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Cheap flights from St. Louis to Calgary from C$ 255

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
7:54 p.m. - 12:15 p.m.STL  Lambert-St Louis-YYC Calgary
16h 21m2 stops Denver Intl Los Angeles
Multiple Airlines Logo
1:25 a.m. - 11:17 a.m.YYC  Calgary-STL Lambert-St Louis
9h 52m1 stop Atlanta Hartsfield-Jackson
C$ 643Multiple Airlines
Mon, 7 Dec - Sun, 13 Dec
Multiple Airlines Logo
6:35 p.m. - 12:05 p.m.STL  Lambert-St Louis-YYC Calgary
17h 30m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
8:00 p.m. - 11:06 a.m.YYC  Calgary-STL Lambert-St Louis
39h 06m2 stops Phoenix Sky Harbor Intl Denver Intl
C$ 703Multiple Airlines
Mon, 23 Nov - Mon, 30 Nov
Multiple Airlines Logo
7:54 p.m. - 12:44 a.m.STL  Lambert-St Louis-YYC Calgary
28h 50m3 stops Denver Intl Phoenix Sky Harbor Intl Vancouver Intl
Multiple Airlines Logo
1:25 a.m. - 11:17 a.m.YYC  Calgary-STL Lambert-St Louis
9h 52m1 stop Atlanta Hartsfield-Jackson
C$ 716Multiple Airlines
Mon, 7 Dec - Sun, 13 Dec
Multiple Airlines Logo
6:35 p.m. - 12:05 p.m.STL  Lambert-St Louis-YYC Calgary
17h 30m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
8:00 p.m. - 11:06 a.m.YYC  Calgary-STL Lambert-St Louis
39h 06m2 stops Phoenix Sky Harbor Intl Denver Intl
C$ 719Multiple Airlines
Mon, 23 Nov - Mon, 30 Nov
Multiple Airlines Logo
2:27 p.m. - 12:15 p.m.STL  Lambert-St Louis-YYC Calgary
45h 48m2 stops Las Vegas Harry Reid Intl Los Angeles
Multiple Airlines Logo
8:45 a.m. - 11:17 a.m.YYC  Calgary-STL Lambert-St Louis
26h 32m1 stop Atlanta Hartsfield-Jackson
C$ 721Multiple Airlines
Sun, 6 Dec - Sun, 13 Dec
Multiple Airlines Logo
12:02 p.m. - 12:05 p.m.STL  Lambert-St Louis-YYC Calgary
24h 03m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
8:00 p.m. - 3:26 p.m.YYC  Calgary-STL Lambert-St Louis
19h 26m2 stops Phoenix Sky Harbor Intl Denver Intl
C$ 752Multiple Airlines
Fri, 11 Dec - Sun, 3 Jan
Multiple Airlines Logo
6:04 a.m. - 12:44 a.m.STL  Lambert-St Louis-YYC Calgary
18h 40m2 stops Seattle/Tacoma Intl Vancouver Intl
Multiple Airlines Logo
8:45 a.m. - 11:17 a.m.YYC  Calgary-STL Lambert-St Louis
26h 32m1 stop Atlanta Hartsfield-Jackson
C$ 754Multiple Airlines
Tue, 8 Dec - Tue, 15 Dec
Multiple Airlines Logo
6:04 a.m. - 12:44 a.m.STL  Lambert-St Louis-YYC Calgary
18h 40m2 stops Seattle/Tacoma Intl Vancouver Intl
Multiple Airlines Logo
8:45 a.m. - 11:17 a.m.YYC  Calgary-STL Lambert-St Louis
26h 32m1 stop Atlanta Hartsfield-Jackson
C$ 756Multiple Airlines
Tue, 8 Dec - Tue, 15 Dec
Multiple Airlines Logo
12:02 p.m. - 12:05 p.m.STL  Lambert-St Louis-YYC Calgary
24h 03m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
8:00 p.m. - 3:26 p.m.YYC  Calgary-STL Lambert-St Louis
19h 26m2 stops Phoenix Sky Harbor Intl Denver Intl
C$ 758Multiple Airlines
Fri, 11 Dec - Sun, 3 Jan
Air Canada Logo
4:05 p.m. - 12:06 a.m.STL  Lambert-St Louis-YYC Calgary
8h 01m1 stop Toronto Pearson Intl
Air Canada Logo
7:00 a.m. - 3:26 p.m.YYC  Calgary-STL Lambert-St Louis
8h 26m1 stop Toronto Pearson Intl
C$ 759Air Canada
Sun, 22 Nov - Sat, 28 Nov

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United Airlines flights from St. Louis to Calgary

Our best United Airlines deals on St. Louis to Calgary flight tickets
United Airlines
9 Dec
STL8:40 a.m.Lambert-St Louis
14h 13m
1 stop
YYC10:53 p.m.Calgary
13 Dec
YYC1:37 p.m.Calgary
5h 49m
1 stop
STL7:26 p.m.Lambert-St Louis
C$ 765
United Airlines
9 Mar
STL5:00 a.m.Lambert-St Louis
8h 00m
1 stop
YYC1:00 p.m.Calgary
9 Mar
YYC3:06 p.m.Calgary
6h 46m
1 stop
STL9:52 p.m.Lambert-St Louis
C$ 789
United Airlines
20 Jan
STL8:52 a.m.Lambert-St Louis
6h 29m
1 stop
YYC3:21 p.m.Calgary
28 Jan
YYC7:00 a.m.Calgary
7h 03m
1 stop
STL2:03 p.m.Lambert-St Louis
C$ 819

Air Canada flights from St. Louis to Calgary

Our best Air Canada deals on St. Louis to Calgary flight tickets
Air Canada
24 Nov
STL4:05 p.m.Lambert-St Louis
8h 01m
1 stop
YYC12:06 a.m.Calgary
27 Nov
YYC7:00 a.m.Calgary
8h 26m
1 stop
STL3:26 p.m.Lambert-St Louis
C$ 766
Air Canada
22 Nov
STL4:05 p.m.Lambert-St Louis
8h 01m
1 stop
YYC12:06 a.m.Calgary
28 Nov
YYC7:00 a.m.Calgary
8h 26m
1 stop
STL3:26 p.m.Lambert-St Louis
C$ 840
Air Canada
22 Nov
STL4:05 p.m.Lambert-St Louis
8h 01m
1 stop
YYC12:06 a.m.Calgary
28 Nov
YYC7:00 a.m.Calgary
8h 26m
1 stop
STL3:26 p.m.Lambert-St Louis
C$ 853

momondo Fare Finder

 
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 Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Mon 7/12

7:54 p.m.-12:15 p.m.

2 stops16h 21m

Calgary

Sun 13/12

1:25 a.m.-11:17 a.m.

1 stop9h 52m

C$ 643

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Mon 23/11

6:35 p.m.-12:05 p.m.

1 stop17h 30m

Calgary

Mon 30/11

8:00 p.m.-11:06 a.m.

2 stops39h 06m

C$ 703

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Mon 7/12

7:54 p.m.-12:44 a.m.

3 stops28h 50m

Calgary

Sun 13/12

1:25 a.m.-11:17 a.m.

1 stop9h 52m

C$ 716

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Mon 23/11

6:35 p.m.-12:05 p.m.

1 stop17h 30m

Calgary

Mon 30/11

8:00 p.m.-11:06 a.m.

2 stops39h 06m

C$ 718

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Sun 6/12

2:27 p.m.-12:15 p.m.

2 stops45h 48m

Calgary

Sun 13/12

8:45 a.m.-11:17 a.m.

1 stop26h 32m

C$ 721

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 11/12

12:02 p.m.-12:05 p.m.

1 stop24h 03m

Calgary

Sun 3/1

8:00 p.m.-3:26 p.m.

2 stops19h 26m

C$ 752

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Tue 8/12

6:04 a.m.-12:44 a.m.

2 stops18h 40m

Calgary

Tue 15/12

8:45 a.m.-11:17 a.m.

1 stop26h 32m

C$ 754

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Tue 8/12

6:04 a.m.-12:44 a.m.

2 stops18h 40m

Calgary

Tue 15/12

8:45 a.m.-11:17 a.m.

1 stop26h 32m

C$ 756

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 11/12

12:02 p.m.-12:05 p.m.

1 stop24h 03m

Calgary

Sun 3/1

8:00 p.m.-3:26 p.m.

2 stops19h 26m

C$ 758
Quickest round-trip

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Sun 22/11

4:05 p.m.-12:06 a.m.

1 stop8h 01m

Calgary

Sat 28/11

7:00 a.m.-3:26 p.m.

1 stop8h 26m

C$ 759

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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$ 877 to C$ 1,017.
The lowest price recently found on this route was C$ 643.

What is the cheapest month to fly to Calgary?

The cheapest month to fly to Calgary from St. Louis is in April. Flight prices, which tend to average around C$ 727, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Calgary from St. Louis during November instead. Flights to Calgary in November, while not as cheap as those in April, still average around C$ 849.

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$ 967 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$ 800 on momondo.

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

You could potentially save up to 6% 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 October 2026, prices for St. Louis to Calgary flights are approximately 54% 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$ 255

Fastest flight time

6h 08m

Direct flights

None
The best one-way flight to Calgary from St. Louis in the past 72 hours is C$ 255. The best round-trip flight deal from St. Louis to Calgary found on momondo in the last 72 hours is C$ 643.
The fastest flight from St. Louis to Calgary takes 6h 08m
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 6h 08m.

  • 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
Airdrie
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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