with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Calgary
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Best
Last-minute
One-way
Cheapest flights from St. Louis to CalgaryExplore the most affordable flight options available from St. Louis to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
Explore the most affordable flight options available from St. Louis to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:35 am
STL
- YYC
2 stops29h 40m
Multiple Airlines
Tue 10/612:20 am
YYC
- STL
1 stop8h 20m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:57 pm
STL
- YYC
1 stop19h 03m
Multiple Airlines
Thu 8/209:00 pm
YYC
- STL
2 stops19h 22m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:57 pm
STL
- YYC
1 stop19h 03m
Multiple Airlines
Sat 8/2212:20 am
YYC
- STL
1 stop16h 02m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Sat 8/2212:20 am
YYC
- STL
1 stop16h 02m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Fri 7/247:00 am
YYC
- STL
1 stop24h 57m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:34 pm
STL
- YYC
2 stops22h 36m
Multiple Airlines
Fri 8/77:00 am
YYC
- STL
1 stop24h 57m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:35 am
STL
- YYC
2 stops29h 40m
Multiple Airlines
Mon 9/1412:20 am
YYC
- STL
1 stop8h 20m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:34 pm
STL
- YYC
1 stop23h 36m
Multiple Airlines
Sat 8/2212:20 am
YYC
- STL
1 stop16h 02m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:57 pm
STL
- YYC
1 stop19h 03m
Multiple Airlines
Mon 8/247:00 am
YYC
- STL
1 stop9h 22m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$399
Best flights from St. Louis to CalgaryDiscover carefully curated flight deals from St. Louis to Calgary that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
Discover carefully curated flight deals from St. Louis to Calgary that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Fri 8/77:00 am
YYC
- STL
1 stop24h 57m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:00 am
STL
- YYC
1 stop19h 29m
American Airlines
Sat 9/197:00 am
YYC
- STL
1 stop16h 27m
American Airlines
Deal found 6/26![American Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:58 am
STL
- YYC
1 stop5h 58m
United Airlines
Thu 11/1212:37 pm
YYC
- STL
1 stop9h 32m
United Airlines
Deal found 6/29![United Airlines logo]()
$441
This Air Canada deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:10 pm
STL
- YYC
1 stop10h 17m
Air Canada
Wed 10/219:20 am
YYC
- STL
2 stops9h 40m
Air Canada
Deal found 6/30![Air Canada logo]()
$448
This FlightHub deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:10 pm
STL
- YYC
1 stop7h 05m
WestJet
Wed 8/1212:20 am
YYC
- STL
1 stop22h 38m
WestJet
Deal found 6/26![WestJet logo]()
$462
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:00 am
STL
- YYC
2 stops12h 54m
Delta
Thu 11/122:50 pm
YYC
- STL
1 stop7h 28m
Delta
Deal found 6/26![Delta logo]()
$477
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:30 pm
STL
- YYC
1 stop6h 06m
United Airlines
Sun 9/136:00 am
YYC
- STL
1 stop5h 40m
United Airlines
Deal found 6/29![United Airlines logo]()
$446
This FlightHub deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:20 am
STL
- YYC
2 stops14h 20m
WestJet
Fri 9/47:00 am
YYC
- STL
2 stops26h 23m
WestJet
Deal found 6/26![WestJet logo]()
$468
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:45 pm
STL
- YYC
1 stop6h 03m
United Airlines
Fri 8/147:45 am
YYC
- STL
1 stop7h 49m
United Airlines
Deal found 6/29![United Airlines logo]()
$465
Last-minute flights from St. Louis to CalgaryDiscover last-minute flight deals from St. Louis to Calgary. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Calgary. Data last updated July 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Fri 7/247:00 am
YYC
- STL
1 stop24h 57m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Mon 7/2711:15 am
YYC
- STL
2 stops11h 38m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Wed 8/512:20 am
YYC
- STL
1 stop16h 17m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Wed 8/58:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Thu 8/612:20 am
YYC
- STL
1 stop14h 57m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:57 pm
STL
- YYC
1 stop19h 03m
Multiple Airlines
Wed 8/58:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:57 pm
STL
- YYC
1 stop19h 03m
Multiple Airlines
Thu 8/612:20 am
YYC
- STL
1 stop14h 57m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Wed 8/58:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:55 am
STL
- YYC
1 stop17h 54m
American Airlines
Tue 8/47:00 am
YYC
- STL
1 stop16h 16m
American Airlines
Deal found 6/28![American Airlines logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Thu 8/612:20 am
YYC
- STL
1 stop14h 57m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$442
One-way flights from St. Louis to CalgarySearch for one-way flight options from St. Louis to Calgary. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
Search for one-way flight options from St. Louis to Calgary. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:17 pm
STL
- YYC
1 stop17h 43m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$151
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:21 am
STL
- YYC
1 stop17h 08m
American Airlines
Deal found 6/28![American Airlines logo]()
$179
This oojo deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:15 am
STL
- YYC
2 stops10h 55m
WestJet
Deal found 6/30![WestJet logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$183
This American Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:41 pm
STL
- YYC
1 stop17h 17m
American Airlines
Deal found 6/27![American Airlines logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$188
This oojo deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:13 am
STL
- YYC
2 stops9h 27m
WestJet
Deal found 7/1![WestJet logo]()
$189
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
STL
- YYC
1 stop18h 42m
American Airlines
Deal found 6/28![American Airlines logo]()
$191
This Air Canada deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/254:05 pm
STL
- YYC
1 stop8h 19m
Air Canada
Deal found 6/27![Air Canada logo]()
$199
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:00 am
STL
- YYC
1 stop18h 42m
American Airlines
Deal found 6/30![American Airlines logo]()
$201
Find flight deals from St. Louis to Calgary
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Calgary (YYC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $365 (Kiwi.com) |
One-way from | $151 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $727 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Calgary that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
Use the filters below to find and compare flights from St. Louis to Calgary that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sun 8/2
6:34 pm-11:00 am
1 stop17h 26m
Calgary
Fri 8/7
7:00 am-8:57 am
1 stop24h 57m
$399
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 9/12
5:00 am-11:29 pm
1 stop19h 29m
Calgary
Sat 9/19
7:00 am-12:27 am
1 stop16h 27m
$413
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 11/7
8:58 am-1:56 pm
1 stop5h 58m
Calgary
Thu 11/12
12:37 pm-11:09 pm
1 stop9h 32m
$441
Quickest round-trip
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Tue 9/8
5:30 pm-10:36 pm
1 stop6h 06m
Calgary
Sun 9/13
6:00 am-12:40 pm
1 stop5h 40m
$446
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 10/19
12:10 pm-9:27 pm
1 stop10h 17m
Calgary
Wed 10/21
9:20 am-8:00 pm
2 stops9h 40m
$448
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Thu 8/6
2:10 pm-8:15 pm
1 stop7h 05m
Calgary
Wed 8/12
12:20 am-11:58 pm
1 stop22h 38m
$462
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 8/8
4:45 pm-9:48 pm
1 stop6h 03m
Calgary
Fri 8/14
7:45 am-4:34 pm
1 stop7h 49m
$465
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 8/29
6:20 am-7:40 pm
2 stops14h 20m
Calgary
Fri 9/4
7:00 am-10:23 am
2 stops26h 23m
$468
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 11/7
9:00 am-8:54 pm
2 stops12h 54m
Calgary
Thu 11/12
2:50 pm-11:18 pm
1 stop7h 28m
$477
Cheapest one-way
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Wed 9/16
6:15 am-4:10 pm
2 stops10h 55m
$181
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Calgary
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Calgary in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Calgary flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Calgary flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Calgary flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Calgary flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Calgary flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Calgary
Have a flexible travel schedule? Discover the best time to fly to Calgary from St. Louis with our price prediction graph.
STL-YYC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Calgary
How far ahead should I book a flight from St. Louis to Calgary?
The price you pay for your flight from St. Louis to Calgary may vary depending on when you book. For the best chance of a lower fare, look to book 27 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from St. Louis to Calgary?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Calgary (average of $559). Flying from St. Louis to Calgary in December is currently the most expensive (average of $761). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from St. Louis to Calgary?
Reviews of airlines servicing Calgary
Get insights into the airlines that provide service to Calgary. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Calgary. Reviews last updated July 1, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from St. Louis to Calgary by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Crew
8.5
Comfort
7.8
Entertainment
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Calgary. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Calgary?
Book flights to Calgary if you plan to visit one of these locationsCanmore
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Other flights to Calgary
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St. Louis and Calgary flights
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Other flights from St. Louis
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Top 5 airlines flying from St. Louis to Calgary
Discover the top 5 airlines that operate flights from St. Louis to Calgary. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$200 | Average$709 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$267 | Average$632 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$427 | Average$709 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$504 | Average$668 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$519 | Average$708 | FlexibilityNo cancel fee | On-time60% |