What is the cheapest airline that flies from Lambert-St Louis to Calgary?

WestJet is the most popular carrier operating from Lambert-St Louis to Calgary

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.

C$ 189 Cheap Flights from St. Louis to Calgary in 2025/26

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Calgary

Round-trip

One-way

Last minute

Cheap round-trip flights

4:12 p.m. - 12:34 p.m.STL-YYC

21h 22m1 stop

1:29 p.m. - 8:09 a.m.YYC-STL

17h 40m1 stop

C$ 466American Airlines

Find Deal

Wed, 15 Oct - Sun, 19 Oct

4:34 p.m. - 12:34 p.m.STL-YYC

21h 00m1 stop

1:29 p.m. - 11:54 p.m.YYC-STL

9h 25m1 stop

C$ 481American Airlines

Find Deal

Mon, 20 Oct - Mon, 27 Oct

7:45 p.m. - 11:14 a.m.STL-YYC

16h 29m2 stops

8:55 a.m. - 10:12 a.m.YYC-STL

24h 17m1 stop

C$ 485Multiple Airlines

Find Deal

Wed, 5 Nov - Wed, 12 Nov

7:45 p.m. - 11:14 a.m.STL-YYC

16h 29m2 stops

7:35 p.m. - 11:24 a.m.YYC-STL

14h 49m1 stop

C$ 490Multiple Airlines

Find Deal

Thu, 6 Nov - Thu, 13 Nov

6:30 a.m. - 9:53 p.m.STL-YYC

16h 23m2 stops

12:37 p.m. - 3:49 p.m.YYC-STL

26h 12m1 stop

C$ 547United Airlines

Find Deal

Tue, 4 Nov - Tue, 11 Nov

6:33 a.m. - 10:44 a.m.STL-YYC

29h 11m1 stop

7:00 p.m. - 3:18 p.m.YYC-STL

19h 18m1 stop

C$ 587Alaska Airlines

Find Deal

Thu, 23 Oct - Fri, 31 Oct

6:30 a.m. - 9:53 p.m.STL-YYC

16h 23m2 stops

2:13 p.m. - 3:46 p.m.YYC-STL

24h 33m2 stops

C$ 636United Airlines

Find Deal

Wed, 5 Nov - Wed, 12 Nov

9:10 a.m. - 8:47 p.m.STL-YYC

12h 37m2 stops

2:59 p.m. - 11:06 p.m.YYC-STL

7h 07m1 stop

C$ 771Delta

Find Deal

Thu, 23 Oct - Fri, 31 Oct

7:00 a.m. - 6:17 p.m.STL-YYC

12h 17m1 stop

6:55 p.m. - 1:52 p.m.YYC-STL

17h 57m1 stop

C$ 813Alaska Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

9:10 a.m. - 6:40 p.m.STL-YYC

10h 30m2 stops

12:05 p.m. - 12:24 a.m.YYC-STL

11h 19m2 stops

C$ 821Delta

Find Deal

Thu, 9 Oct - Wed, 15 Oct

American Airlines flights from St. Louis to Calgary

Our best American Airlines deals on St. Louis to Calgary flight tickets

American Airlines

15 Oct

STL4:12 p.m.Lambert-St Louis

21h 22m

1 stop

YYC12:34 p.m.Calgary

19 Oct

YYC1:29 p.m.Calgary

17h 40m

1 stop

STL8:09 a.m.Lambert-St Louis

C$ 466

Find similar

American Airlines

20 Oct

STL4:34 p.m.Lambert-St Louis

21h 00m

1 stop

YYC12:34 p.m.Calgary

27 Oct

YYC1:29 p.m.Calgary

9h 25m

1 stop

STL11:54 p.m.Lambert-St Louis

C$ 481

Find similar

American Airlines

20 Oct

STL4:34 p.m.Lambert-St Louis

21h 00m

1 stop

YYC12:34 p.m.Calgary

27 Oct

YYC6:45 a.m.Calgary

16h 09m

2 stops

STL11:54 p.m.Lambert-St Louis

C$ 488

Find similar

United Airlines flights from St. Louis to Calgary

Our best United Airlines deals on St. Louis to Calgary flight tickets

United Airlines

4 Nov

STL6:30 a.m.Lambert-St Louis

16h 23m

2 stops

YYC9:53 p.m.Calgary

11 Nov

YYC12:37 p.m.Calgary

26h 12m

1 stop

STL3:49 p.m.Lambert-St Louis

C$ 547

Find similar

United Airlines

5 Nov

STL6:30 a.m.Lambert-St Louis

16h 23m

2 stops

YYC9:53 p.m.Calgary

12 Nov

YYC2:13 p.m.Calgary

24h 33m

2 stops

STL3:46 p.m.Lambert-St Louis

C$ 636

Find similar

United Airlines

4 Nov

STL6:30 a.m.Lambert-St Louis

16h 23m

2 stops

YYC9:53 p.m.Calgary

11 Nov

YYC2:13 p.m.Calgary

24h 36m

2 stops

STL3:49 p.m.Lambert-St Louis

C$ 652

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 15/10

4:12 p.m.-12:34 p.m.

1 stop21h 22m

Calgary

Sun 19/10

1:29 p.m.-8:09 a.m.

1 stop17h 40m

C$ 466

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 20/10

4:34 p.m.-12:34 p.m.

1 stop21h 00m

Calgary

Mon 27/10

1:29 p.m.-11:54 p.m.

1 stop9h 25m

C$ 481

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 5/11

7:45 p.m.-11:14 a.m.

2 stops16h 29m

Calgary

Wed 12/11

8:55 a.m.-10:12 a.m.

1 stop24h 17m

C$ 485

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 6/11

7:45 p.m.-11:14 a.m.

2 stops16h 29m

Calgary

Thu 13/11

7:35 p.m.-11:24 a.m.

1 stop14h 49m

C$ 490

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 4/11

6:30 a.m.-9:53 p.m.

2 stops16h 23m

Calgary

Tue 11/11

12:37 p.m.-3:49 p.m.

1 stop26h 12m

C$ 547

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 23/10

6:33 a.m.-10:44 a.m.

1 stop29h 11m

Calgary

Fri 31/10

7:00 p.m.-3:18 p.m.

1 stop19h 18m

C$ 587

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 5/11

6:30 a.m.-9:53 p.m.

2 stops16h 23m

Calgary

Wed 12/11

2:13 p.m.-3:46 p.m.

2 stops24h 33m

C$ 636

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 23/10

9:10 a.m.-8:47 p.m.

2 stops12h 37m

Calgary

Fri 31/10

2:59 p.m.-11:06 p.m.

1 stop7h 07m

C$ 771

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 10/3

7:00 a.m.-6:17 p.m.

1 stop12h 17m

Calgary

Wed 11/3

6:55 p.m.-1:52 p.m.

1 stop17h 57m

C$ 813

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 9/10

9:10 a.m.-6:40 p.m.

2 stops10h 30m

Calgary

Wed 15/10

12:05 p.m.-12:24 a.m.

2 stops11h 19m

C$ 821

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Calgary?

The cheapest month to fly to Calgary from St. Louis is in January. Flight prices, which tend to average around C$ 497, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Calgary from St. Louis during April instead. Flights to Calgary in April, while not as cheap as those in January, still average around C$ 610.

What is the cheapest day to depart on your flight to Calgary?

The cheapest day to depart on your flight to Calgary is on a Thursday when prices can be found for as low as C$ 298. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 962.

What is the cheapest time of day to depart on your flight to Calgary?

Our data shows that the cheapest St. Louis to Calgary flights are usually those with departure times at noon. Our users have found flights to Calgary at noon for as low as C$ 489. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 797 on average. Flights to Calgary from St. Louis in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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$ 762 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$ 544 on momondo.

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

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

Direct flights	None

There are no direct flights from St. Louis to Calgary. There are no popular flight routes from St. Louis to Calgary.

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 6h 21m.
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.

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.