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 47% 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 8h 10m on average. On the other hand, flying from Edmonton to St. Louis takes 13h 55m 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.

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 December 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$ 172 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.

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

20h 56m1 stop

2:50 p.m. - 5:15 p.m.STL-YYC

27h 25m2 stops

C$ 473Multiple Airlines

Find Deal

Thu, 15 Jan - Thu, 22 Jan

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

20h 56m1 stop

2:50 p.m. - 5:50 p.m.STL-YYC

28h 00m1 stop

C$ 494Multiple Airlines

Find Deal

Thu, 15 Jan - Thu, 22 Jan

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

19h 40m1 stop

6:44 p.m. - 12:48 p.m.STL-YYC

19h 04m1 stop

C$ 510American Airlines

Find Deal

Tue, 27 Jan - Thu, 29 Jan

12:45 a.m. - 6:51 a.m.YEG-STL

29h 06m1 stop

2:50 p.m. - 4:45 p.m.STL-YEG

26h 55m2 stops

C$ 519Multiple Airlines

Find Deal

Wed, 14 Jan - Thu, 22 Jan

4:30 p.m. - 12:12 p.m.YEG-STL

18h 42m1 stop

7:43 p.m. - 12:11 p.m.STL-YEG

17h 28m2 stops

C$ 538Multiple Airlines

Find Deal

Sun, 11 Jan - Mon, 12 Jan

6:30 a.m. - 3:27 p.m.YYC-STL

7h 57m1 stop

5:16 a.m. - 11:40 a.m.STL-YYC

7h 24m1 stop

C$ 583American Airlines

Find Deal

Wed, 17 Dec - Mon, 5 Jan

6:35 a.m. - 4:45 p.m.YYC-STL

9h 10m1 stop

2:15 p.m. - 11:06 p.m.STL-YYC

9h 51m1 stop

C$ 608Delta

Find Deal

Wed, 22 Apr - Mon, 27 Apr

11:40 p.m. - 3:29 p.m.YYC-STL

14h 49m1 stop

4:05 p.m. - 12:14 a.m.STL-YYC

9h 09m1 stop

C$ 617Air Canada

Find Deal

Mon, 12 Jan - Sat, 31 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$ 656Air Canada

Find Deal

Fri, 23 Jan - Tue, 27 Jan

9:15 a.m. - 4:45 p.m.YEG-STL

6h 30m1 stop

6:10 a.m. - 12:44 a.m.STL-YEG

19h 34m2 stops

C$ 657Delta

Find Deal

Fri, 23 Jan - Tue, 27 Jan

Delta flights from Alberta to St. Louis

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

Delta

22 Apr

YYC6:35 a.m.Calgary

9h 10m

1 stop

STL4:45 p.m.Lambert-St Louis

27 Apr

STL2:15 p.m.Lambert-St Louis

9h 51m

1 stop

YYC11:06 p.m.Calgary

C$ 608

Find similar

Delta

22 Apr

YYC7:15 a.m.Calgary

14h 46m

2 stops

STL11:01 p.m.Lambert-St Louis

27 Apr

STL2:15 p.m.Lambert-St Louis

9h 51m

1 stop

YYC11:06 p.m.Calgary

C$ 647

Find similar

Delta

23 Jan

YEG9:15 a.m.Edmonton

6h 30m

1 stop

STL4:45 p.m.Lambert-St Louis

27 Jan

STL6:10 a.m.Lambert-St Louis

19h 34m

2 stops

YEG12:44 a.m.Edmonton

C$ 657

Find similar

Air Canada flights from Alberta to St. Louis

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

Air Canada

12 Jan

YYC11:40 p.m.Calgary

14h 49m

1 stop

STL3:29 p.m.Lambert-St Louis

31 Jan

STL4:05 p.m.Lambert-St Louis

9h 09m

1 stop

YYC12:14 a.m.Calgary

C$ 617

Find similar

Air Canada

12 Jan

YYC8:45 p.m.Calgary

17h 44m

2 stops

STL3:29 p.m.Lambert-St Louis

31 Jan

STL4:05 p.m.Lambert-St Louis

16h 14m

2 stops

YYC7:19 a.m.Calgary

C$ 646

Find similar

Air Canada

23 Jan

YEG6:00 a.m.Edmonton

8h 29m

1 stop

STL3:29 p.m.Lambert-St Louis

27 Jan

STL4:05 p.m.Lambert-St Louis

8h 13m

1 stop

YEG11:18 p.m.Edmonton

C$ 656

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 15/1

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

1 stop20h 56m

Lambert-St Louis

Thu 22/1

2:50 p.m.-5:15 p.m.

2 stops27h 25m

C$ 473

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 15/1

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

1 stop20h 56m

Lambert-St Louis

Thu 22/1

2:50 p.m.-5:50 p.m.

1 stop28h 00m

C$ 494

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 27/1

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

1 stop19h 40m

Lambert-St Louis

Thu 29/1

6:44 p.m.-12:48 p.m.

1 stop19h 04m

C$ 510

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Wed 14/1

12:45 a.m.-6:51 a.m.

1 stop29h 06m

Lambert-St Louis

Thu 22/1

2:50 p.m.-4:45 p.m.

2 stops26h 55m

C$ 519

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Sun 11/1

4:30 p.m.-12:12 p.m.

1 stop18h 42m

Lambert-St Louis

Mon 12/1

7:43 p.m.-12:11 p.m.

2 stops17h 28m

C$ 538

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 17/12

6:30 a.m.-3:27 p.m.

1 stop7h 57m

Lambert-St Louis

Mon 5/1

5:16 a.m.-11:40 a.m.

1 stop7h 24m

C$ 583

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 22/4

6:35 a.m.-4:45 p.m.

1 stop9h 10m

Lambert-St Louis

Mon 27/4

2:15 p.m.-11:06 p.m.

1 stop9h 51m

C$ 608

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 12/1

11:40 p.m.-3:29 p.m.

1 stop14h 49m

Lambert-St Louis

Sat 31/1

4:05 p.m.-12:14 a.m.

1 stop9h 09m

C$ 617

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$ 656

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 23/1

9:15 a.m.-4:45 p.m.

1 stop6h 30m

Lambert-St Louis

Tue 27/1

6:10 a.m.-12:44 a.m.

2 stops19h 34m

C$ 657

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$ 414. 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$ 577.

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$ 439. The most expensive day to fly to St. Louis is Friday, with ticket prices averaging around C$ 780.

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$ 489. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 717 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	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 December 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 10,496 reviews	Search Air Canada flights
United Airlines	PriceFrom C$ 450	Free Cancellation	Rating 7.4 9,063 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 576	Free Cancellation	Rating 7.2 3,190 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.