Cheap Flights From Lambert-St. Louis Intl. (STL) To Calgary Intl. (YYC)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from St. Louis (STL) to Calgary (YYC)

The cheapest flights to Calgary Intl. found within the past 7 days were CA $674 round trip and CA $297 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $674 Roundtrip, found 3 days ago
CA $674
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $674 found 3 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $680 Roundtrip, found 3 days ago
CA $680
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $680 found 3 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $697 Roundtrip, found 3 days ago
CA $697
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $697 found 3 days ago
Mon, Aug 31 - Wed, Sep 2
STL
St. Louis
YYC
Calgary
CA $706 Roundtrip, found 2 days ago
CA $706
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Aug 31 from St. Louis to Calgary, returning Wed, Sep 2, priced at CA $706 found 2 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $712 Roundtrip, found 3 days ago
CA $712
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $712 found 3 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $723 Roundtrip, found 3 days ago
CA $723
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $723 found 3 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $749 Roundtrip, found 3 days ago
CA $749
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $749 found 3 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $751 Roundtrip, found 3 days ago
CA $751
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $751 found 3 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $765 Roundtrip, found 3 days ago
CA $765
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $765 found 3 days ago
Tue, Apr 21 - Fri, May 8
STL
St. Louis
YYC
Calgary
CA $767 Roundtrip, found 3 days ago
CA $767
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Apr 21 from St. Louis to Calgary, returning Fri, May 8, priced at CA $767 found 3 days ago

Frequently asked questions

Are there direct flights from STL to Calgary Intl. Airport (YYC)?
You'll need to be prepared for a stopover when traveling from STL to YYC. No direct flights are available on this route, however Delta, American Airlines and Air Canada will get you to your destination as fast as possible.
What airlines fly from STL to YYC Calgary International Airport?
Unfortunately, you won't find any airlines that fly direct from Lambert-St. Louis Intl. Airport (STL) to Calgary Intl. Airport (YYC). But don't let that discourage you from going. Use any stopover as an opportunity to stretch your legs, check out the local fare and potentially find the next city you want to explore further.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Explore More Ways to Travel with Travelocity

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.