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Cheap flights from St. Louis to Calgary from $150

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 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Calgary

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Calgary that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Calgary.

Cheap last minute flights

Planning a quick getaway from St. Louis to Calgary? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Calgary, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Calgary

Find recent round-trip train or bus tickets from St. Louis to Calgary.

All round-trip flight deals from St. Louis to Calgary

The cheapest plane tickets from St. Louis to Calgary found on KAYAK recently.
4:00 pm - 10:55 pmSTL-YYC
31h 55m3 stops
12:20 am - 4:42 pmYYC-STL
15h 22m2 stops
Tue, Mar 4 - Mon, Mar 10
2:13 pm - 11:15 pmSTL-YYC
10h 02m1 stop
6:35 am - 2:50 pmYYC-STL
7h 15m1 stop
$387Delta
Find Deal
Thu, Feb 20 - Thu, Feb 27
8:20 am - 2:21 pmSTL-YYC
7h 01m1 stop
2:09 pm - 8:34 pmYYC-STL
5h 25m1 stop
$398United Airlines
Find Deal
Tue, Mar 4 - Tue, Mar 11
3:50 pm - 11:17 pmSTL-YYC
8h 27m1 stop
12:05 am - 3:06 pmYYC-STL
14h 01m1 stop
$407Air Canada
Find Deal
Mon, Feb 17 - Fri, Feb 21
8:20 am - 2:21 pmSTL-YYC
7h 01m1 stop
12:50 am - 3:06 pmYYC-STL
13h 16m1 stop
$417Air Canada
Find Deal
Tue, Mar 18 - Tue, Mar 25
6:00 am - 8:42 pmSTL-YYC
15h 42m1 stop
6:30 am - 4:52 pmYYC-STL
9h 22m1 stop
$422WestJet
Find Deal
Thu, Mar 13 - Tue, Mar 25
5:37 pm - 11:50 amSTL-YYC
19h 13m1 stop
6:29 am - 4:33 pmYYC-STL
9h 04m1 stop
$424American Airlines
Find Deal
Mon, Feb 17 - Sat, Feb 22
6:00 am - 7:05 pmSTL-YYC
14h 05m2 stops
12:30 am - 9:14 amYYC-STL
7h 44m1 stop
$427WestJet
Find Deal
Thu, Mar 13 - Mon, Mar 24
5:37 pm - 11:50 amSTL-YYC
19h 13m1 stop
6:29 am - 4:33 pmYYC-STL
9h 04m1 stop
$460American Airlines
Find Deal
Tue, Feb 18 - Sun, Feb 23
6:15 am - 9:48 pmSTL-YYC
16h 33m2 stops
8:23 am - 10:03 pmYYC-STL
12h 40m1 stop
$564United Airlines
Find Deal
Wed, May 14 - Mon, May 19
6:51 pm - 4:45 pmSTL-YYC
22h 54m2 stops
Mon, Apr 28
6:51 pm - 4:45 pmSTL-YYC
22h 54m2 stops
Mon, Apr 28
6:55 pm - 2:45 pmSTL-YYC
20h 50m1 stop
Wed, Jun 18
8:20 am - 9:41 pmSTL-YYC
14h 21m1 stop
$174United Airlines
Find Deal
Tue, Mar 11
5:27 pm - 11:45 amSTL-YYC
19h 18m1 stop
$182American Airlines
Find Deal
Mon, Apr 28
5:27 pm - 11:45 amSTL-YYC
19h 18m1 stop
$183American Airlines
Find Deal
Mon, Apr 28
3:30 pm - 6:16 pmSTL-YYC
27h 46m2 stops
$205United Airlines
Find Deal
Tue, Mar 11
6:00 am - 6:58 pmSTL-YYC
13h 58m2 stops
$207WestJet
Find Deal
Sun, Apr 27
6:00 am - 6:40 pmSTL-YYC
13h 40m2 stops
$208WestJet
Find Deal
Sun, Apr 27
2:15 pm - 11:07 pmSTL-YYC
9h 52m1 stop
$254Delta
Find Deal
Sun, Apr 27
3:35 pm - 8:53 pmSTL-YYC
6h 18m1 stop
7:10 am - 2:43 pmYYC-STL
30h 33m2 stops
Sat, Jan 25 - Mon, Jan 27
8:50 am - 9:01 pmSTL-YYC
13h 11m2 stops
9:45 pm - 9:22 amYYC-STL
10h 37m2 stops
$631WestJet
Find Deal
Sat, Jan 25 - Mon, Jan 27
8:50 am - 9:01 pmSTL-YYC
13h 11m2 stops
12:20 am - 4:53 pmYYC-STL
15h 33m2 stops
$643WestJet
Find Deal
Sat, Jan 25 - Sun, Jan 26
1:00 pm - 10:55 pmSTL-YYC
34h 55m3 stops
4:35 pm - 2:43 pmYYC-STL
21h 08m2 stops
Sat, Jan 25 - Mon, Jan 27
6:30 am - 11:39 amSTL-YYC
6h 09m1 stop
6:15 am - 3:06 pmYYC-STL
7h 51m1 stop
Sat, Jan 25 - Mon, Jan 27
6:30 am - 11:39 amSTL-YYC
6h 09m1 stop
12:05 am - 3:06 pmYYC-STL
14h 01m1 stop
Sat, Jan 25 - Sun, Jan 26
1:00 pm - 10:55 pmSTL-YYC
34h 55m3 stops
4:35 pm - 2:43 pmYYC-STL
21h 08m3 stops
Sat, Jan 25 - Mon, Jan 27

WestJet flights from St. Louis to Calgary

Our best WestJet deals on St. Louis to Calgary flight tickets
WestJet
Mar 13
STL6:00 amLambert-St Louis
15h 42m
1 stop
YYC8:42 pmCalgary
Mar 25
YYC6:30 amCalgary
9h 22m
1 stop
STL4:52 pmLambert-St Louis
WestJet
Mar 13
STL6:00 amLambert-St Louis
14h 05m
2 stops
YYC7:05 pmCalgary
Mar 24
YYC12:30 amCalgary
7h 44m
1 stop
STL9:14 amLambert-St Louis
WestJet
Mar 13
STL6:00 amLambert-St Louis
14h 05m
2 stops
YYC7:05 pmCalgary
Mar 25
YYC7:00 amCalgary
8h 52m
2 stops
STL4:52 pmLambert-St Louis

Delta flights from St. Louis to Calgary

Our best Delta deals on St. Louis to Calgary flight tickets
Delta
Feb 20
STL2:13 pmLambert-St Louis
10h 02m
1 stop
YYC11:15 pmCalgary
Feb 27
YYC6:35 amCalgary
7h 15m
1 stop
STL2:50 pmLambert-St Louis
Delta
Feb 20
STL2:13 pmLambert-St Louis
10h 02m
1 stop
YYC11:15 pmCalgary
Feb 27
YYC8:00 amCalgary
13h 17m
2 stops
STL10:17 pmLambert-St Louis
Delta
Mar 4
STL10:22 amLambert-St Louis
13h 53m
2 stops
YYC11:15 pmCalgary
Mar 10
YYC7:40 amCalgary
9h 53m
1 stop
STL6:33 pmLambert-St Louis

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 cheapest month to fly to Calgary?

The month of January is, on average, the cheapest month to fly to Calgary from St. Louis, with most prices found around $361. If you aren’t able to travel during the month of January, then book flights to Calgary from St. Louis during February instead. Flights to Calgary in February, while not as cheap as those in January, still average around $501.

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 Tuesday when prices can be found for as low as $456. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Calgary on a Sunday will generally be more expensive and average around $617. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Calgary is at noon when flights can be purchased for as low as $499. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $628 on average. Flights to Calgary from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ 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 5 weeks ahead of your departure date. In general, you can expect to find flights to Calgary for around $551 when searching 5 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 $386 on momondo.

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

As of January 2025, prices for St. Louis to Calgary flights are approximately 46% cheaper 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

$150

Fastest flight time

6h 02m

Direct flights

None

Airports in Calgary

1 airport
The best one-way flight to Calgary from St. Louis in the past 72 hours is $150. The best round-trip flight deal from St. Louis to Calgary found on momondo in the last 72 hours is $356.
The fastest flight from St. Louis to Calgary takes 6h 02m
There are no direct flights from St. Louis to Calgary. Popular non-direct route for this connection is Lambert-St Louis Airport - Calgary Airport.
There is 1 airport near Calgary: Calgary (YYC)

  • 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 02m, 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 $189Free CancellationRating
7.0
8,635 reviews
Search Air Canada flights
DeltaPriceFrom $328Free CancellationRating
8.0
8,512 reviews
Search Delta flights
United AirlinesPriceFrom $353Free CancellationRating
7.4
8,975 reviews
Search United Airlines flights
American AirlinesPriceFrom $377Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
WestJetPriceFrom $398Free CancellationRating
7.2
2,829 reviews
Search WestJet flights

Traveling to a place near Calgary?

Book flights to Calgary if you plan to visit one of these locations
Banff
Lake Louise
Canmore
Radium Hot Springs
Drumheller
Airdrie
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.


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