How long does it take to fly to St. Louis?

Flight times vary depending on what airport in Alberta you fly out of and what airport in St. Louis you fly into. For example, flying from Calgary to St. Louis takes 8h 10m on average. On the other hand, flying from Edmonton to St. Louis takes 13h 18m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

Which airlines fly to St. Louis?

Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to St. Louis from Alberta according to our data. Air Canada is the first choice among our users, with 48% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Alberta to Lambert-St Louis Airport?

Prices for flights from Alberta to Lambert-St Louis Airport refresh daily.

How many operators does momondo search for flights from Alberta to Lambert-St Louis Airport?

As of November 2025, there are 3 operators available to choose from for flights from Alberta to Lambert-St Louis Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Alberta to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The required travel and health documents for your Lambert-St Louis 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 Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 205 Cheap Flights from Alberta to St. Louis in 2025/26

1 adult

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Find the cheapest flights from Alberta to St. Louis

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:45 p.m. - 6:51 a.m.YYC-STL

32h 06m2 stops

8:32 p.m. - 7:09 p.m.STL-YYC

23h 37m1 stop

C$ 294Multiple Airlines

Find Deal

Mon, 12 Jan - Mon, 19 Jan

3:00 p.m. - 12:40 p.m.YYC-STL

20h 40m2 stops

8:22 p.m. - 7:09 p.m.STL-YYC

23h 47m1 stop

C$ 375Multiple Airlines

Find Deal

Sat, 17 Jan - Wed, 21 Jan

7:35 p.m. - 12:40 p.m.YYC-STL

16h 05m1 stop

8:22 p.m. - 7:09 p.m.STL-YYC

23h 47m1 stop

C$ 381Multiple Airlines

Find Deal

Sat, 17 Jan - Wed, 21 Jan

8:25 a.m. - 9:48 p.m.YYC-STL

12h 23m1 stop

10:47 a.m. - 11:44 a.m.STL-YYC

25h 57m1 stop

C$ 396Multiple Airlines

Find Deal

Fri, 12 Dec - Mon, 15 Dec

1:25 p.m. - 1:54 p.m.YYC-STL

23h 29m1 stop

8:32 p.m. - 7:09 p.m.STL-YYC

23h 37m1 stop

C$ 430Multiple Airlines

Find Deal

Mon, 12 Jan - Mon, 19 Jan

1:41 p.m. - 3:35 p.m.YYC-STL

24h 54m1 stop

2:26 p.m. - 1:01 p.m.STL-YYC

23h 35m1 stop

C$ 507American Airlines

Find Deal

Mon, 23 Feb - Sat, 28 Feb

6:30 a.m. - 8:37 p.m.YYC-STL

13h 07m2 stops

3:31 p.m. - 8:54 p.m.STL-YYC

6h 23m1 stop

C$ 536Delta

Find Deal

Mon, 19 Jan - Wed, 21 Jan

1:40 p.m. - 10:20 a.m.YYC-STL

19h 40m1 stop

7:15 a.m. - 9:58 p.m.STL-YYC

15h 43m1 stop

C$ 560American Airlines

Find Deal

Mon, 19 Jan - Wed, 21 Jan

6:00 a.m. - 3:29 p.m.YEG-STL

8h 29m1 stop

4:05 p.m. - 11:18 p.m.STL-YEG

8h 13m1 stop

C$ 653Air Canada

Find Deal

Fri, 23 Jan - Tue, 27 Jan

6:00 a.m. - 3:29 p.m.YEG-STL

8h 29m1 stop

4:05 p.m. - 11:18 p.m.STL-YEG

8h 13m1 stop

C$ 654Air Canada

Find Deal

Fri, 23 Jan - Tue, 27 Jan

American Airlines flights from Alberta to St. Louis

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

American Airlines

23 Feb

YYC1:41 p.m.Calgary

24h 54m

1 stop

STL3:35 p.m.Lambert-St Louis

28 Feb

STL2:26 p.m.Lambert-St Louis

23h 35m

1 stop

YYC1:01 p.m.Calgary

C$ 507

Find similar

American Airlines

19 Jan

YYC1:40 p.m.Calgary

19h 40m

1 stop

STL10:20 a.m.Lambert-St Louis

21 Jan

STL7:15 a.m.Lambert-St Louis

15h 43m

1 stop

YYC9:58 p.m.Calgary

C$ 560

Find similar

American Airlines

18 Dec

YYC6:30 a.m.Calgary

9h 40m

1 stop

STL5:10 p.m.Lambert-St Louis

4 Jan

STL6:44 p.m.Lambert-St Louis

17h 56m

1 stop

YYC11:40 a.m.Calgary

C$ 581

Find similar

Delta flights from Alberta to St. Louis

Our best Delta deals on Alberta to St. Louis flight tickets

Delta

19 Jan

YYC6:30 a.m.Calgary

13h 07m

2 stops

STL8:37 p.m.Lambert-St Louis

21 Jan

STL3:31 p.m.Lambert-St Louis

6h 23m

1 stop

YYC8:54 p.m.Calgary

C$ 536

Find similar

Delta

9 Dec

YYC7:35 a.m.Calgary

10h 35m

1 stop

STL7:10 p.m.Lambert-St Louis

11 Dec

STL12:49 p.m.Lambert-St Louis

9h 08m

1 stop

YYC8:57 p.m.Calgary

C$ 574

Find similar

Delta

9 Dec

YYC6:35 a.m.Calgary

13h 12m

2 stops

STL8:47 p.m.Lambert-St Louis

11 Dec

STL6:15 a.m.Lambert-St Louis

6h 36m

1 stop

YYC11:51 a.m.Calgary

C$ 576

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 12/1

9:45 p.m.-6:51 a.m.

2 stops32h 06m

Lambert-St Louis

Mon 19/1

8:32 p.m.-7:09 p.m.

1 stop23h 37m

C$ 294

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 17/1

3:00 p.m.-12:40 p.m.

2 stops20h 40m

Lambert-St Louis

Wed 21/1

8:22 p.m.-7:09 p.m.

1 stop23h 47m

C$ 375

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 17/1

7:35 p.m.-12:40 p.m.

1 stop16h 05m

Lambert-St Louis

Wed 21/1

8:22 p.m.-7:09 p.m.

1 stop23h 47m

C$ 381

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 12/12

8:25 a.m.-9:48 p.m.

1 stop12h 23m

Lambert-St Louis

Mon 15/12

10:47 a.m.-11:44 a.m.

1 stop25h 57m

C$ 396

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 12/1

1:25 p.m.-1:54 p.m.

1 stop23h 29m

Lambert-St Louis

Mon 19/1

8:32 p.m.-7:09 p.m.

1 stop23h 37m

C$ 430

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 23/2

1:41 p.m.-3:35 p.m.

1 stop24h 54m

Lambert-St Louis

Sat 28/2

2:26 p.m.-1:01 p.m.

1 stop23h 35m

C$ 507

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 19/1

6:30 a.m.-8:37 p.m.

2 stops13h 07m

Lambert-St Louis

Wed 21/1

3:31 p.m.-8:54 p.m.

1 stop6h 23m

C$ 536

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 19/1

1:40 p.m.-10:20 a.m.

1 stop19h 40m

Lambert-St Louis

Wed 21/1

7:15 a.m.-9:58 p.m.

1 stop15h 43m

C$ 560

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 23/1

6:00 a.m.-3:29 p.m.

1 stop8h 29m

Lambert-St Louis

Tue 27/1

4:05 p.m.-11:18 p.m.

1 stop8h 13m

C$ 653

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 23/1

6:00 a.m.-3:29 p.m.

1 stop8h 29m

Lambert-St Louis

Tue 27/1

4:05 p.m.-11:18 p.m.

1 stop8h 13m

C$ 654

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Alberta to St. Louis

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

Other information

What is the cheapest month to fly to St. Louis?

The month of January is, on average, the cheapest month to fly to St. Louis from Alberta, with most prices found around C$ 415. If you don’t want to visit St. Louis in January, then you should wait until February to fly from Alberta, when ticket prices are also cheap, with an average price of C$ 579.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Sunday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 440. The most expensive day to fly to St. Louis is Friday, with ticket prices averaging around C$ 781.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the afternoon when flights can be purchased for as low as C$ 490. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 719 on average. Flights to St. Louis from Alberta in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Cheap Alberta to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Alberta to St. Louis

Fastest flight time	8h 10m
Direct flights	None

The fastest flight from Alberta to St. Louis takes 8h 10m

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

Search flight deals

When did momondo last update prices for flights from Alberta to Lambert-St Louis Airport?
Prices for flights from Alberta to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Alberta to Lambert-St Louis Airport?
As of November 2025, there are 3 operators available to choose from for flights from Alberta to Lambert-St Louis Airport.
How old do you have to be to fly from Alberta to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Alberta to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis 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 Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Alberta to St. Louis

Compare and see reviews for airlines that fly from Alberta to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 341	Free Cancellation	Rating 7.1 10,484 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 450	Free Cancellation	Rating 7.4 9,058 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 577	Free Cancellation	Rating 7.2 3,181 reviews	Search WestJet flights

Chesterfield

Litchfield

Why use momondo?

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

It is quick and easy to find Alberta to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

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

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

Once you have performed a search for Alberta to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Alberta and alert you when they change.