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Cheap flights from St. Louis to Calgary from C$ 225

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Calgary

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:29 p.m. - 3:15 p.m.STL  Lambert-St Louis-YYC Calgary
25h 46m2 stops Atlanta Hartsfield-Jackson Vancouver Intl
Multiple Airlines Logo
7:00 a.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
29h 10m1 stop Atlanta Hartsfield-Jackson
C$ 416Multiple Airlines
Wed, 30 Sep - Tue, 6 Oct
Multiple Airlines Logo
2:29 p.m. - 3:15 p.m.STL  Lambert-St Louis-YYC Calgary
25h 46m2 stops Atlanta Hartsfield-Jackson Vancouver Intl
Multiple Airlines Logo
12:20 a.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
11h 50m1 stop Atlanta Hartsfield-Jackson
C$ 417Multiple Airlines
Wed, 30 Sep - Sun, 4 Oct
Multiple Airlines Logo
2:29 p.m. - 3:15 p.m.STL  Lambert-St Louis-YYC Calgary
25h 46m2 stops Atlanta Hartsfield-Jackson Vancouver Intl
Multiple Airlines Logo
12:20 a.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
11h 50m1 stop Atlanta Hartsfield-Jackson
C$ 423Multiple Airlines
Wed, 30 Sep - Sun, 4 Oct
Multiple Airlines Logo
2:29 p.m. - 11:00 a.m.STL  Lambert-St Louis-YYC Calgary
21h 31m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
9:00 p.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
15h 10m2 stops Vancouver Intl Atlanta Hartsfield-Jackson
C$ 445Multiple Airlines
Fri, 2 Oct - Tue, 6 Oct
Multiple Airlines Logo
8:10 p.m. - 2:45 p.m.STL  Lambert-St Louis-YYC Calgary
19h 35m1 stop Denver Intl
Multiple Airlines Logo
7:00 a.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
29h 10m1 stop Atlanta Hartsfield-Jackson
C$ 448Multiple Airlines
Wed, 30 Sep - Tue, 6 Oct
Multiple Airlines Logo
6:35 p.m. - 11:00 a.m.STL  Lambert-St Louis-YYC Calgary
17h 25m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
12:25 a.m. - 5:40 p.m.YYC  Calgary-STL Lambert-St Louis
16h 15m1 stop Atlanta Hartsfield-Jackson
C$ 448Multiple Airlines
Wed, 21 Oct - Tue, 27 Oct
Multiple Airlines Logo
6:35 p.m. - 11:00 a.m.STL  Lambert-St Louis-YYC Calgary
17h 25m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
12:25 a.m. - 5:40 p.m.YYC  Calgary-STL Lambert-St Louis
16h 15m1 stop Atlanta Hartsfield-Jackson
C$ 449Multiple Airlines
Fri, 23 Oct - Thu, 29 Oct
Multiple Airlines Logo
2:29 p.m. - 11:00 a.m.STL  Lambert-St Louis-YYC Calgary
21h 31m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
7:00 a.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
29h 10m1 stop Atlanta Hartsfield-Jackson
C$ 449Multiple Airlines
Fri, 2 Oct - Tue, 6 Oct
Multiple Airlines Logo
8:10 p.m. - 2:45 p.m.STL  Lambert-St Louis-YYC Calgary
19h 35m1 stop Denver Intl
Multiple Airlines Logo
12:20 a.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
11h 50m1 stop Atlanta Hartsfield-Jackson
C$ 450Multiple Airlines
Wed, 30 Sep - Sun, 4 Oct
Multiple Airlines Logo
8:10 p.m. - 2:45 p.m.STL  Lambert-St Louis-YYC Calgary
19h 35m1 stop Denver Intl
Multiple Airlines Logo
12:20 a.m. - 1:10 p.m.YYC  Calgary-STL Lambert-St Louis
11h 50m1 stop Atlanta Hartsfield-Jackson
C$ 456Multiple Airlines
Wed, 30 Sep - Sun, 4 Oct

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Air Canada flights from St. Louis to Calgary

Our best Air Canada deals on St. Louis to Calgary flight tickets
Air Canada
22 Nov
STL4:05 p.m.Lambert-St Louis
9h 01m
1 stop
YYC1:06 a.m.Calgary
28 Nov
YYC7:00 a.m.Calgary
7h 26m
1 stop
STL2:26 p.m.Lambert-St Louis
C$ 600
Air Canada
30 Sep
STL12:10 p.m.Lambert-St Louis
10h 17m
1 stop
YYC9:27 p.m.Calgary
5 Oct
YYC7:40 p.m.Calgary
17h 20m
1 stop
STL2:00 p.m.Lambert-St Louis
C$ 626
Air Canada
22 Sep
STL12:10 p.m.Lambert-St Louis
10h 17m
1 stop
YYC9:27 p.m.Calgary
30 Sep
YYC11:55 p.m.Calgary
13h 05m
1 stop
STL2:00 p.m.Lambert-St Louis
C$ 683

United Airlines flights from St. Louis to Calgary

Our best United Airlines deals on St. Louis to Calgary flight tickets
United Airlines
22 Sep
STL1:36 p.m.Lambert-St Louis
5h 54m
1 stop
YYC6:30 p.m.Calgary
26 Sep
YYC6:00 a.m.Calgary
16h 44m
1 stop
STL11:44 p.m.Lambert-St Louis
C$ 710
United Airlines
20 Sep
STL5:30 p.m.Lambert-St Louis
6h 05m
1 stop
YYC10:35 p.m.Calgary
30 Sep
YYC12:30 p.m.Calgary
7h 51m
1 stop
STL9:21 p.m.Lambert-St Louis
C$ 808

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Calgary that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 30/9

2:29 p.m.-3:15 p.m.

2 stops25h 46m

Calgary

Tue 6/10

7:00 a.m.-1:10 p.m.

1 stop29h 10m

C$ 416

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 30/9

2:29 p.m.-3:15 p.m.

2 stops25h 46m

Calgary

Sun 4/10

12:20 a.m.-1:10 p.m.

1 stop11h 50m

C$ 417

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 30/9

2:29 p.m.-3:15 p.m.

2 stops25h 46m

Calgary

Sun 4/10

12:20 a.m.-1:10 p.m.

1 stop11h 50m

C$ 423

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 2/10

2:29 p.m.-11:00 a.m.

1 stop21h 31m

Calgary

Tue 6/10

9:00 p.m.-1:10 p.m.

2 stops15h 10m

C$ 445

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 30/9

8:10 p.m.-2:45 p.m.

1 stop19h 35m

Calgary

Tue 6/10

7:00 a.m.-1:10 p.m.

1 stop29h 10m

C$ 448

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 21/10

6:35 p.m.-11:00 a.m.

1 stop17h 25m

Calgary

Tue 27/10

12:25 a.m.-5:40 p.m.

1 stop16h 15m

C$ 448

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 23/10

6:35 p.m.-11:00 a.m.

1 stop17h 25m

Calgary

Thu 29/10

12:25 a.m.-5:40 p.m.

1 stop16h 15m

C$ 449

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 2/10

2:29 p.m.-11:00 a.m.

1 stop21h 31m

Calgary

Tue 6/10

7:00 a.m.-1:10 p.m.

1 stop29h 10m

C$ 449
Quickest round-trip

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 30/9

8:10 p.m.-2:45 p.m.

1 stop19h 35m

Calgary

Sun 4/10

12:20 a.m.-1:10 p.m.

1 stop11h 50m

C$ 450

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 30/9

8:10 p.m.-2:45 p.m.

1 stop19h 35m

Calgary

Sun 4/10

12:20 a.m.-1:10 p.m.

1 stop11h 50m

C$ 456

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?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 796 to C$ 1,112.
The lowest price recently found on this route was C$ 416.

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$ 667, 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$ 772.

How far in advance should I book a flight from St. Louis 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$ 931 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$ 789 on momondo.

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

You could potentially save up to 43% 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 September 2026, prices for St. Louis to Calgary flights are approximately 35% 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

Best price found

C$ 225

Fastest flight time

7h 37m

Direct flights

None
The best one-way flight to Calgary from St. Louis in the past 72 hours is C$ 225. The best round-trip flight deal from St. Louis to Calgary found on momondo in the last 72 hours is C$ 416.
The fastest flight from St. Louis to Calgary takes 7h 37m
There are no direct flights from St. Louis to Calgary. There are no popular flight routes from St. Louis to Calgary.
Search flight deals

Frequently asked questions about flying from St. Louis to Calgary

  • 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 7h 37m.

  • 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
Airdrie
Kananaskis
Drumheller

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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