$159+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYC
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Calgary with Cheapflights
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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
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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 June 11, 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 June 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/188:08 pm
STL
- YYC
1 stop19h 37m
Multiple Airlines
Tue 8/258:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 10/148:10 pm
STL
- YYC
1 stop19h 35m
Multiple Airlines
Tue 10/2712:30 am
YYC
- STL
1 stop8h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 8/124:57 pm
STL
- YYC
1 stop19h 03m
Multiple Airlines
Thu 8/208:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 10/148:10 pm
STL
- YYC
1 stop19h 35m
Multiple Airlines
Fri 10/308:55 am
YYC
- STL
1 stop23h 45m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 10/1310:35 am
STL
- YYC
1 stop25h 25m
Multiple Airlines
Mon 10/2612:30 am
YYC
- STL
1 stop8h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 8/258:08 pm
STL
- YYC
1 stop19h 37m
Multiple Airlines
Wed 9/28:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$410
This American Airlines deal was found by Cheapflights users on 6/5. 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 8/186:00 am
STL
- YYC
1 stop18h 42m
American Airlines
Tue 8/251:52 pm
YYC
- STL
1 stop17h 31m
American Airlines
Deal found 6/5![American Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 10/1510:35 am
STL
- YYC
1 stop25h 25m
Multiple Airlines
Mon 10/2612:30 am
YYC
- STL
1 stop8h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 8/14:57 pm
STL
- YYC
1 stop19h 03m
Multiple Airlines
Thu 8/68:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 8/236:33 pm
STL
- YYC
2 stops21h 42m
Multiple Airlines
Sat 8/298:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/248:08 pm
STL
- YYC
1 stop19h 37m
Multiple Airlines
Wed 8/268:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$418
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 June 11, 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 June 11, 2026.
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 9/115:30 pm
STL
- YYC
1 stop6h 06m
United Airlines
Tue 9/158:30 am
YYC
- STL
1 stop6h 08m
United Airlines
Deal found 6/9![United Airlines logo]()
$436
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/34:57 pm
STL
- YYC
2 stops23h 18m
Multiple Airlines
Fri 8/148:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$492
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:19 pm
STL
- YYC
1 stop8h 27m
Alaska Airlines
Wed 9/166:33 am
YYC
- STL
2 stops9h 37m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 6/9. 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 9/124:40 pm
STL
- YYC
1 stop6h 08m
United Airlines
Tue 9/159:30 am
YYC
- STL
1 stop6h 04m
United Airlines
Deal found 6/9![United Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Mon 10/268:15 pm
STL
- YYC
1 stop16h 39m
United Airlines
Wed 10/286:20 am
YYC
- STL
1 stop13h 39m
United Airlines
Deal found 6/9![United Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Fri 8/287:25 am
STL
- YYC
1 stop16h 11m
United Airlines
Fri 9/49:30 am
YYC
- STL
1 stop6h 04m
United Airlines
Deal found 6/9![United Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 6/6. 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 9/151:36 pm
STL
- YYC
1 stop9h 12m
United Airlines
Wed 9/236:00 am
YYC
- STL
1 stop9h 34m
United Airlines
Deal found 6/6![United Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 9/91:36 pm
STL
- YYC
1 stop5h 54m
United Airlines
Wed 9/166:00 am
YYC
- STL
1 stop5h 40m
United Airlines
Deal found 6/7![United Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Mon 7/134:48 pm
STL
- YYC
1 stop6h 00m
United Airlines
Tue 7/218:30 am
YYC
- STL
1 stop6h 16m
United Airlines
Deal found 6/7![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 6/6. 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 8/295:30 pm
STL
- YYC
1 stop6h 06m
United Airlines
Fri 9/49:30 am
YYC
- STL
1 stop6h 04m
United Airlines
Deal found 6/6![United Airlines logo]()
$537
Last-minute flights from St. Louis to CalgaryDiscover last-minute flight deals from St. Louis to Calgary. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Calgary. Data last updated June 11, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 6/259:09 am
STL
- YYC
1 stop15h 33m
American Airlines
Sun 6/281:41 pm
YYC
- STL
1 stop9h 35m
American Airlines
Deal found 6/9![American Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/126:34 pm
STL
- YYC
1 stop28h 16m
Multiple Airlines
Wed 7/2212:20 am
YYC
- STL
1 stop16h 17m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/134:57 pm
STL
- YYC
1 stop29h 53m
Multiple Airlines
Wed 7/2212:20 am
YYC
- STL
1 stop16h 17m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/147:03 pm
STL
- YYC
2 stops42h 07m
Multiple Airlines
Wed 7/2212:20 am
YYC
- STL
1 stop16h 17m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/147:03 pm
STL
- YYC
2 stops42h 07m
Multiple Airlines
Wed 7/228:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/184:57 pm
STL
- YYC
2 stops23h 18m
Multiple Airlines
Sun 8/27:45 pm
YYC
- STL
1 stop21h 30m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$470
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 7/306:34 pm
STL
- YYC
1 stop17h 26m
Multiple Airlines
Mon 8/38:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/306:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Thu 8/68:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/314:57 pm
STL
- YYC
2 stops22h 48m
Multiple Airlines
Thu 8/68:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$458
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 June 11, 2026.
Search for one-way flight options from St. Louis to Calgary. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Air Canada deal was found by Cheapflights users on 6/9. 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.
Sun 8/912:10 pm
STL
- YYC
1 stop10h 03m
Air Canada
Deal found 6/9![Air Canada logo]()
$159
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/168:00 am
STL
- YYC
1 stop15h 36m
United Airlines
Deal found 6/10![United Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Mon 8/244:40 pm
STL
- YYC
1 stop6h 08m
United Airlines
Deal found 6/9![United Airlines logo]()
$200
This Air Canada deal was found by Cheapflights users on 6/10. 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 8/2412:10 pm
STL
- YYC
2 stops14h 41m
Air Canada
Deal found 6/10![Air Canada logo]()
$212
This American Airlines deal was found by Cheapflights users on 6/8. 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 9/161:49 pm
STL
- YYC
1 stop10h 40m
American Airlines
Deal found 6/8![American Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 6/6. 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.
Wed 9/162:27 pm
STL
- YYC
1 stop9h 34m
Delta
Deal found 6/6![Delta logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/96:34 pm
STL
- YYC
2 stops31h 10m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$220
This Air Canada deal was found by Cheapflights users on 6/10. 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.
Wed 7/88:55 am
STL
- YYC
1 stop17h 26m
Air Canada
Deal found 6/10![Air Canada logo]()
$228
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 7/302:30 pm
STL
- YYC
1 stop9h 28m
Delta
Deal found 6/10![Delta logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 8/34:57 pm
STL
- YYC
2 stops23h 18m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$236
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $400 (Kiwi.com) |
One-way from | $159 (Air Canada) |
Popular in | December |
Cheapest in | November |
Average price | $680 |
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 June 11, 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
Fri 9/11
5:30 pm-10:36 pm
1 stop6h 06m
Calgary
Tue 9/15
8:30 am-3:38 pm
1 stop6h 08m
$436
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 9/12
4:40 pm-9:48 pm
1 stop6h 08m
Calgary
Tue 9/15
9:30 am-4:34 pm
1 stop6h 04m
$436
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 10/26
8:15 pm-11:54 am
1 stop16h 39m
Calgary
Wed 10/28
6:20 am-8:59 pm
1 stop13h 39m
$436
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Fri 8/28
7:25 am-10:36 pm
1 stop16h 11m
Calgary
Fri 9/4
9:30 am-4:34 pm
1 stop6h 04m
$445
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 8/3
4:57 pm-3:15 pm
2 stops23h 18m
Calgary
Fri 8/14
8:45 am-7:23 pm
1 stop9h 38m
$492
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Tue 9/15
1:36 pm-9:48 pm
1 stop9h 12m
Calgary
Wed 9/23
6:00 am-4:34 pm
1 stop9h 34m
$494
Quickest round-trip
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Wed 9/9
1:36 pm-6:30 pm
1 stop5h 54m
Calgary
Wed 9/16
6:00 am-12:40 pm
1 stop5h 40m
$494
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 7/13
4:48 pm-9:48 pm
1 stop6h 00m
Calgary
Tue 7/21
8:30 am-3:46 pm
1 stop6h 16m
$516
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Wed 9/9
3:19 pm-10:46 pm
1 stop8h 27m
Calgary
Wed 9/16
6:33 am-5:10 pm
2 stops9h 37m
$536
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 8/29
5:30 pm-10:36 pm
1 stop6h 06m
Calgary
Fri 9/4
9:30 am-4:34 pm
1 stop6h 04m
$537
Showing 1-10 of 17 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 June.
| 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
Prices
Airlines
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, November is the cheapest month in which you can book a flight from St. Louis to Calgary (average of $500). Flying from St. Louis to Calgary in December is currently the most expensive (average of $729). 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 June 11, 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.
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
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
Explore flights to Calgary departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.
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St. Louis and Calgary flights
Browse other St. Louis and Calgary flight options. Last updated on June 11, 2026.
Other flights from St. Louis
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$200 | Average$704 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$267 | Average$632 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$346 | Average$655 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$471 | Average$661 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$505 | Average$723 | FlexibilityNo cancel fee | On-time60% |