$210+ Cheap flights from Calgary (YYC) to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
Nov 25 — Dec 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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 October 26, 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 October 26, 2026.
This Mytrip deal was found by Cheapflights users on 10/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:55 pm -
2 stops20h 02m
Wed 12/97:54 pm -
2 stops15h 21m
Deal found 10/24![Multiple Airlines logo]()
$430
This Gotogate deal was found by Cheapflights users on 10/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
1 stop8h 26m
Wed 12/94:05 pm -
1 stop8h 01m
Deal found 10/24![Air Canada logo]()
$457
This Delta deal was found by Cheapflights users on 10/24. 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 12/37:25 am -
2 stops9h 05m
Wed 12/92:15 pm -
1 stop10h 06m
Deal found 10/24![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 10/23. 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 12/78:45 am -
2 stops12h 53m
Mon 12/142:15 pm -
1 stop10h 06m
Deal found 10/23![Delta logo]()
$488
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/318:00 am -
1 stop8h 42m
Mon 1/44:21 pm -
2 stops18h 54m
Deal found 10/21![Multiple Airlines logo]()
$520
This Delta deal was found by Cheapflights users on 10/25. 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 12/171:43 pm -
1 stop11h 03m
Mon 12/2111:15 am -
2 stops13h 00m
Deal found 10/25![Delta logo]()
$521
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:15 pm -
3 stops35h 57m
Mon 12/147:54 pm -
2 stops26h 21m
Deal found 10/23![Multiple Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 10/23. 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 12/72:01 pm -
1 stop8h 19m
Mon 12/142:54 pm -
1 stop8h 04m
Deal found 10/23![American Airlines logo]()
$530
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 October 26, 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 October 26, 2026.
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:55 pm -
2 stops20h 02m
Wed 12/97:54 pm -
2 stops15h 21m
Deal found 10/23![Multiple Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 10/24. 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 12/37:25 am -
2 stops9h 05m
Wed 12/92:15 pm -
1 stop10h 06m
Deal found 10/24![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 10/23. 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 12/78:45 am -
2 stops12h 53m
Mon 12/142:15 pm -
1 stop10h 06m
Deal found 10/23![Delta logo]()
$488
This United deal was found by Cheapflights users on 10/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3012:30 pm -
1 stop9h 24m
Tue 4/69:23 am -
2 stops14h 45m
Deal found 10/22![Multiple Airlines logo]()
$522
This Delta deal was found by Cheapflights users on 10/25. 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 12/171:43 pm -
1 stop11h 03m
Mon 12/2111:15 am -
2 stops13h 00m
Deal found 10/25![Delta logo]()
$521
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:15 pm -
3 stops35h 57m
Mon 12/147:54 pm -
2 stops26h 21m
Deal found 10/23![Multiple Airlines logo]()
$528
This United deal was found by Cheapflights users on 10/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/317:00 am -
1 stop14h 08m
Mon 1/44:05 pm -
1 stop8h 01m
Deal found 10/21![Multiple Airlines logo]()
$531
Last-minute flights from Calgary to St. LouisDiscover last-minute flight deals from Calgary to St. Louis. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Calgary to St. Louis. Data last updated October 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/23. 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 10/256:35 am -
1 stop10h 09m
Wed 10/287:00 am -
2 stops14h 40m
Deal found 10/23![Delta logo]()
$577
This Delta deal was found by Cheapflights users on 10/23. 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 10/256:35 am -
1 stop10h 09m
Thu 10/2912:28 pm -
1 stop9h 12m
Deal found 10/23![Delta logo]()
$592
This FlightHub deal was found by Cheapflights users on 10/23. 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.
Mon 10/2612:25 am -
1 stop7h 44m
Tue 10/2712:00 pm -
1 stop7h 55m
Deal found 10/23![WestJet logo]()
$734
This Delta deal was found by Cheapflights users on 10/23. 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 10/276:35 am -
1 stop5h 57m
Wed 10/282:22 pm -
1 stop9h 48m
Deal found 10/23![Delta logo]()
$562
This Delta deal was found by Cheapflights users on 10/25. 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 10/306:35 am -
1 stop5h 57m
Tue 11/311:20 am -
2 stops12h 50m
Deal found 10/25![Delta logo]()
$591
This Delta deal was found by Cheapflights users on 10/25. 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 11/62:40 pm -
1 stop8h 41m
Tue 11/102:20 pm -
1 stop9h 57m
Deal found 10/25![Delta logo]()
$658
This Delta deal was found by Cheapflights users on 10/25. 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 11/62:40 pm -
1 stop8h 41m
Sun 11/296:13 am -
2 stops10h 22m
Deal found 10/25![Delta logo]()
$685
This Delta deal was found by Cheapflights users on 10/25. 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 11/1111:15 am -
2 stops12h 07m
Fri 11/136:13 am -
2 stops11h 57m
Deal found 10/25![Delta logo]()
$644
This Delta deal was found by Cheapflights users on 10/25. 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 11/227:25 am -
1 stop6h 05m
Sun 11/292:20 pm -
1 stop9h 57m
Deal found 10/25![Delta logo]()
$569
This WestJet deal was found by Cheapflights users on 10/25. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/228:45 am -
1 stop15h 11m
Sun 11/296:13 am -
2 stops12h 17m
Deal found 10/25![WestJet logo]()
$706
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 October 26, 2026.
Search for one-way flight options from Calgary to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 12/106:55 am -
3 stops52h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/201:15 pm -
3 stops21h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/1911:55 pm -
3 stops35h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/911:55 pm -
3 stops35h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 12/58:00 pm -
2 stops38h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$244
This Delta deal was found by Cheapflights users on 10/24. 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 12/98:45 am -
1 stop5h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Delta logo]()
$252
This Trip.com deal was found by Cheapflights users on 10/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:07 am -
1 stop7h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 10/25. 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 12/102:25 pm -
1 stop9h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Delta logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/228:10 am -
3 stops47h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$276
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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $430 (Mytrip) |
One-way from | $210 (Kiwi.com) |
Popular in | June |
Cheapest in | May |
Average price | $497 |
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 7,457,451 searches. Data last updated October 26, 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 Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Thu 12/10
6:55 am-10:57 am
3 stops52h 02m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$210
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Wed 12/9
8:00 pm-10:57 am
2 stops38h 57m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$234
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Sat 12/5
8:00 pm-10:57 am
2 stops38h 57m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$244
Quickest round-trip
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Wed 12/9
8:45 am-2:44 pm
1 stop5h 59m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$252
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Sat 12/5
9:07 am-4:40 pm
1 stop7h 33m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$261
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Thu 11/19
2:20 pm-11:22 pm
1 stop9h 02m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$313
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Sun 11/22
7:25 am-5:41 pm
1 stop10h 16m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$313
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Thu 11/12
8:45 am-9:42 pm
2 stops12h 57m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$313
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Sun 11/29
7:00 am-11:32 pm
1 stop16h 32m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$319
CalgarySt. Louis
YYC Calgary - STL Lambert-St Louis
YYCSTL
Calgary
Thu 12/3
2:55 pm-10:57 am
2 stops20h 02m
Lambert-St Louis
Wed 12/9
7:54 pm-11:15 am
2 stops15h 21m
$454
Showing 1-10 of 16 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 $320). Flying from Calgary to St. Louis in June is currently the most expensive (average of $694). 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?
Airfare is below average for this route at the moment.
Calgary to St. Louis flights typically cost between $568 and $584 in December.The cheapest round-trip price found within the last 5 days was $430 on Multiple Airlines (Dec 3-Dec 9).
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 October 26, 2026.
See what other customers who have flown with WestJet 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
7.2
Crew
7.9
Comfort
7.1
Food
6.2
Boarding
7.4
Entertainment
6.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2023
YYC - PSP
Overall
7.2
Crew
7.9
Comfort
7.1
Food
6.2
Boarding
7.4
Entertainment
6.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2023
YYC - PSP
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 locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Calgary
Popular flights
St. Louis flight routes
Alternative routes for Calgary to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Calgary to St. Louis by cabin class
Find flights from Calgary to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Calgary and St. Louis flights
Browse other Calgary and St. Louis flight options. Last updated on October 26, 2026.
Other flights from Calgary
Browse through other flights departing from Calgary. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 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 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$364 | Average$504 | FlexibilityNo cancel fee | On-time60% |