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Cheap flights from St. Louis to Calgary from C$ 259

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Calgary departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Calgary

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:05 a.m. - 6:31 p.m.
STL
-
YYC
12h 26m
2 stops
Air Canada Logo
6:05 p.m. - 12:06 p.m.
YYC
-
STL
17h 01m
1 stop
C$ 583Air Canada
Fri, 8 May - Fri, 15 May
Air Canada Logo
7:05 a.m. - 10:58 p.m.
STL
-
YYC
16h 53m
1 stop
Air Canada Logo
12:55 a.m. - 12:06 p.m.
YYC
-
STL
10h 11m
1 stop
C$ 621Air Canada
Fri, 8 May - Thu, 14 May
Air Canada Logo
1:05 p.m. - 9:32 p.m.
STL
-
YYC
9h 27m
1 stop
Air Canada Logo
10:30 a.m. - 8:09 p.m.
YYC
-
STL
8h 39m
1 stop
C$ 633Air Canada
Tue, 5 May - Sat, 9 May
United Airlines Logo
1:36 p.m. - 6:30 p.m.
STL
-
YYC
5h 54m
1 stop
United Airlines Logo
6:00 a.m. - 12:40 p.m.
YYC
-
STL
5h 40m
1 stop
C$ 637United Airlines
Tue, 15 Sep - Wed, 23 Sep
Air Canada Logo
1:05 p.m. - 9:32 p.m.
STL
-
YYC
9h 27m
1 stop
Air Canada Logo
9:20 a.m. - 8:09 p.m.
YYC
-
STL
9h 49m
2 stops
C$ 641Air Canada
Tue, 5 May - Sat, 9 May
Delta Logo
12:10 p.m. - 11:06 p.m.
STL
-
YYC
11h 56m
2 stops
Delta Logo
2:00 p.m. - 12:36 a.m.
YYC
-
STL
9h 36m
1 stop
C$ 651Delta
Tue, 15 Sep - Wed, 23 Sep
Delta Logo
12:10 p.m. - 11:06 p.m.
STL
-
YYC
11h 56m
2 stops
Delta Logo
7:15 a.m. - 11:01 p.m.
YYC
-
STL
14h 46m
2 stops
C$ 658Delta
Tue, 15 Sep - Wed, 23 Sep
Air Canada Logo
7:05 a.m. - 6:31 p.m.
STL
-
YYC
12h 26m
2 stops
Air Canada Logo
8:30 p.m. - 12:06 p.m.
YYC
-
STL
14h 36m
2 stops
C$ 665Air Canada
Fri, 8 May - Fri, 15 May
United Airlines Logo
5:33 p.m. - 10:40 p.m.
STL
-
YYC
6h 07m
1 stop
United Airlines Logo
8:30 a.m. - 3:46 p.m.
YYC
-
STL
6h 16m
1 stop
C$ 667United Airlines
Mon, 13 Jul - Fri, 24 Jul
Air Canada Logo
1:05 p.m. - 9:32 p.m.
STL
-
YYC
9h 27m
1 stop
Air Canada Logo
9:20 a.m. - 8:09 p.m.
YYC
-
STL
9h 49m
2 stops
C$ 670Air Canada
Tue, 5 May - Sat, 9 May

Air Canada flights from St. Louis to Calgary

Our best Air Canada deals on St. Louis to Calgary flight tickets
Air Canada
8 May
STL7:05 a.m.Lambert-St Louis
12h 26m
2 stops
YYC6:31 p.m.Calgary
15 May
YYC6:05 p.m.Calgary
17h 01m
1 stop
STL12:06 p.m.Lambert-St Louis
C$ 583
Air Canada
8 May
STL7:05 a.m.Lambert-St Louis
16h 53m
1 stop
YYC10:58 p.m.Calgary
14 May
YYC12:55 a.m.Calgary
10h 11m
1 stop
STL12:06 p.m.Lambert-St Louis
C$ 621
Air Canada
5 May
STL1:05 p.m.Lambert-St Louis
9h 27m
1 stop
YYC9:32 p.m.Calgary
9 May
YYC10:30 a.m.Calgary
8h 39m
1 stop
STL8:09 p.m.Lambert-St Louis
C$ 633

American Airlines flights from St. Louis to Calgary

Our best American Airlines deals on St. Louis to Calgary flight tickets
American Airlines
5 Apr
STL6:00 a.m.Lambert-St Louis
7h 50m
1 stop
YYC12:50 p.m.Calgary
13 Apr
YYC12:45 p.m.Calgary
19h 09m
1 stop
STL8:54 a.m.Lambert-St Louis
C$ 637
American Airlines
8 Apr
STL12:27 p.m.Lambert-St Louis
10h 17m
1 stop
YYC9:44 p.m.Calgary
11 Apr
YYC6:45 a.m.Calgary
9h 36m
1 stop
STL5:21 p.m.Lambert-St Louis
C$ 702
American Airlines
3 Jul
STL6:00 a.m.Lambert-St Louis
18h 40m
1 stop
YYC11:40 p.m.Calgary
7 Jul
YYC6:15 a.m.Calgary
13h 14m
1 stop
STL8:29 p.m.Lambert-St Louis
C$ 727

momondo 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, momondo users made 96,600 searches. Data last updated 26 March 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

Price

Cheapest round-trip

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 8/5

7:05 a.m.-6:31 p.m.

2 stops12h 26m

Calgary

Fri 15/5

6:05 p.m.-12:06 p.m.

1 stop17h 01m

C$ 583

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 8/5

7:05 a.m.-10:58 p.m.

1 stop16h 53m

Calgary

Thu 14/5

12:55 a.m.-12:06 p.m.

1 stop10h 11m

C$ 621

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 5/5

1:05 p.m.-9:32 p.m.

1 stop9h 27m

Calgary

Sat 9/5

10:30 a.m.-8:09 p.m.

1 stop8h 39m

C$ 633
Quickest round-trip

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 15/9

1:36 p.m.-6:30 p.m.

1 stop5h 54m

Calgary

Wed 23/9

6:00 a.m.-12:40 p.m.

1 stop5h 40m

C$ 637

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 5/5

1:05 p.m.-9:32 p.m.

1 stop9h 27m

Calgary

Sat 9/5

9:20 a.m.-8:09 p.m.

2 stops9h 49m

C$ 641

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 15/9

12:10 p.m.-11:06 p.m.

2 stops11h 56m

Calgary

Wed 23/9

2:00 p.m.-12:36 a.m.

1 stop9h 36m

C$ 651

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 15/9

12:10 p.m.-11:06 p.m.

2 stops11h 56m

Calgary

Wed 23/9

7:15 a.m.-11:01 p.m.

2 stops14h 46m

C$ 658

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 8/5

7:05 a.m.-6:31 p.m.

2 stops12h 26m

Calgary

Fri 15/5

8:30 p.m.-12:06 p.m.

2 stops14h 36m

C$ 665

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 13/7

5:33 p.m.-10:40 p.m.

1 stop6h 07m

Calgary

Fri 24/7

8:30 a.m.-3:46 p.m.

1 stop6h 16m

C$ 667

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 5/5

1:05 p.m.-9:32 p.m.

1 stop9h 27m

Calgary

Sat 9/5

9:20 a.m.-8:09 p.m.

2 stops9h 49m

C$ 670

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Calgary from

How to get the cheapest flight ticket from St. Louis to Calgary

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Calgary?

What is the cheapest month to fly to Calgary?

The cheapest month to fly to Calgary from St. Louis is in November. Flight prices, which tend to average around C$ 456, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Calgary from St. Louis during April instead. Flights to Calgary in April, while not as cheap as those in November, still average around C$ 695.

How far in advance should I book a flight to Calgary?

You are more likely to see cheaper flights to Calgary from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around C$ 799 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Calgary from St. Louis for as low as C$ 667 on momondo.

Can stopping save me money on St. Louis to Calgary flights?

You could potentially save up to 35% on your flight if you consider stops on a St. Louis to Calgary flight.

How have St. Louis to Calgary flight prices changed over time?

As of March 2026, prices for St. Louis to Calgary flights are approximately 46% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Calgary

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Calgary according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Calgary (STL to YYC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Calgary

Fastest flight time

5h 59m

Direct flights

Sat

Airports in Calgary

1 airport
The fastest flight from St. Louis to Calgary takes 5h 59m
Direct flights go from St. Louis to Calgary on Saturday. There are no airlines offering direct flights.
There is 1 airport in Calgary. From St. Louis there are direct flights to Calgary (YYC).
Search flight deals

  • How far is Lambert-St Louis to Calgary by plane?

    There are 2315.6 km between Lambert-St Louis and Calgary. In terms of flight time, this usually takes a little over 5h 59m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Calgary Airport?

    Prices for flights from Lambert-St Louis Airport to Calgary Airport are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Calgary Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Calgary Airport.

  • What documentation or ID do you need to fly to Calgary Airport?

    The necessary travel and health documents for your Calgary Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Calgary?

Book flights to Calgary if you plan to visit one of these locations
Banff
Canmore
Lake Louise
Radium Hot Springs
Kananaskis
Drumheller
Airdrie

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Calgary?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Calgary . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Calgary with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Calgary flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Calgary?

momondo provides multiple filters to help you find the best flight to Calgary from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Calgary right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Calgary, momondo offers a useful price alert feature which will track prices for flights to Calgary from St. Louis and alert you when they change.

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