$288+ Cheap flights from St. Louis (STL) to Calgary (YYC)
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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYC
Dec 15 — Dec 221
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 November 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 November 15, 2026.
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:54 pm -
3 stops25h 36m
Tue 12/159:50 am -
2 stops25h 14m
Deal found 11/11![Multiple Airlines logo]()
$483
This Alaska Airlines deal was found by Cheapflights users on 11/13. 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.
Wed 12/96:04 am -
1 stop15h 33m
Sun 12/139:07 am -
1 stop14h 52m
Deal found 11/13![Alaska Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/306:50 pm -
2 stops19h 13m
Mon 12/77:00 am -
1 stop13h 57m
Deal found 11/12![United Airlines logo]()
$516
This Delta deal was found by Cheapflights users on 11/12. 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.
Wed 12/910:06 am -
2 stops14h 15m
Sun 12/138:45 am -
1 stop7h 45m
Deal found 11/12![Delta logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Wed 12/306:21 pm -
1 stop24h 34m
Wed 1/68:45 am -
2 stops33h 04m
Deal found 11/13![Multiple Airlines logo]()
$527
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 12/42:50 pm -
1 stop8h 03m
Sat 12/53:06 pm -
1 stop5h 51m
Deal found 11/13![United Airlines logo]()
$532
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Wed 12/306:21 pm -
1 stop24h 34m
Thu 1/710:00 am -
1 stop11h 37m
Deal found 11/13![Multiple Airlines logo]()
$536
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Fri 12/117:54 pm -
2 stops15h 21m
Thu 12/171:25 am -
1 stop9h 28m
Deal found 11/13![Multiple Airlines logo]()
$538
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 November 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 November 15, 2026.
This United Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:30 am -
1 stop6h 05m
Sun 12/137:00 am -
1 stop5h 53m
Deal found 11/10![United Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 11/10. 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.
Wed 12/92:17 pm -
2 stops10h 04m
Sun 12/131:43 pm -
1 stop11h 03m
Deal found 11/10![Delta logo]()
$521
This United Airlines deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/68:52 am -
1 stop14h 01m
Thu 1/710:40 am -
1 stop6h 14m
Deal found 11/10![United Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 11/10. 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.
Fri 1/83:26 pm -
1 stop6h 35m
Sun 1/177:15 am -
2 stops9h 25m
Deal found 11/10![Delta logo]()
$521
This Delta deal was found by Cheapflights users on 11/10. 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.
Wed 1/1310:12 am -
2 stops14h 11m
Fri 1/227:15 am -
2 stops13h 35m
Deal found 11/10![Delta logo]()
$526
This Delta deal was found by Cheapflights users on 11/10. 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.
Mon 1/1110:12 am -
2 stops14h 11m
Wed 1/207:15 am -
2 stops13h 35m
Deal found 11/10![Delta logo]()
$526
This United Airlines deal was found by Cheapflights users on 11/11. 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 12/42:50 pm -
1 stop8h 03m
Sat 12/53:06 pm -
1 stop5h 51m
Deal found 11/11![United Airlines logo]()
$626
This Delta deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:30 am -
1 stop6h 55m
Sun 1/31:40 pm -
1 stop11h 06m
Deal found 11/10![Delta logo]()
$627
This Delta deal was found by Cheapflights users on 11/10. 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.
Sun 12/67:08 am -
2 stops11h 22m
Wed 12/912:15 pm -
2 stops11h 11m
Deal found 11/10![Delta logo]()
$629
This Delta deal was found by Cheapflights users on 11/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/203:26 pm -
1 stop6h 35m
Thu 1/288:45 am -
2 stops12h 05m
Deal found 11/14![Delta logo]()
$631
Last-minute flights from St. Louis to CalgaryDiscover last-minute flight deals from St. Louis to Calgary. Data last updated November 15, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Calgary. Data last updated November 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/306:50 pm -
2 stops19h 13m
Mon 12/77:00 am -
1 stop13h 57m
Deal found 11/12![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 12/42:50 pm -
1 stop8h 03m
Sat 12/53:06 pm -
1 stop5h 51m
Deal found 11/13![United Airlines logo]()
$532
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:54 pm -
3 stops25h 36m
Tue 12/159:50 am -
2 stops25h 14m
Deal found 11/11![Multiple Airlines logo]()
$483
This United Airlines deal was found by Cheapflights users on 11/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:30 am -
1 stop6h 05m
Sun 12/137:00 am -
1 stop5h 53m
Deal found 11/12![United Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 11/12. 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.
Wed 12/910:06 am -
2 stops14h 15m
Sun 12/138:45 am -
1 stop7h 45m
Deal found 11/12![Delta logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Fri 12/117:54 pm -
2 stops15h 21m
Thu 12/171:25 am -
1 stop9h 28m
Deal found 11/13![Multiple Airlines logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Wed 12/306:21 pm -
1 stop24h 34m
Wed 1/68:45 am -
2 stops33h 04m
Deal found 11/13![Multiple Airlines logo]()
$527
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Wed 12/306:21 pm -
1 stop24h 34m
Thu 1/710:00 am -
1 stop11h 37m
Deal found 11/13![Multiple Airlines logo]()
$536
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 November 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 November 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:00 am -
1 stop15h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Alaska Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 11/9. 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.
Fri 12/256:30 am -
2 stops15h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Delta logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Fri 12/256:21 pm -
3 stops40h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$384
This oojo deal was found by Cheapflights users on 11/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:48 pm -
1 stop18h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/14![WestJet logo]()
$480
This Kiwi.com deal was found by Cheapflights users on 11/14. 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.
Tue 11/176:00 am -
3 stops32h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/14![Multiple Airlines logo]()
$546
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 November 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $445 (Mytrip) |
One-way from | $288 (Alaska Airlines) |
Popular in | February |
Cheapest in | April |
Average price | $606 |
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 7,457,451 searches. Data last updated November 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 Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Fri 12/25
6:00 am-8:33 pm
1 stop15h 33m
Calgary
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$288
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Fri 12/25
6:30 am-9:25 pm
2 stops15h 55m
Calgary
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$317
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Fri 12/25
6:21 pm-10:15 am
3 stops40h 54m
Calgary
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$384
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Tue 11/17
5:48 pm-11:05 am
1 stop18h 17m
Calgary
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$480
Quickest round-trip
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Wed 12/9
6:30 am-11:35 am
1 stop6h 05m
Calgary
Sun 12/13
7:00 am-1:53 pm
1 stop5h 53m
$511
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Wed 1/6
8:52 am-9:53 pm
1 stop14h 01m
Calgary
Thu 1/7
10:40 am-5:54 pm
1 stop6h 14m
$511
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Wed 12/9
2:17 pm-11:21 pm
2 stops10h 04m
Calgary
Sun 12/13
1:43 pm-1:46 am
1 stop11h 03m
$521
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Fri 1/8
3:26 pm-9:01 pm
1 stop6h 35m
Calgary
Sun 1/17
7:15 am-5:40 pm
2 stops9h 25m
$521
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Wed 1/13
10:12 am-11:23 pm
2 stops14h 11m
Calgary
Fri 1/22
7:15 am-9:50 pm
2 stops13h 35m
$526
St. LouisCalgary
STL Lambert-St Louis - YYC Calgary
STLYYC
Lambert-St Louis
Mon 1/11
10:12 am-11:23 pm
2 stops14h 11m
Calgary
Wed 1/20
7:15 am-9:50 pm
2 stops13h 35m
$526
Showing 1-10 of 15 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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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 86 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, April is the cheapest month in which you can book a flight from St. Louis to Calgary (average of $519). Flying from St. Louis to Calgary in February is currently the most expensive (average of $906). 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?
Airfare is below average for this route at the moment.
St. Louis to Calgary flights typically cost between $590 and $668 in January.The cheapest round-trip price found within the last 5 days was $445 on Multiple Airlines (Jan 6-Jan 12).
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 November 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.
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Entertainment
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Calgary. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Calgary?
Book flights to Calgary if you plan to visit one of these locationsCanmore
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Other flights to Calgary
Explore flights to Calgary departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 15, 2026.
Complete your trip
Complete your trip to Calgary by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Calgary, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Calgary flights
Browse other St. Louis and Calgary flight options. Last updated on November 15, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on November 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from St. Louis to Calgary
Discover the top 5 airlines that operate flights from St. Louis to Calgary. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated November 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$266 | Average$652 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$407 | Average$805 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$434 | Average$680 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$483 | Average$718 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$557 | Average$691 | FlexibilityNo cancel fee | On-time71% |