Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to Calgary from C$ 246

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 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Calgary

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:25 p.m. - 12:50 p.m.
STL
-
YYC
23h 25m
1 stop
American Airlines Logo
1:40 p.m. - 11:46 p.m.
YYC
-
STL
9h 06m
1 stop
C$ 395American Airlines
Sat, 4 Apr - Sat, 11 Apr
American Airlines Logo
2:25 p.m. - 12:50 p.m.
STL
-
YYC
23h 25m
1 stop
American Airlines Logo
6:45 a.m. - 11:46 p.m.
YYC
-
STL
16h 01m
2 stops
C$ 409American Airlines
Sat, 4 Apr - Sat, 11 Apr
Multiple Airlines Logo
11:21 a.m. - 7:09 p.m.
STL
-
YYC
8h 48m
1 stop
Multiple Airlines Logo
8:15 p.m. - 10:30 a.m.
YYC
-
STL
13h 15m
2 stops
C$ 447Multiple Airlines
Thu, 9 Apr - Wed, 15 Apr
American Airlines Logo
8:03 p.m. - 12:59 p.m.
STL
-
YYC
17h 56m
1 stop
American Airlines Logo
1:40 p.m. - 11:46 p.m.
YYC
-
STL
9h 06m
1 stop
C$ 458American Airlines
Thu, 9 Apr - Wed, 15 Apr
Multiple Airlines Logo
11:21 a.m. - 11:43 a.m.
STL
-
YYC
25h 22m
1 stop
Multiple Airlines Logo
12:30 a.m. - 10:30 a.m.
YYC
-
STL
9h 00m
1 stop
C$ 459Multiple Airlines
Thu, 9 Apr - Sat, 11 Apr
Multiple Airlines Logo
11:21 a.m. - 7:09 p.m.
STL
-
YYC
8h 48m
1 stop
Multiple Airlines Logo
12:30 a.m. - 10:30 a.m.
YYC
-
STL
9h 00m
1 stop
C$ 465Multiple Airlines
Thu, 9 Apr - Sat, 11 Apr
Multiple Airlines Logo
12:14 p.m. - 3:17 p.m.
STL
-
YYC
28h 03m
1 stop
Multiple Airlines Logo
7:35 p.m. - 11:19 a.m.
YYC
-
STL
14h 44m
1 stop
C$ 481Multiple Airlines
Mon, 23 Mar - Mon, 30 Mar
Multiple Airlines Logo
12:14 p.m. - 3:17 p.m.
STL
-
YYC
28h 03m
1 stop
Multiple Airlines Logo
7:35 p.m. - 11:19 a.m.
YYC
-
STL
14h 44m
1 stop
C$ 483Multiple Airlines
Mon, 23 Mar - Mon, 30 Mar
Multiple Airlines Logo
11:21 a.m. - 11:00 a.m.
STL
-
YYC
24h 39m
1 stop
Multiple Airlines Logo
8:45 a.m. - 7:12 p.m.
YYC
-
STL
9h 27m
1 stop
C$ 492Multiple Airlines
Thu, 14 May - Mon, 18 May
Multiple Airlines Logo
12:14 p.m. - 3:17 p.m.
STL
-
YYC
28h 03m
1 stop
Multiple Airlines Logo
12:20 p.m. - 10:32 a.m.
YYC
-
STL
21h 12m
2 stops
C$ 507Multiple Airlines
Mon, 23 Mar - Mon, 30 Mar

American Airlines flights from St. Louis to Calgary

Our best American Airlines deals on St. Louis to Calgary flight tickets
American Airlines
9 Apr
STL8:03 p.m.Lambert-St Louis
17h 56m
1 stop
YYC12:59 p.m.Calgary
15 Apr
YYC1:40 p.m.Calgary
9h 06m
1 stop
STL11:46 p.m.Lambert-St Louis
C$ 458
American Airlines
2 Apr
STL6:00 a.m.Lambert-St Louis
7h 50m
1 stop
YYC12:50 p.m.Calgary
6 Apr
YYC1:30 p.m.Calgary
21h 15m
1 stop
STL11:45 a.m.Lambert-St Louis
C$ 574
American Airlines
9 Apr
STL5:46 a.m.Lambert-St Louis
10h 46m
2 stops
YYC3:32 p.m.Calgary
15 Apr
YYC6:45 a.m.Calgary
14h 32m
2 stops
STL10:17 p.m.Lambert-St Louis
C$ 749

Delta flights from St. Louis to Calgary

Our best Delta deals on St. Louis to Calgary flight tickets
Delta
23 Mar
STL1:39 p.m.Lambert-St Louis
10h 23m
2 stops
YYC11:02 p.m.Calgary
30 Mar
YYC6:30 a.m.Calgary
13h 12m
2 stops
STL8:42 p.m.Lambert-St Louis
C$ 747
Delta
9 Apr
STL6:29 a.m.Lambert-St Louis
13h 43m
2 stops
YYC7:12 p.m.Calgary
12 Apr
YYC12:15 p.m.Calgary
10h 10m
2 stops
STL11:25 p.m.Lambert-St Louis
C$ 844

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 7 February 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

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 4/4

2:25 p.m.-12:50 p.m.

1 stop23h 25m

Calgary

Sat 11/4

1:40 p.m.-11:46 p.m.

1 stop9h 06m

C$ 395

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 4/4

2:25 p.m.-12:50 p.m.

1 stop23h 25m

Calgary

Sat 11/4

6:45 a.m.-11:46 p.m.

2 stops16h 01m

C$ 409

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 9/4

11:21 a.m.-7:09 p.m.

1 stop8h 48m

Calgary

Wed 15/4

8:15 p.m.-10:30 a.m.

2 stops13h 15m

C$ 447

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 9/4

8:03 p.m.-12:59 p.m.

1 stop17h 56m

Calgary

Wed 15/4

1:40 p.m.-11:46 p.m.

1 stop9h 06m

C$ 458

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 9/4

11:21 a.m.-11:43 a.m.

1 stop25h 22m

Calgary

Sat 11/4

12:30 a.m.-10:30 a.m.

1 stop9h 00m

C$ 459

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 9/4

11:21 a.m.-7:09 p.m.

1 stop8h 48m

Calgary

Sat 11/4

12:30 a.m.-10:30 a.m.

1 stop9h 00m

C$ 465

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 23/3

12:14 p.m.-3:17 p.m.

1 stop28h 03m

Calgary

Mon 30/3

7:35 p.m.-11:19 a.m.

1 stop14h 44m

C$ 481

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 23/3

12:14 p.m.-3:17 p.m.

1 stop28h 03m

Calgary

Mon 30/3

7:35 p.m.-11:19 a.m.

1 stop14h 44m

C$ 483

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 14/5

11:21 a.m.-11:00 a.m.

1 stop24h 39m

Calgary

Mon 18/5

8:45 a.m.-7:12 p.m.

1 stop9h 27m

C$ 492

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 23/3

12:14 p.m.-3:17 p.m.

1 stop28h 03m

Calgary

Mon 30/3

12:20 p.m.-10:32 a.m.

2 stops21h 12m

C$ 507

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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$ 453, 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$ 544.

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$ 761 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$ 636 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

Fastest flight time

6h 36m

Direct flights

None
The fastest flight from St. Louis to Calgary takes 6h 36m
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 36m.

  • 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.

An easier way to manage your Calgary trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 9/3
Mon 16/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada