Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Calgary from $180

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 3/4. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? 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.
Multiple Airlines Logo
11:21 am - 7:09 pm
STL
-
YYC
8h 48m
1 stop
Multiple Airlines Logo
8:15 pm - 10:30 am
YYC
-
STL
13h 15m
2 stops
$327Multiple Airlines
Thu, Apr 9 - Wed, Apr 15
American Airlines Logo
8:03 pm - 12:59 pm
STL
-
YYC
17h 56m
1 stop
American Airlines Logo
1:40 pm - 11:46 pm
YYC
-
STL
9h 06m
1 stop
$335American Airlines
Thu, Apr 9 - Wed, Apr 15
Multiple Airlines Logo
11:21 am - 11:43 am
STL
-
YYC
25h 22m
1 stop
Multiple Airlines Logo
12:30 am - 10:30 am
YYC
-
STL
9h 00m
1 stop
$336Multiple Airlines
Thu, Apr 9 - Sat, Apr 11
Multiple Airlines Logo
11:21 am - 7:09 pm
STL
-
YYC
8h 48m
1 stop
Multiple Airlines Logo
12:30 am - 10:30 am
YYC
-
STL
9h 00m
1 stop
$340Multiple Airlines
Thu, Apr 9 - Sat, Apr 11
Multiple Airlines Logo
12:14 pm - 3:17 pm
STL
-
YYC
28h 03m
1 stop
Multiple Airlines Logo
7:35 pm - 11:19 am
YYC
-
STL
14h 44m
1 stop
$352Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
12:14 pm - 3:17 pm
STL
-
YYC
28h 03m
1 stop
Multiple Airlines Logo
7:35 pm - 11:19 am
YYC
-
STL
14h 44m
1 stop
$353Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
11:21 am - 11:00 am
STL
-
YYC
24h 39m
1 stop
Multiple Airlines Logo
8:45 am - 7:12 pm
YYC
-
STL
9h 27m
1 stop
$360Multiple Airlines
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
12:14 pm - 3:17 pm
STL
-
YYC
28h 03m
1 stop
Multiple Airlines Logo
12:20 pm - 10:32 am
YYC
-
STL
21h 12m
2 stops
$371Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
12:14 pm - 3:17 pm
STL
-
YYC
28h 03m
1 stop
Multiple Airlines Logo
10:35 am - 10:32 am
YYC
-
STL
22h 57m
2 stops
$372Multiple Airlines
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
4:54 pm - 11:43 am
STL
-
YYC
19h 49m
2 stops
Multiple Airlines Logo
12:30 am - 10:30 am
YYC
-
STL
9h 00m
1 stop
$401Multiple Airlines
Thu, Apr 9 - Sat, Apr 11

American Airlines flights from St. Louis to Calgary

Our best American Airlines deals on St. Louis to Calgary flight tickets
American Airlines
Apr 9
STL8:03 pmLambert-St Louis
17h 56m
1 stop
YYC12:59 pmCalgary
Apr 15
YYC1:40 pmCalgary
9h 06m
1 stop
STL11:46 pmLambert-St Louis
$335
American Airlines
Apr 2
STL6:00 amLambert-St Louis
7h 50m
1 stop
YYC12:50 pmCalgary
Apr 6
YYC1:30 pmCalgary
21h 15m
1 stop
STL11:45 amLambert-St Louis
$420
American Airlines
Apr 9
STL5:46 amLambert-St Louis
10h 46m
2 stops
YYC3:32 pmCalgary
Apr 15
YYC6:45 amCalgary
14h 32m
2 stops
STL10:17 pmLambert-St Louis
$548

Delta flights from St. Louis to Calgary

Our best Delta deals on St. Louis to Calgary flight tickets
Delta
Mar 23
STL1:39 pmLambert-St Louis
10h 23m
2 stops
YYC11:02 pmCalgary
Mar 30
YYC6:30 amCalgary
13h 12m
2 stops
STL8:42 pmLambert-St Louis
$546
Delta
Apr 9
STL6:29 amLambert-St Louis
8h 26m
2 stops
YYC1:55 pmCalgary
Apr 12
YYC12:15 pmCalgary
10h 10m
2 stops
STL11:25 pmLambert-St Louis
$617

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 832,500 searches. Data last updated February 7, 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

Thu 4/9

11:21 am-7:09 pm

1 stop8h 48m

Calgary

Wed 4/15

8:15 pm-10:30 am

2 stops13h 15m

$327

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 4/9

8:03 pm-12:59 pm

1 stop17h 56m

Calgary

Wed 4/15

1:40 pm-11:46 pm

1 stop9h 06m

$335

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 4/9

11:21 am-11:43 am

1 stop25h 22m

Calgary

Sat 4/11

12:30 am-10:30 am

1 stop9h 00m

$336

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 4/9

11:21 am-7:09 pm

1 stop8h 48m

Calgary

Sat 4/11

12:30 am-10:30 am

1 stop9h 00m

$340

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 3/23

12:14 pm-3:17 pm

1 stop28h 03m

Calgary

Mon 3/30

7:35 pm-11:19 am

1 stop14h 44m

$352

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 3/23

12:14 pm-3:17 pm

1 stop28h 03m

Calgary

Mon 3/30

7:35 pm-11:19 am

1 stop14h 44m

$353

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 5/14

11:21 am-11:00 am

1 stop24h 39m

Calgary

Mon 5/18

8:45 am-7:12 pm

1 stop9h 27m

$360

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 3/23

12:14 pm-3:17 pm

1 stop28h 03m

Calgary

Mon 3/30

12:20 pm-10:32 am

2 stops21h 12m

$371

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 3/23

12:14 pm-3:17 pm

1 stop28h 03m

Calgary

Mon 3/30

10:35 am-10:32 am

2 stops22h 57m

$372

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 4/9

4:54 pm-11:43 am

2 stops19h 49m

Calgary

Sat 4/11

12:30 am-10:30 am

1 stop9h 00m

$401

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 month of November is, on average, the cheapest month to fly to Calgary from St. Louis, with most prices found around $331. 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 $398.

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 $556 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 $465 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 08m

Direct flights

None
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

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

    Calgary is 1438.9 mi away from Lambert-St Louis. Flights usually cover this in 6h 08m, depending on flying conditions and air traffic around both airports.

  • 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 many operators does momondo search for flights from Lambert-St Louis Airport to Calgary Airport?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Calgary Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Calgary Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from St. Louis to Calgary?

Best airlines flying from St. Louis to Calgary

Compare and see reviews for airlines that fly from St. Louis to Calgary with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $178Free CancellationRating
7.1
10,697 reviews
Search Air Canada flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,162 reviews
Search Delta flights
United AirlinesPriceFrom $291Free CancellationRating
7.4
9,245 reviews
Search United Airlines flights
American AirlinesPriceFrom $398Free CancellationRating
7.2
11,248 reviews
Search American Airlines flights
WestJetPriceFrom $490Free CancellationRating
7.2
3,255 reviews
Search WestJet flights

Traveling 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
Drumheller
Kananaskis

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Calgary. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Calgary from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Calgary.

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

Yes momondo offers price alerts on flights to Calgary from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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 3/9
Mon 3/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada