Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Calgary from $161

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
6:44 pm - 1:05 pmSTL  Lambert-St Louis-YYC Calgary
18h 21m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
1:25 am - 4:40 pmYYC  Calgary-STL Lambert-St Louis
15h 15m1 stop Atlanta Hartsfield-Jackson
$312Multiple Airlines
Mon, Nov 9 - Thu, Nov 12
Multiple Airlines Logo
2:29 pm - 11:00 amSTL  Lambert-St Louis-YYC Calgary
21h 31m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
9:00 pm - 1:10 pmYYC  Calgary-STL Lambert-St Louis
15h 10m2 stops Vancouver Intl Atlanta Hartsfield-Jackson
$326Multiple Airlines
Fri, Oct 2 - Tue, Oct 6
Air Canada Logo
4:05 pm - 11:06 pmSTL  Lambert-St Louis-YYC Calgary
8h 01m1 stop Toronto Pearson Intl
Air Canada Logo
7:00 am - 2:26 pmYYC  Calgary-STL Lambert-St Louis
7h 26m1 stop Toronto Pearson Intl
$443Air Canada
Tue, Oct 27 - Tue, Nov 3
Air Canada Logo
12:10 pm - 9:27 pmSTL  Lambert-St Louis-YYC Calgary
10h 17m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
7:40 pm - 2:00 pmYYC  Calgary-STL Lambert-St Louis
17h 20m1 stop Toronto Pearson Intl
$457Air Canada
Sat, Sep 26 - Sun, Oct 11
American Airlines Logo
6:00 am - 3:00 pmSTL  Lambert-St Louis-YYC Calgary
9h 00m1 stop Chicago O'Hare Intl
American Airlines Logo
2:40 pm - 12:28 pmYYC  Calgary-STL Lambert-St Louis
21h 48m1 stop Chicago O'Hare Intl
$461American Airlines
Fri, Jan 15 - Mon, Jan 18
United Airlines Logo
9:13 am - 4:24 pmSTL  Lambert-St Louis-YYC Calgary
7h 11m1 stop Denver Intl
United Airlines Logo
1:37 pm - 8:47 pmYYC  Calgary-STL Lambert-St Louis
7h 10m1 stop Chicago O'Hare Intl
$488United Airlines
Sat, Jan 23 - Thu, Jan 28
American Airlines Logo
5:00 am - 12:51 pmSTL  Lambert-St Louis-YYC Calgary
8h 51m1 stop Chicago O'Hare Intl
American Airlines Logo
1:51 pm - 12:35 pmYYC  Calgary-STL Lambert-St Louis
21h 44m1 stop Chicago O'Hare Intl
$490American Airlines
Wed, Oct 7 - Wed, Oct 14
Delta Logo
2:15 pm - 11:13 pmSTL  Lambert-St Louis-YYC Calgary
9h 58m1 stop Salt Lake City
Delta Logo
7:15 am - 5:56 pmYYC  Calgary-STL Lambert-St Louis
9h 41m1 stop Salt Lake City
$492Delta
Mon, Mar 15 - Sun, Mar 21
United Airlines Logo
8:50 am - 4:21 pmSTL  Lambert-St Louis-YYC Calgary
7h 31m1 stop Denver Intl
United Airlines Logo
3:06 pm - 10:39 pmYYC  Calgary-STL Lambert-St Louis
7h 33m1 stop Denver Intl
$496United Airlines
Sun, Nov 22 - Sat, Nov 28
Delta Logo
2:28 pm - 1:21 amSTL  Lambert-St Louis-YYC Calgary
10h 53m1 stop Salt Lake City
Delta Logo
8:45 am - 3:30 pmYYC  Calgary-STL Lambert-St Louis
6h 45m1 stop Minneapolis St Paul
$511Delta
Wed, Dec 9 - Sun, Dec 13

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

American Airlines flights from St. Louis to Calgary

Our best American Airlines deals on St. Louis to Calgary flight tickets
American Airlines
Jan 15
STL6:00 amLambert-St Louis
9h 00m
1 stop
YYC3:00 pmCalgary
Jan 18
YYC2:40 pmCalgary
21h 48m
1 stop
STL12:28 pmLambert-St Louis
$461
American Airlines
Oct 7
STL5:00 amLambert-St Louis
8h 51m
1 stop
YYC12:51 pmCalgary
Oct 14
YYC1:51 pmCalgary
21h 44m
1 stop
STL12:35 pmLambert-St Louis
$490
American Airlines
Nov 24
STL7:26 amLambert-St Louis
16h 21m
2 stops
YYC11:47 pmCalgary
Nov 27
YYC1:25 pmCalgary
7h 34m
1 stop
STL8:59 pmLambert-St Louis
$524

Delta flights from St. Louis to Calgary

Our best Delta deals on St. Louis to Calgary flight tickets
Delta
Nov 24
STL2:20 pmLambert-St Louis
10h 57m
1 stop
YYC1:17 amCalgary
Nov 27
YYC2:25 pmCalgary
4h 06m
1 stop
STL6:31 pmLambert-St Louis
$511
Delta
Sep 30
STL6:15 amLambert-St Louis
7h 45m
1 stop
YYC1:00 pmCalgary
Oct 5
YYC12:33 pmCalgary
11h 11m
1 stop
STL12:44 amLambert-St Louis
$513
Delta
Sep 30
STL6:15 amLambert-St Louis
7h 45m
1 stop
YYC1:00 pmCalgary
Oct 4
YYC12:33 pmCalgary
11h 11m
1 stop
STL12:44 amLambert-St Louis
$514

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 11/9

6:44 pm-1:05 pm

1 stop18h 21m

Calgary

Thu 11/12

1:25 am-4:40 pm

1 stop15h 15m

$312

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 10/2

2:29 pm-11:00 am

1 stop21h 31m

Calgary

Tue 10/6

9:00 pm-1:10 pm

2 stops15h 10m

$326

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Tue 10/27

4:05 pm-11:06 pm

1 stop8h 01m

Calgary

Tue 11/3

7:00 am-2:26 pm

1 stop7h 26m

$443

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Sat 9/26

12:10 pm-9:27 pm

1 stop10h 17m

Calgary

Sun 10/11

7:40 pm-2:00 pm

1 stop17h 20m

$457

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 1/15

6:00 am-3:00 pm

1 stop9h 00m

Calgary

Mon 1/18

2:40 pm-12:28 pm

1 stop21h 48m

$461
Quickest round-trip

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Sat 1/23

9:13 am-4:24 pm

1 stop7h 11m

Calgary

Thu 1/28

1:37 pm-8:47 pm

1 stop7h 10m

$488

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 10/7

5:00 am-12:51 pm

1 stop8h 51m

Calgary

Wed 10/14

1:51 pm-12:35 pm

1 stop21h 44m

$490

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Mon 3/15

2:15 pm-11:13 pm

1 stop9h 58m

Calgary

Sun 3/21

7:15 am-5:56 pm

1 stop9h 41m

$492

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Sun 11/22

8:50 am-4:21 pm

1 stop7h 31m

Calgary

Sat 11/28

3:06 pm-10:39 pm

1 stop7h 33m

$496

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 12/9

2:28 pm-1:21 am

1 stop10h 53m

Calgary

Sun 12/13

8:45 am-3:30 pm

1 stop6h 45m

$511

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?

Prices are currently low for flights on this route.

Typical prices usually range from $576 to $805.
The lowest price recently found on this route was $312.

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 $483. 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 $559.

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 $674 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 $571 on momondo.

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

$161

Fastest flight time

5h 50m

Direct flights

None
The best one-way flight to Calgary from St. Louis in the past 72 hours is $161. The best round-trip flight deal from St. Louis to Calgary found on momondo in the last 72 hours is $312.
The fastest flight from St. Louis to Calgary takes 5h 50m
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?

    Calgary is 1438.9 mi away from Lambert-St Louis. Flights usually cover this in 5h 50m, 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 $252Free CancellationRating
7.1
11,630 reviews
Search Air Canada flights
DeltaPriceFrom $267Free CancellationRating
7.8
8,568 reviews
Search Delta flights
WestJetPriceFrom $434Free CancellationRating
7.2
3,443 reviews
Search WestJet flights
United AirlinesPriceFrom $483Free CancellationRating
7.4
10,208 reviews
Search United Airlines flights
American AirlinesPriceFrom $557Free CancellationRating
7.1
12,056 reviews
Search American Airlines flights

  • United Airlines Flights From St. Louis to Calgary

    United Airlines flies from St. Louis to Calgary around 7 times per week, with 10,208 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from St. Louis to Calgary in the last 72 hours was $483 (round-trip), much lower than the average airfare cost of $725 for United Airlines flights on this route.

Traveling to a place near Calgary?

Book flights to Calgary if you plan to visit one of these locations
Banff
Canmore
Lake Louise
Airdrie
Drumheller
Radium Hot Springs
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
Thu 10/15
Thu 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada