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Cheap flights from Alberta to St. Louis from C$ 233

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Alberta to St. Louis departing on 25/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Alberta to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:40 p.m. - 11:56 p.m.
YYC
-
STL
9h 16m
1 stop
American Airlines Logo
1:45 p.m. - 11:43 p.m.
STL
-
YYC
10h 58m
1 stop
C$ 388American Airlines
Wed, 20 May - Wed, 27 May
United Airlines Logo
8:30 a.m. - 7:23 p.m.
YYC
-
STL
9h 53m
1 stop
United Airlines Logo
9:06 a.m. - 1:53 p.m.
STL
-
YYC
5h 47m
1 stop
C$ 520United Airlines
Sat, 23 May - Wed, 27 May
American Airlines Logo
1:40 p.m. - 8:30 p.m.
YYC
-
STL
5h 50m
1 stop
American Airlines Logo
6:00 a.m. - 11:43 p.m.
STL
-
YYC
18h 43m
1 stop
C$ 532American Airlines
Tue, 2 Jun - Wed, 3 Jun
Multiple Airlines Logo
8:00 p.m. - 4:15 p.m.
YYC
-
STL
19h 15m
2 stops
Multiple Airlines Logo
8:08 p.m. - 2:45 p.m.
STL
-
YYC
19h 37m
1 stop
C$ 535Multiple Airlines
Wed, 20 May - Wed, 27 May
Multiple Airlines Logo
7:00 a.m. - 8:55 a.m.
YYC
-
STL
24h 55m
1 stop
Multiple Airlines Logo
6:33 p.m. - 3:15 p.m.
STL
-
YYC
21h 42m
2 stops
C$ 553Multiple Airlines
Thu, 4 Jun - Sun, 7 Jun
Delta Logo
2:00 p.m. - 12:36 a.m.
YYC
-
STL
9h 36m
1 stop
Delta Logo
2:15 p.m. - 11:06 p.m.
STL
-
YYC
9h 51m
1 stop
C$ 557Delta
Thu, 24 Sep - Mon, 28 Sep
Air Canada Logo
12:55 a.m. - 12:21 p.m.
YYC
-
STL
10h 26m
1 stop
Air Canada Logo
2:15 p.m. - 9:05 p.m.
STL
-
YYC
7h 50m
1 stop
C$ 558Air Canada
Thu, 18 Jun - Sun, 21 Jun
Delta Logo
12:27 p.m. - 9:06 p.m.
YYC
-
STL
7h 39m
1 stop
Delta Logo
10:19 a.m. - 8:30 p.m.
STL
-
YYC
11h 11m
2 stops
C$ 560Delta
Sat, 23 May - Wed, 27 May
Multiple Airlines Logo
7:00 a.m. - 8:55 a.m.
YYC
-
STL
24h 55m
1 stop
Multiple Airlines Logo
8:08 p.m. - 11:35 a.m.
STL
-
YYC
16h 27m
2 stops
C$ 579Multiple Airlines
Thu, 28 May - Mon, 1 Jun
Air Canada Logo
8:00 a.m. - 8:09 p.m.
YEG
-
STL
11h 09m
1 stop
Air Canada Logo
7:05 a.m. - 10:54 p.m.
STL
-
YEG
16h 49m
1 stop
C$ 694Air Canada
Thu, 7 May - Tue, 12 May

American Airlines flights from Alberta to St. Louis

Our best American Airlines deals on Alberta to St. Louis flight tickets
American Airlines
20 May
YYC1:40 p.m.Calgary
9h 16m
1 stop
STL11:56 p.m.Lambert-St Louis
27 May
STL1:45 p.m.Lambert-St Louis
10h 58m
1 stop
YYC11:43 p.m.Calgary
C$ 388
American Airlines
2 Jun
YYC1:40 p.m.Calgary
5h 50m
1 stop
STL8:30 p.m.Lambert-St Louis
3 Jun
STL6:00 a.m.Lambert-St Louis
18h 43m
1 stop
YYC11:43 p.m.Calgary
C$ 532
American Airlines
15 May
YYC1:40 p.m.Calgary
17h 47m
1 stop
STL8:27 a.m.Lambert-St Louis
24 May
STL7:00 a.m.Lambert-St Louis
17h 43m
1 stop
YYC11:43 p.m.Calgary
C$ 605

United Airlines flights from Alberta to St. Louis

Our best United Airlines deals on Alberta to St. Louis flight tickets
United Airlines
23 May
YYC8:30 a.m.Calgary
9h 53m
1 stop
STL7:23 p.m.Lambert-St Louis
27 May
STL9:06 a.m.Lambert-St Louis
5h 47m
1 stop
YYC1:53 p.m.Calgary
C$ 520
United Airlines
5 Jun
YEG3:17 p.m.Edmonton
7h 40m
1 stop
STL11:57 p.m.Lambert-St Louis
8 Jun
STL5:10 a.m.Lambert-St Louis
9h 58m
1 stop
YEG2:08 p.m.Edmonton
C$ 659
United Airlines
4 Jun
YEG3:17 p.m.Edmonton
7h 40m
1 stop
STL11:57 p.m.Lambert-St Louis
8 Jun
STL4:48 p.m.Lambert-St Louis
6h 16m
1 stop
YEG10:04 p.m.Edmonton
C$ 661

momondo Fare Finder

 
Customize your flight search to find flights from Alberta to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 21 April 2026.
Use the filters below to find and compare flights from Alberta to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 20/5

1:40 p.m.-11:56 p.m.

1 stop9h 16m

Lambert-St Louis

Wed 27/5

1:45 p.m.-11:43 p.m.

1 stop10h 58m

C$ 388
Quickest round-trip

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 23/5

8:30 a.m.-7:23 p.m.

1 stop9h 53m

Lambert-St Louis

Wed 27/5

9:06 a.m.-1:53 p.m.

1 stop5h 47m

C$ 520

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 2/6

1:40 p.m.-8:30 p.m.

1 stop5h 50m

Lambert-St Louis

Wed 3/6

6:00 a.m.-11:43 p.m.

1 stop18h 43m

C$ 532

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 20/5

8:00 p.m.-4:15 p.m.

2 stops19h 15m

Lambert-St Louis

Wed 27/5

8:08 p.m.-2:45 p.m.

1 stop19h 37m

C$ 535

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 4/6

7:00 a.m.-8:55 a.m.

1 stop24h 55m

Lambert-St Louis

Sun 7/6

6:33 p.m.-3:15 p.m.

2 stops21h 42m

C$ 553

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 24/9

2:00 p.m.-12:36 a.m.

1 stop9h 36m

Lambert-St Louis

Mon 28/9

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

1 stop9h 51m

C$ 557

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 18/6

12:55 a.m.-12:21 p.m.

1 stop10h 26m

Lambert-St Louis

Sun 21/6

2:15 p.m.-9:05 p.m.

1 stop7h 50m

C$ 558

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 23/5

12:27 p.m.-9:06 p.m.

1 stop7h 39m

Lambert-St Louis

Wed 27/5

10:19 a.m.-8:30 p.m.

2 stops11h 11m

C$ 560

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 28/5

7:00 a.m.-8:55 a.m.

1 stop24h 55m

Lambert-St Louis

Mon 1/6

8:08 p.m.-11:35 a.m.

2 stops16h 27m

C$ 579

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 7/5

8:00 a.m.-8:09 p.m.

1 stop11h 09m

Lambert-St Louis

Tue 12/5

7:05 a.m.-10:54 p.m.

1 stop16h 49m

C$ 694

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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

The month of October is, on average, the cheapest month to fly to St. Louis from Alberta, with most prices found around C$ 526. If you don’t want to visit St. Louis in October, then you should wait until March to fly from Alberta, when ticket prices are also cheap, with an average price of C$ 537.

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

6h 46m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 6h 46m
There are no direct flights from Alberta to St. Louis. There are no popular flight routes from Alberta to St. Louis.
Search flight deals

Frequently asked questions about flying from Alberta to 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?

  • 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 CanadaPriceFrom C$ 257Free CancellationRating
7.1
10,947 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 538Free CancellationRating
7.4
9,613 reviews
Search United Airlines flights
WestJetPriceFrom C$ 588Free CancellationRating
7.2
3,323 reviews
Search WestJet flights

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.

An easier way to manage your St. Louis trip

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