$196+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
Apr 12 — Apr 191
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 March 13, 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 March 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/1312:30 am
YYC
- STL
1 stop29h 20m
Multiple Airlines
Sat 4/188:23 pm
STL
- YYC
1 stop23h 46m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 4/2512:30 am
YYC
- STL
1 stop29h 20m
Multiple Airlines
Sun 5/34:59 pm
STL
- YYC
2 stops19h 01m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 3/12. 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.
Sat 5/21:40 pm
YYC
- STL
1 stop9h 06m
American Airlines
Mon 5/118:03 pm
STL
- YYC
1 stop17h 56m
American Airlines
Deal found 3/12![American Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:40 am
YYC
- STL
2 stops14h 33m
Delta
Thu 4/302:20 pm
STL
- YYC
1 stop9h 40m
Delta
Deal found 3/9![Delta logo]()
$419
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/311:30 pm
YYC
- STL
1 stop23h 09m
American Airlines
Sat 4/44:13 pm
STL
- YYC
1 stop20h 31m
American Airlines
Deal found 3/9![American Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:40 am
YYC
- STL
1 stop8h 46m
Delta
Fri 4/172:20 pm
STL
- YYC
1 stop9h 40m
Delta
Deal found 3/9![Delta logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 5/28:00 pm
YYC
- STL
2 stops33h 50m
Multiple Airlines
Mon 5/115:27 pm
STL
- YYC
1 stop18h 33m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$433
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 March 13, 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 March 13, 2026.
This Delta deal was found by Cheapflights users on 3/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:40 am
YYC
- STL
2 stops13h 39m
Delta
Fri 4/172:20 pm
STL
- YYC
1 stop9h 40m
Delta
Deal found 3/8![Delta logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 5/28:00 pm
YYC
- STL
2 stops33h 50m
Multiple Airlines
Mon 5/115:27 pm
STL
- YYC
1 stop18h 33m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:30 am
YYC
- STL
1 stop6h 54m
Delta
Thu 4/26:29 am
STL
- YYC
2 stops13h 43m
Delta
Deal found 3/9![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3012:30 pm
YYC
- STL
1 stop10h 51m
Delta
Sat 4/46:29 am
STL
- YYC
2 stops12h 50m
Delta
Deal found 3/11![Delta logo]()
$493
This Delta deal was found by Cheapflights users on 3/10. 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.
Tue 3/316:30 am
YYC
- STL
1 stop6h 54m
Delta
Sat 4/46:29 am
STL
- YYC
2 stops10h 46m
Delta
Deal found 3/10![Delta logo]()
$493
Last-minute flights from Calgary to St. LouisDiscover last-minute flight deals from Calgary to St. Louis. Data last updated March 13, 2026 and is based on user searches.
Discover last-minute flight deals from Calgary to St. Louis. Data last updated March 13, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/311:30 pm
YYC
- STL
1 stop23h 09m
American Airlines
Sat 4/44:13 pm
STL
- YYC
1 stop20h 31m
American Airlines
Deal found 3/9![American Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 3/12. 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.
Sun 4/1212:30 pm
YYC
- STL
1 stop10h 51m
Delta
Sun 4/197:25 am
STL
- YYC
2 stops14h 15m
Delta
Deal found 3/12![Delta logo]()
$449
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/1312:30 am
YYC
- STL
1 stop29h 20m
Multiple Airlines
Sat 4/188:23 pm
STL
- YYC
1 stop23h 46m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:40 am
YYC
- STL
2 stops14h 56m
Delta
Fri 4/172:20 pm
STL
- YYC
1 stop9h 40m
Delta
Deal found 3/9![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:40 am
YYC
- STL
2 stops14h 33m
Delta
Thu 4/302:20 pm
STL
- YYC
1 stop9h 40m
Delta
Deal found 3/9![Delta logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 4/2512:30 am
YYC
- STL
1 stop29h 20m
Multiple Airlines
Sun 5/34:59 pm
STL
- YYC
2 stops19h 01m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$375
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 March 13, 2026.
Search for one-way flight options from Calgary to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/711:30 pm
YYC
- STL
2 stops41h 04m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$196
This American Airlines deal was found by Cheapflights users on 3/9. 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 4/231:40 pm
YYC
- STL
1 stop9h 06m
American Airlines
Deal found 3/9![American Airlines logo]()
$218
This American Airlines deal was found by Cheapflights users on 3/11. 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.
Sat 4/251:40 pm
YYC
- STL
1 stop9h 06m
American Airlines
Deal found 3/11![American Airlines logo]()
$225
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/241:40 pm
YYC
- STL
1 stop17h 47m
American Airlines
Deal found 3/10![American Airlines logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 4/239:00 am
YYC
- STL
3 stops44h 50m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/306:30 am
YYC
- STL
1 stop9h 35m
Delta
Deal found 3/11![Delta logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/257:50 am
YYC
- STL
3 stops34h 31m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:40 am
YYC
- STL
2 stops14h 45m
Delta
Deal found 3/11![Delta logo]()
$254
This Delta deal was found by Cheapflights users on 3/12. 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.
Sun 4/2612:29 pm
YYC
- STL
1 stop10h 56m
Delta
Deal found 3/12![Delta logo]()
$259
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 March 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $311 (Kiwi.com) |
One-way from | $196 (Kiwi.com) |
Popular in | November |
Cheapest in | October |
Average price | $508 |
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 March 13, 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
Tue 4/14
6:40 am-9:19 pm
2 stops13h 39m
Lambert-St Louis
Fri 4/17
2:20 pm-11:00 pm
1 stop9h 40m
$424
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Sat 5/2
8:00 pm-6:50 am
2 stops33h 50m
Lambert-St Louis
Mon 5/11
5:27 pm-11:00 am
1 stop18h 33m
$433
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Tue 3/31
6:30 am-2:24 pm
1 stop6h 54m
Lambert-St Louis
Thu 4/2
6:29 am-7:12 pm
2 stops13h 43m
$478
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Mon 3/30
12:30 pm-12:21 am
1 stop10h 51m
Lambert-St Louis
Sat 4/4
6:29 am-6:19 pm
2 stops12h 50m
$493
Quickest round-trip
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Tue 3/31
6:30 am-2:24 pm
1 stop6h 54m
Lambert-St Louis
Sat 4/4
6:29 am-4:15 pm
2 stops10h 46m
$493
Cheapest one-way
Quickest one-way
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Mon 4/6
12:30 am-10:30 am
1 stop9h 00m
$203
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Fri 4/24
7:50 am-7:32 pm
3 stops34h 42m
$218
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Sat 4/25
1:40 pm-11:46 pm
1 stop9h 06m
$225
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Fri 4/24
1:40 pm-8:27 am
1 stop17h 47m
$235
CalgarySt. Louis
YYC - STL
YYCSTL
Calgary
Thu 4/23
9:00 am-6:50 am
3 stops44h 50m
$242
Showing 1-10 of 15 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 $299). Flying from Calgary to St. Louis in January is currently the most expensive (average of $532). 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?
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated March 13, 2026.
See what other customers who have flown with United Airlines from Calgary to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Comfort
7.3
Crew
8.1
Boarding
7.7
Entertainment
7.1
Food
6.6
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Overall
7.4
Comfort
7.3
Crew
8.1
Boarding
7.7
Entertainment
7.1
Food
6.6
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
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 locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Calgary and St. Louis flights
Browse other Calgary and St. Louis flight options. Last updated on March 13, 2026.
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Browse through other flights departing from Calgary. Flights are based on user searches made on Cheapflights and were last updated on March 13, 2026.
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Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 13, 2026.
Top airline flying from Calgary to St. Louis
Discover the top airline that operate flights from Calgary to St. Louis. 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 March 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$422 | Average$509 | FlexibilityNo cancel fee | On-time69% |