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 42% 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 5h 45m on average. On the other hand, flying from Edmonton to St. Louis takes 11h 31m 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?

Air Canada, United Airlines, and WestJet are the most popular carriers 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$ 334 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.

7:35 p.m. - 5:46 p.m.

YYC

STL

21h 11m

1 stop

5:18 p.m. - 3:09 p.m.

STL

YYC

22h 51m

2 stops

C$ 478Multiple Airlines

Fri, 27 Feb - Wed, 4 Mar

3:35 p.m. - 8:07 p.m.

YYC

STL

27h 32m

1 stop

5:18 p.m. - 3:09 p.m.

STL

YYC

22h 51m

2 stops

C$ 513Multiple Airlines

Thu, 26 Feb - Wed, 4 Mar

7:35 p.m. - 9:26 p.m.

YYC

STL

24h 51m

1 stop

5:18 p.m. - 3:09 p.m.

STL

YYC

22h 51m

2 stops

C$ 517Multiple Airlines

Wed, 25 Feb - Wed, 4 Mar

1:35 p.m. - 11:48 p.m.

YYC

STL

9h 13m

1 stop

9:17 a.m. - 11:42 p.m.

STL

YYC

15h 25m

1 stop

C$ 529American Airlines

Sat, 16 May - Sat, 23 May

8:55 a.m. - 6:51 a.m.

YYC

STL

20h 56m

1 stop

5:18 p.m. - 3:09 p.m.

STL

YYC

22h 51m

2 stops

C$ 533Multiple Airlines

Tue, 24 Feb - Wed, 4 Mar

7:35 p.m. - 8:02 p.m.

YYC

STL

23h 27m

1 stop

5:18 p.m. - 3:09 p.m.

STL

YYC

22h 51m

2 stops

C$ 544Multiple Airlines

Sun, 22 Feb - Wed, 4 Mar

1:30 p.m. - 11:44 p.m.

YYC

STL

9h 14m

1 stop

6:00 a.m. - 12:54 p.m.

STL

YYC

7h 54m

1 stop

C$ 565American Airlines

Wed, 1 Apr - Tue, 7 Apr

12:07 p.m. - 11:59 p.m.

YEG

STL

10h 52m

1 stop

7:00 a.m. - 11:17 a.m.

STL

YEG

29h 17m

1 stop

C$ 673Alaska Airlines

Tue, 31 Mar - Thu, 9 Apr

8:00 a.m. - 8:31 p.m.

YEG

STL

11h 31m

2 stops

6:30 a.m. - 4:55 p.m.

STL

YEG

11h 25m

1 stop

C$ 730WestJet

Fri, 15 May - Sun, 31 May

6:30 a.m. - 8:43 p.m.

YEG

STL

13h 13m

2 stops

6:29 a.m. - 2:08 p.m.

STL

YEG

8h 39m

2 stops

C$ 735WestJet

Tue, 31 Mar - Thu, 9 Apr

Air Canada flights from Alberta to St. Louis

Our best Air Canada deals on Alberta to St. Louis flight tickets

Air Canada

16 Mar

YYC11:40 p.m.Calgary

14h 49m

1 stop

STL3:29 p.m.Lambert-St Louis

18 Mar

STL4:05 p.m.Lambert-St Louis

8h 54m

1 stop

YYC11:59 p.m.Calgary

C$ 610

Air Canada

28 Feb

YYC5:30 a.m.Calgary

14h 35m

2 stops

STL9:05 p.m.Lambert-St Louis

4 Mar

STL7:41 a.m.Lambert-St Louis

12h 13m

2 stops

YYC6:54 p.m.Calgary

C$ 679

Air Canada

6 Feb

YEG6:00 a.m.Edmonton

8h 29m

1 stop

STL3:29 p.m.Lambert-St Louis

8 Feb

STL4:05 p.m.Lambert-St Louis

8h 13m

1 stop

YEG11:18 p.m.Edmonton

C$ 909

American Airlines flights from Alberta to St. Louis

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

American Airlines

16 May

YYC1:35 p.m.Calgary

9h 13m

1 stop

STL11:48 p.m.Lambert-St Louis

23 May

STL9:17 a.m.Lambert-St Louis

15h 25m

1 stop

YYC11:42 p.m.Calgary

C$ 529

American Airlines

1 Apr

YYC1:30 p.m.Calgary

9h 14m

1 stop

STL11:44 p.m.Lambert-St Louis

7 Apr

STL6:00 a.m.Lambert-St Louis

7h 54m

1 stop

YYC12:54 p.m.Calgary

C$ 565

American Airlines

25 Feb

YYC1:40 p.m.Calgary

9h 08m

1 stop

STL11:48 p.m.Lambert-St Louis

4 Mar

STL5:12 a.m.Lambert-St Louis

7h 32m

1 stop

YYC11:44 a.m.Calgary

C$ 574

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 27/2

7:35 p.m.-5:46 p.m.

1 stop21h 11m

Lambert-St Louis

Wed 4/3

5:18 p.m.-3:09 p.m.

2 stops22h 51m

C$ 478

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 26/2

3:35 p.m.-8:07 p.m.

1 stop27h 32m

Lambert-St Louis

Wed 4/3

5:18 p.m.-3:09 p.m.

2 stops22h 51m

C$ 513

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 25/2

7:35 p.m.-9:26 p.m.

1 stop24h 51m

Lambert-St Louis

Wed 4/3

5:18 p.m.-3:09 p.m.

2 stops22h 51m

C$ 517

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 16/5

1:35 p.m.-11:48 p.m.

1 stop9h 13m

Lambert-St Louis

Sat 23/5

9:17 a.m.-11:42 p.m.

1 stop15h 25m

C$ 529

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 24/2

8:55 a.m.-6:51 a.m.

1 stop20h 56m

Lambert-St Louis

Wed 4/3

5:18 p.m.-3:09 p.m.

2 stops22h 51m

C$ 533

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sun 22/2

7:35 p.m.-8:02 p.m.

1 stop23h 27m

Lambert-St Louis

Wed 4/3

5:18 p.m.-3:09 p.m.

2 stops22h 51m

C$ 544

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 1/4

1:30 p.m.-11:44 p.m.

1 stop9h 14m

Lambert-St Louis

Tue 7/4

6:00 a.m.-12:54 p.m.

1 stop7h 54m

C$ 565

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 31/3

12:07 p.m.-11:59 p.m.

1 stop10h 52m

Lambert-St Louis

Thu 9/4

7:00 a.m.-11:17 a.m.

1 stop29h 17m

C$ 673

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 15/5

8:00 a.m.-8:31 p.m.

2 stops11h 31m

Lambert-St Louis

Sun 31/5

6:30 a.m.-4:55 p.m.

1 stop11h 25m

C$ 730

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 31/3

6:30 a.m.-8:43 p.m.

2 stops13h 13m

Lambert-St Louis

Thu 9/4

6:29 a.m.-2:08 p.m.

2 stops8h 39m

C$ 735

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 February is, on average, the cheapest month to fly to St. Louis from Alberta, with most prices found around C$ 565. 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$ 569.

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	5h 45m
Direct flights	None

The fastest flight from Alberta to St. Louis takes 5h 45m

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$ 357	Free Cancellation	Rating 7.1 10,664 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 440	Free Cancellation	Rating 7.4 9,205 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 563	Free Cancellation	Rating 7.2 3,250 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.