Which airlines fly to St. Louis?

WestJet, Air Canada and United Airlines are the top three most popular airlines that fly to St. Louis from Alberta according to our data. WestJet is the first choice among our users, with 46% 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.

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 7h 08m on average. On the other hand, flying from Edmonton to St. Louis takes 13h 58m 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.

What is the cheapest airline that flies from Alberta to Lambert-St Louis?

United Airlines is the most popular carrier operating from Alberta to Lambert-St Louis

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 January 2026, 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$ 222 Cheap Flights from Alberta to St. Louis in 2026

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.

12:30 a.m. - 10:27 p.m.

YYC

STL

20h 57m

2 stops

11:32 a.m. - 7:09 p.m.

STL

YYC

8h 37m

1 stop

C$ 473Multiple Airlines

Tue, 3 Mar - Wed, 11 Mar

1:25 p.m. - 1:51 p.m.

YYC

STL

23h 26m

1 stop

11:32 a.m. - 7:09 p.m.

STL

YYC

8h 37m

1 stop

C$ 536Multiple Airlines

Wed, 4 Mar - Wed, 11 Mar

1:30 p.m. - 9:29 a.m.

YYC

STL

18h 59m

1 stop

2:29 p.m. - 12:50 p.m.

STL

YYC

23h 21m

1 stop

C$ 568American Airlines

Mon, 16 Mar - Wed, 18 Mar

6:40 a.m. - 5:02 p.m.

YYC

STL

9h 22m

1 stop

2:22 p.m. - 11:00 p.m.

STL

YYC

9h 38m

1 stop

C$ 573Delta

Tue, 14 Apr - Fri, 24 Apr

6:30 a.m. - 2:24 p.m.

YYC

STL

6h 54m

1 stop

12:28 p.m. - 11:02 p.m.

STL

YYC

11h 34m

2 stops

C$ 575Delta

Mon, 16 Mar - Wed, 18 Mar

5:35 a.m. - 3:29 p.m.

YYC

STL

8h 54m

1 stop

4:05 p.m. - 1:14 a.m.

STL

YYC

10h 09m

1 stop

C$ 589Air Canada

Wed, 4 Mar - Sun, 8 Mar

8:35 p.m. - 10:37 a.m.

YEG

STL

13h 02m

2 stops

3:50 p.m. - 11:17 a.m.

STL

YEG

20h 27m

1 stop

C$ 600Multiple Airlines

Tue, 17 Mar - Wed, 1 Apr

6:30 a.m. - 2:38 p.m.

YYC

STL

7h 08m

1 stop

2:38 p.m. - 11:02 p.m.

STL

YYC

9h 24m

1 stop

C$ 616Delta

Sat, 31 Jan - Sun, 8 Feb

12:33 p.m. - 9:40 p.m.

YYC

STL

8h 07m

1 stop

7:41 a.m. - 8:39 p.m.

STL

YYC

13h 58m

2 stops

C$ 659Air Canada

Wed, 4 Mar - Sun, 8 Mar

3:17 p.m. - 11:34 p.m.

YEG

STL

7h 17m

1 stop

8:54 a.m. - 10:04 p.m.

STL

YEG

14h 10m

1 stop

C$ 677United Airlines

Tue, 17 Mar - Wed, 1 Apr

Delta flights from Alberta to St. Louis

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

Delta

14 Apr

YYC6:40 a.m.Calgary

9h 22m

1 stop

STL5:02 p.m.Lambert-St Louis

24 Apr

STL2:22 p.m.Lambert-St Louis

9h 38m

1 stop

YYC11:00 p.m.Calgary

C$ 573

Delta

16 Mar

YYC6:30 a.m.Calgary

6h 54m

1 stop

STL2:24 p.m.Lambert-St Louis

18 Mar

STL12:28 p.m.Lambert-St Louis

11h 34m

2 stops

YYC11:02 p.m.Calgary

C$ 575

Delta

30 Mar

YEG9:15 a.m.Edmonton

28h 09m

1 stop

STL2:24 p.m.Lambert-St Louis

8 Apr

STL6:29 a.m.Lambert-St Louis

10h 26m

1 stop

YEG3:55 p.m.Edmonton

C$ 611

WestJet flights from Alberta to St. Louis

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

WestJet

11 Feb

YYC7:00 a.m.Calgary

15h 25m

2 stops

STL11:25 p.m.Lambert-St Louis

13 Feb

STL6:10 a.m.Lambert-St Louis

14h 02m

2 stops

YYC7:12 p.m.Calgary

C$ 702

WestJet

30 Jan

YYC12:45 a.m.Calgary

15h 46m

2 stops

STL5:31 p.m.Lambert-St Louis

8 Feb

STL6:35 a.m.Lambert-St Louis

10h 23m

2 stops

YYC3:58 p.m.Calgary

C$ 722

WestJet

30 Mar

YEG8:35 p.m.Edmonton

11h 30m

2 stops

STL9:05 a.m.Lambert-St Louis

10 Apr

STL5:25 p.m.Lambert-St Louis

24h 39m

2 stops

YEG5:04 p.m.Edmonton

C$ 757

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 3/3

12:30 a.m.-10:27 p.m.

2 stops20h 57m

Lambert-St Louis

Wed 11/3

11:32 a.m.-7:09 p.m.

1 stop8h 37m

C$ 473

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 4/3

1:25 p.m.-1:51 p.m.

1 stop23h 26m

Lambert-St Louis

Wed 11/3

11:32 a.m.-7:09 p.m.

1 stop8h 37m

C$ 536

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 16/3

1:30 p.m.-9:29 a.m.

1 stop18h 59m

Lambert-St Louis

Wed 18/3

2:29 p.m.-12:50 p.m.

1 stop23h 21m

C$ 568

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 14/4

6:40 a.m.-5:02 p.m.

1 stop9h 22m

Lambert-St Louis

Fri 24/4

2:22 p.m.-11:00 p.m.

1 stop9h 38m

C$ 573

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 16/3

6:30 a.m.-2:24 p.m.

1 stop6h 54m

Lambert-St Louis

Wed 18/3

12:28 p.m.-11:02 p.m.

2 stops11h 34m

C$ 575

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 4/3

5:35 a.m.-3:29 p.m.

1 stop8h 54m

Lambert-St Louis

Sun 8/3

4:05 p.m.-1:14 a.m.

1 stop10h 09m

C$ 589

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 17/3

8:35 p.m.-10:37 a.m.

2 stops13h 02m

Lambert-St Louis

Wed 1/4

3:50 p.m.-11:17 a.m.

1 stop20h 27m

C$ 600

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 31/1

6:30 a.m.-2:38 p.m.

1 stop7h 08m

Lambert-St Louis

Sun 8/2

2:38 p.m.-11:02 p.m.

1 stop9h 24m

C$ 616

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 4/3

12:33 p.m.-9:40 p.m.

1 stop8h 07m

Lambert-St Louis

Sun 8/3

7:41 a.m.-8:39 p.m.

2 stops13h 58m

C$ 659

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 17/3

3:17 p.m.-11:34 p.m.

1 stop7h 17m

Lambert-St Louis

Wed 1/4

8:54 a.m.-10:04 p.m.

1 stop14h 10m

C$ 677

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 February is, on average, the cheapest month to fly to St. Louis from Alberta, with most prices found around C$ 573. If you don’t want to visit St. Louis in February, then you should wait until July to fly from Alberta, when ticket prices are also cheap, with an average price of C$ 577.

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	7h 08m
Direct flights	None

The fastest flight from Alberta to St. Louis takes 7h 08m

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 January 2026, 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$ 420	Free Cancellation	Rating 7.1 10,637 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 446	Free Cancellation	Rating 7.4 9,183 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 572	Free Cancellation	Rating 7.2 3,247 reviews	Search WestJet flights

Chesterfield

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.