$176+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYC
Jun 14 — Jun 211
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 May 15, 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 May 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/11. 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
1 stop17h 27m
Multiple Airlines
Mon 8/3112:30 am
YYC
- STL
1 stop16h 00m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 8/245:33 pm
STL
- YYC
1 stop18h 27m
Multiple Airlines
Mon 8/3112:30 am
YYC
- STL
1 stop16h 00m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 7/204:52 pm
STL
- YYC
1 stop29h 58m
Multiple Airlines
Fri 7/247:00 am
YYC
- STL
1 stop24h 57m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/256:33 pm
STL
- YYC
1 stop23h 37m
Multiple Airlines
Wed 9/29:00 pm
YYC
- STL
2 stops19h 30m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$355
This American Airlines deal was found by Cheapflights users on 5/11. 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 6/107:03 am
STL
- YYC
1 stop17h 39m
American Airlines
Wed 6/171:41 pm
YYC
- STL
1 stop9h 35m
American Airlines
Deal found 5/11![American Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 5/13. 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 9/152:45 pm
STL
- YYC
1 stop9h 35m
American Airlines
Wed 9/236:30 am
YYC
- STL
1 stop12h 33m
American Airlines
Deal found 5/13![American Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 8/228:08 pm
STL
- YYC
2 stops16h 27m
Multiple Airlines
Fri 8/287:00 am
YYC
- STL
1 stop24h 52m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 9/2110:35 am
STL
- YYC
1 stop12h 15m
Multiple Airlines
Tue 9/2912:30 am
YYC
- STL
1 stop8h 10m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$421
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 May 15, 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 May 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/11. 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
1 stop17h 27m
Multiple Airlines
Mon 8/3112:30 am
YYC
- STL
1 stop16h 00m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 5/15. 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.
Fri 9/252:15 pm
STL
- YYC
1 stop9h 51m
Delta
Sat 10/36:35 am
YYC
- STL
1 stop9h 10m
Delta
Deal found 5/15![Delta logo]()
$467
This American Airlines deal was found by Cheapflights users on 5/15. 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 8/101:25 pm
STL
- YYC
1 stop11h 04m
American Airlines
Sat 8/157:00 am
YYC
- STL
1 stop15h 59m
American Airlines
Deal found 5/15![American Airlines logo]()
$483
This United Airlines deal was found by Cheapflights users on 5/11. 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 8/281:36 pm
STL
- YYC
1 stop5h 54m
United Airlines
Fri 9/48:30 am
YYC
- STL
1 stop6h 08m
United Airlines
Deal found 5/11![United Airlines logo]()
$500
This Delta deal was found by Cheapflights users on 5/12. 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.
Tue 9/152:15 pm
STL
- YYC
1 stop9h 51m
Delta
Wed 9/237:15 am
YYC
- STL
2 stops14h 46m
Delta
Deal found 5/12![Delta logo]()
$469
This United Airlines deal was found by Cheapflights users on 5/15. 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 8/294:40 pm
STL
- YYC
1 stop6h 08m
United Airlines
Fri 9/48:30 am
YYC
- STL
1 stop6h 08m
United Airlines
Deal found 5/15![United Airlines logo]()
$500
This Delta deal was found by Cheapflights users on 5/13. 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.
Mon 9/212:15 pm
STL
- YYC
1 stop9h 51m
Delta
Wed 9/307:15 am
YYC
- STL
2 stops14h 46m
Delta
Deal found 5/13![Delta logo]()
$469
Last-minute flights from St. Louis to CalgaryDiscover last-minute flight deals from St. Louis to Calgary. Data last updated May 15, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Calgary. Data last updated May 15, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 5/13. 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.
Sun 5/318:53 am
STL
- YYC
1 stop9h 07m
WestJet
Fri 6/1211:00 am
YYC
- STL
1 stop8h 39m
WestJet
Deal found 5/13![WestJet logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/55:27 pm
STL
- YYC
1 stop18h 33m
Multiple Airlines
Wed 6/106:00 pm
YYC
- STL
2 stops22h 30m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$446
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Fri 6/57:04 am
STL
- YYC
1 stop15h 39m
American Airlines
Wed 6/107:00 am
YYC
- STL
1 stop16h 16m
American Airlines
Deal found 5/12![American Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 5/11. 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 6/107:03 am
STL
- YYC
1 stop17h 39m
American Airlines
Wed 6/171:41 pm
YYC
- STL
1 stop9h 35m
American Airlines
Deal found 5/11![American Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/106:21 am
STL
- YYC
2 stops10h 49m
Multiple Airlines
Wed 6/178:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/166:31 pm
STL
- YYC
1 stop17h 29m
Multiple Airlines
Sun 6/2111:35 pm
YYC
- STL
2 stops40h 55m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$445
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/161:42 pm
STL
- YYC
1 stop11h 00m
American Airlines
Sun 6/217:00 am
YYC
- STL
1 stop16h 16m
American Airlines
Deal found 5/13![American Airlines logo]()
$472
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/205:06 pm
STL
- YYC
2 stops24h 04m
Multiple Airlines
Sun 6/287:00 am
YYC
- STL
1 stop24h 52m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/238:08 pm
STL
- YYC
1 stop19h 37m
Multiple Airlines
Tue 6/301:15 pm
YYC
- STL
2 stops25h 46m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/238:08 pm
STL
- YYC
1 stop19h 37m
Multiple Airlines
Sat 6/277:00 am
YYC
- STL
2 stops25h 32m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$495
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 May 15, 2026.
Search for one-way flight options from St. Louis to Calgary. Find affordable one-way fares based on user searches. Data last updated May 15, 2026.
This American Airlines deal was found by Cheapflights users on 5/13. 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 9/162:45 pm
STL
- YYC
1 stop9h 35m
American Airlines
Deal found 5/13![American Airlines logo]()
$176
This American Airlines deal was found by Cheapflights users on 5/15. 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 6/169:09 am
STL
- YYC
1 stop15h 33m
American Airlines
Deal found 5/15![American Airlines logo]()
$186
This American Airlines deal was found by Cheapflights users on 5/13. 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 8/249:31 am
STL
- YYC
1 stop14h 58m
American Airlines
Deal found 5/13![American Airlines logo]()
$213
This American Airlines deal was found by Cheapflights users on 5/15. 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 8/66:00 am
STL
- YYC
1 stop18h 29m
American Airlines
Deal found 5/15![American Airlines logo]()
$218
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Thu 8/65:10 am
STL
- YYC
1 stop14h 00m
United Airlines
Deal found 5/13![United Airlines logo]()
$227
This Air Canada deal was found by Cheapflights users on 5/15. 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 6/172:15 pm
STL
- YYC
1 stop9h 43m
Air Canada
Deal found 5/15![Air Canada logo]()
$230
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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.
Thu 8/65:37 pm
STL
- YYC
2 stops18h 13m
Alaska Airlines
Deal found 5/13![Alaska Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 7/254:52 pm
STL
- YYC
1 stop19h 08m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$233
This Air Canada deal was found by Cheapflights users on 5/13. 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 5/13![Air Canada logo]()
$239
This Justfly.com deal was found by Cheapflights users on 5/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:18 am
STL
- YYC
2 stops9h 22m
WestJet
Deal found 5/13![WestJet logo]()
$240
This Justfly.com deal was found by Cheapflights users on 5/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:21 am
STL
- YYC
2 stops10h 54m
WestJet
Deal found 5/15![WestJet logo]()
$241
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 May 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $327 (Kiwi.com) |
One-way from | $176 (American Airlines) |
Popular in | July |
Cheapest in | November |
Average price | $684 |
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 May 15, 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 8/23
6:33 pm-11:00 am
1 stop17h 27m
Calgary
Mon 8/31
12:30 am-5:30 pm
1 stop16h 00m
$327
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Fri 9/25
2:15 pm-11:06 pm
1 stop9h 51m
Calgary
Sat 10/3
6:35 am-4:45 pm
1 stop9h 10m
$467
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Tue 9/15
2:15 pm-11:06 pm
1 stop9h 51m
Calgary
Wed 9/23
7:15 am-11:01 pm
2 stops14h 46m
$469
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 9/21
2:15 pm-11:06 pm
1 stop9h 51m
Calgary
Wed 9/30
7:15 am-11:01 pm
2 stops14h 46m
$469
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 8/10
1:25 pm-11:29 pm
1 stop11h 04m
Calgary
Sat 8/15
7:00 am-11:59 pm
1 stop15h 59m
$483
Quickest round-trip
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Fri 8/28
1:36 pm-6:30 pm
1 stop5h 54m
Calgary
Fri 9/4
8:30 am-3:38 pm
1 stop6h 08m
$500
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 8/29
4:40 pm-9:48 pm
1 stop6h 08m
Calgary
Fri 9/4
8:30 am-3:38 pm
1 stop6h 08m
$500
Cheapest one-way
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sat 6/13
5:29 pm-10:37 pm
1 stop6h 08m
$227
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sun 8/9
2:32 pm-10:59 pm
1 stop9h 27m
$227
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Thu 8/6
7:56 pm-10:50 am
1 stop15h 54m
$227
Showing 1-10 of 14 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 May.
| 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, November is the cheapest month in which you can book a flight from St. Louis to Calgary (average of $331). Flying from St. Louis to Calgary in July is currently the most expensive (average of $698). 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 May 15, 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.
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.8
Boarding
8.1
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.
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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 May 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$200 | Average$686 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$267 | Average$632 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$331 | Average$608 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$446 | Average$640 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$519 | Average$708 | FlexibilityNo cancel fee | On-time60% |