$199+ Cheap flights from Calgary (YYC) to St. Louis (STL)
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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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Find cheap flights from Calgary to St. Louis 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 Calgary to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Calgary to St. LouisExplore the most affordable flight options available from Calgary to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
Explore the most affordable flight options available from Calgary to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:55 am
YYC
- STL
1 stop12h 07m
Air Canada
Sun 8/912:10 pm
STL
- YYC
1 stop10h 03m
Air Canada
Deal found 6/5![Air Canada logo]()
$392
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.
Wed 9/3012:20 am
YYC
- STL
1 stop8h 20m
Multiple Airlines
Mon 10/510:35 am
STL
- YYC
1 stop12h 15m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$408
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:25 am
YYC
- STL
1 stop8h 17m
Air Canada
Wed 8/262:40 pm
STL
- YYC
1 stop12h 11m
Air Canada
Deal found 6/8![Air Canada logo]()
$409
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:00 am
YYC
- STL
2 stops26h 28m
WestJet
Sun 7/266:21 am
STL
- YYC
2 stops14h 19m
WestJet
Deal found 6/9![WestJet logo]()
$452
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.
Wed 7/2212:20 am
YYC
- STL
1 stop16h 17m
Multiple Airlines
Sun 7/266:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$455
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/211:41 pm
YYC
- STL
1 stop9h 35m
American Airlines
Mon 7/66:55 am
STL
- YYC
1 stop17h 54m
American Airlines
Deal found 6/7![American Airlines logo]()
$456
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:45 pm
YYC
- STL
1 stop17h 17m
Air Canada
Tue 7/142:40 pm
STL
- YYC
1 stop11h 41m
Air Canada
Deal found 6/8![Air Canada logo]()
$459
Best flights from Calgary to St. LouisDiscover carefully curated flight deals from Calgary to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
Discover carefully curated flight deals from Calgary to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:55 am
YYC
- STL
1 stop12h 07m
Air Canada
Sun 8/912:10 pm
STL
- YYC
1 stop10h 03m
Air Canada
Deal found 6/5![Air Canada logo]()
$392
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.
Thu 10/19:00 pm
YYC
- STL
2 stops11h 40m
Multiple Airlines
Mon 10/510:35 am
STL
- YYC
1 stop12h 15m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$439
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:00 pm
YYC
- STL
1 stop9h 36m
Delta
Sun 10/182:15 pm
STL
- YYC
1 stop9h 58m
Delta
Deal found 6/7![Delta logo]()
$452
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:00 am
YYC
- STL
2 stops26h 28m
WestJet
Sun 7/266:21 am
STL
- YYC
2 stops14h 19m
WestJet
Deal found 6/9![WestJet logo]()
$452
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/211:41 pm
YYC
- STL
1 stop9h 35m
American Airlines
Mon 7/66:55 am
STL
- YYC
1 stop17h 54m
American Airlines
Deal found 6/7![American Airlines logo]()
$456
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.
Wed 7/2212:20 am
YYC
- STL
1 stop16h 17m
Multiple Airlines
Sun 7/266:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$455
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/79:00 pm
YYC
- STL
2 stops10h 19m
WestJet
Tue 7/1411:18 am
STL
- YYC
2 stops9h 22m
WestJet
Deal found 6/8![WestJet logo]()
$461
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am
YYC
- STL
1 stop10h 01m
WestJet
Sun 10/186:00 am
STL
- YYC
2 stops12h 10m
WestJet
Deal found 6/7![WestJet logo]()
$468
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:00 pm
YYC
- STL
2 stops13h 55m
WestJet
Mon 10/56:40 am
STL
- YYC
2 stops11h 30m
WestJet
Deal found 6/9![WestJet logo]()
$469
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:00 pm
YYC
- STL
2 stops10h 19m
WestJet
Sun 7/266:21 am
STL
- YYC
2 stops14h 19m
WestJet
Deal found 6/9![WestJet logo]()
$472
Last-minute flights from Calgary to St. LouisDiscover last-minute flight deals from Calgary to St. Louis. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Calgary to St. Louis. Data last updated June 10, 2026 and is based on user searches.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:00 am
YYC
- STL
1 stop6h 02m
American Airlines
Sun 6/218:36 am
STL
- YYC
1 stop14h 07m
American Airlines
Deal found 6/7![American Airlines logo]()
$495
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/211:41 pm
YYC
- STL
1 stop9h 35m
American Airlines
Mon 7/66:55 am
STL
- YYC
1 stop17h 54m
American Airlines
Deal found 6/7![American Airlines logo]()
$456
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/217:00 am
YYC
- STL
2 stops15h 23m
WestJet
Mon 7/611:18 am
STL
- YYC
1 stop6h 42m
WestJet
Deal found 6/7![WestJet logo]()
$493
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:10 pm
YYC
- STL
2 stops15h 30m
WestJet
Mon 6/296:21 am
STL
- YYC
2 stops14h 19m
WestJet
Deal found 6/8![WestJet logo]()
$512
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:45 pm
YYC
- STL
1 stop17h 17m
Air Canada
Tue 7/142:40 pm
STL
- YYC
1 stop11h 41m
Air Canada
Deal found 6/8![Air Canada logo]()
$459
This Justfly.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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/79:00 pm
YYC
- STL
2 stops10h 19m
WestJet
Tue 7/1411:18 am
STL
- YYC
2 stops9h 22m
WestJet
Deal found 6/8![WestJet logo]()
$461
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.
Wed 7/2212:20 am
YYC
- STL
1 stop16h 17m
Multiple Airlines
Sun 7/266:34 pm
STL
- YYC
2 stops21h 41m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$455
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:00 pm
YYC
- STL
2 stops10h 19m
WestJet
Sun 7/266:21 am
STL
- YYC
2 stops14h 19m
WestJet
Deal found 6/9![WestJet logo]()
$472
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:00 am
YYC
- STL
2 stops26h 28m
WestJet
Sun 7/266:21 am
STL
- YYC
2 stops14h 19m
WestJet
Deal found 6/9![WestJet logo]()
$452
One-way flights from Calgary to St. LouisSearch for one-way flight options from Calgary to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
Search for one-way flight options from Calgary to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
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.
Thu 8/67:00 am
YYC
- STL
1 stop9h 37m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$199
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 8/268:45 am
YYC
- STL
1 stop9h 38m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$200
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 8/2412:20 am
YYC
- STL
1 stop16h 10m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$209
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 8/47:00 am
YYC
- STL
1 stop16h 16m
American Airlines
Deal found 6/5![American Airlines logo]()
$211
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:20 am
YYC
- STL
2 stops10h 02m
Air Canada
Deal found 6/7![Air Canada logo]()
$230
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:00 am
YYC
- STL
1 stop16h 42m
Air Canada
Deal found 6/8![Air Canada logo]()
$242
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am
YYC
- STL
2 stops15h 01m
WestJet
Deal found 6/9![WestJet logo]()
$244
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:45 pm
YYC
- STL
1 stop17h 17m
Air Canada
Deal found 6/7![Air Canada logo]()
$249
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:50 pm
YYC
- STL
2 stops15h 27m
WestJet
Deal found 6/9![WestJet logo]()
$250
Find flight deals from Calgary to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to St. Louis (STL). 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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $392 (Air Canada) |
One-way from | $199 (Kiwi.com) |
Popular in | June |
Cheapest in | May |
Average price | $596 |
Cheapflights Fare Finder
Customize your flight search to find flights from Calgary to St. Louis 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 10, 2026.
Use the filters below to find and compare flights from Calgary to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Wed 8/5
12:55 am-2:02 pm
1 stop12h 07m
Lambert-St Louis
Sun 8/9
12:10 pm-9:13 pm
1 stop10h 03m
$392
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Thu 10/1
9:00 pm-9:40 am
2 stops11h 40m
Lambert-St Louis
Mon 10/5
10:35 am-9:50 pm
1 stop12h 15m
$439
Quickest round-trip
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Thu 10/15
2:00 pm-12:36 am
1 stop9h 36m
Lambert-St Louis
Sun 10/18
2:15 pm-11:13 pm
1 stop9h 58m
$452
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Fri 7/24
7:00 am-10:28 am
2 stops26h 28m
Lambert-St Louis
Sun 7/26
6:21 am-7:40 pm
2 stops14h 19m
$452
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Wed 7/22
12:20 am-5:37 pm
1 stop16h 17m
Lambert-St Louis
Sun 7/26
6:34 pm-3:15 pm
2 stops21h 41m
$455
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Sun 6/21
1:41 pm-12:16 am
1 stop9h 35m
Lambert-St Louis
Mon 7/6
6:55 am-11:49 pm
1 stop17h 54m
$456
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Tue 7/7
9:00 pm-8:19 am
2 stops10h 19m
Lambert-St Louis
Tue 7/14
11:18 am-7:40 pm
2 stops9h 22m
$461
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Thu 10/15
7:00 am-6:01 pm
1 stop10h 01m
Lambert-St Louis
Sun 10/18
6:00 am-5:10 pm
2 stops12h 10m
$468
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Thu 10/1
8:00 pm-10:55 am
2 stops13h 55m
Lambert-St Louis
Mon 10/5
6:40 am-5:10 pm
2 stops11h 30m
$469
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Thu 7/23
9:00 pm-8:19 am
2 stops10h 19m
Lambert-St Louis
Sun 7/26
6:21 am-7:40 pm
2 stops14h 19m
$472
Showing 1-10 of 17 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Calgary-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Calgary-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Calgary-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Calgary-St. Louis 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 Calgary-St. Louis 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 Calgary to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Calgary with our price prediction graph.
YYC-STL
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 Calgary to St. Louis
What is the cheapest month to book a flight from Calgary to St. Louis?
Currently, May is the cheapest month in which you can book a flight from Calgary to St. Louis (average of $298). Flying from Calgary to St. Louis in June is currently the most expensive (average of $596). 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 Calgary to St. Louis?
Related info for your journey
Find useful and relevant information for your journey from Calgary to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsO'Fallon
Edwardsville
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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