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Cheap flights from Alberta to St. Louis from C$ 252

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 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
7:00 a.m. - 12:16 a.m.
YYC
-
STL
16h 16m
1 stop
American Airlines Logo
9:08 a.m. - 11:42 p.m.
STL
-
YYC
15h 34m
1 stop
C$ 477American Airlines
Wed, 10 Jun - Wed, 17 Jun
Delta Logo
2:00 p.m. - 12:36 a.m.
YYC
-
STL
9h 36m
1 stop
Delta Logo
2:15 p.m. - 11:13 p.m.
STL
-
YYC
9h 58m
1 stop
C$ 502Delta
Fri, 23 Oct - Sun, 25 Oct
United Airlines Logo
9:30 a.m. - 4:31 p.m.
YYC
-
STL
6h 01m
1 stop
United Airlines Logo
1:36 p.m. - 6:30 p.m.
STL
-
YYC
5h 54m
1 stop
C$ 521United Airlines
Tue, 25 Aug - Wed, 26 Aug
Multiple Airlines Logo
8:45 a.m. - 7:31 p.m.
YYC
-
STL
33h 46m
2 stops
Multiple Airlines Logo
8:08 p.m. - 2:45 p.m.
STL
-
YYC
19h 37m
1 stop
C$ 540Multiple Airlines
Fri, 22 May - Mon, 25 May
Multiple Airlines Logo
9:00 p.m. - 5:33 p.m.
YYC
-
STL
19h 33m
2 stops
Multiple Airlines Logo
8:08 p.m. - 2:45 p.m.
STL
-
YYC
19h 37m
1 stop
C$ 555Multiple Airlines
Mon, 1 Jun - Fri, 5 Jun
WestJet Logo
7:00 a.m. - 3:58 p.m.
YYC
-
STL
7h 58m
1 stop
WestJet Logo
6:30 a.m. - 6:20 p.m.
STL
-
YYC
12h 50m
2 stops
C$ 565WestJet
Fri, 23 Oct - Sun, 25 Oct
United Airlines Logo
3:15 p.m. - 11:50 p.m.
YEG
-
STL
7h 35m
1 stop
United Airlines Logo
1:36 p.m. - 10:09 p.m.
STL
-
YEG
9h 33m
1 stop
C$ 670United Airlines
Tue, 18 Aug - Wed, 19 Aug
Air Canada Logo
9:30 a.m. - 6:42 p.m.
YEG
-
STL
8h 12m
1 stop
Air Canada Logo
8:55 a.m. - 10:58 p.m.
STL
-
YEG
15h 03m
1 stop
C$ 683Air Canada
Tue, 18 Aug - Wed, 19 Aug
WestJet Logo
9:40 a.m. - 9:32 a.m.
YEG
-
STL
22h 52m
2 stops
WestJet Logo
6:21 a.m. - 5:45 p.m.
STL
-
YEG
12h 24m
2 stops
C$ 801WestJet
Thu, 25 Jun - Mon, 6 Jul
Air Canada Logo
3:15 p.m. - 11:50 p.m.
YEG
-
STL
7h 35m
1 stop
Air Canada Logo
5:00 a.m. - 5:03 p.m.
STL
-
YEG
13h 03m
2 stops
C$ 803Air Canada
Tue, 18 Aug - Wed, 19 Aug

United Airlines flights from Alberta to St. Louis

Our best United Airlines deals on Alberta to St. Louis flight tickets
United Airlines
12 Jun
YYC8:30 a.m.Calgary
6h 16m
1 stop
STL3:46 p.m.Lambert-St Louis
14 Jun
STL1:13 p.m.Lambert-St Louis
10h 24m
1 stop
YYC10:37 p.m.Calgary
C$ 632
United Airlines
12 May
YYC6:00 a.m.Calgary
6h 13m
1 stop
STL1:13 p.m.Lambert-St Louis
15 May
STL8:46 a.m.Lambert-St Louis
14h 02m
1 stop
YYC9:48 p.m.Calgary
C$ 666
United Airlines
18 Aug
YEG3:15 p.m.Edmonton
7h 35m
1 stop
STL11:50 p.m.Lambert-St Louis
19 Aug
STL1:36 p.m.Lambert-St Louis
9h 33m
1 stop
YEG10:09 p.m.Edmonton
C$ 670

American Airlines flights from Alberta to St. Louis

Our best American Airlines deals on Alberta to St. Louis flight tickets
American Airlines
10 Jun
YYC7:00 a.m.Calgary
16h 16m
1 stop
STL12:16 a.m.Lambert-St Louis
17 Jun
STL9:08 a.m.Lambert-St Louis
15h 34m
1 stop
YYC11:42 p.m.Calgary
C$ 477
American Airlines
22 May
YYC1:40 p.m.Calgary
17h 52m
1 stop
STL8:32 a.m.Lambert-St Louis
25 May
STL7:00 a.m.Lambert-St Louis
17h 43m
1 stop
YYC11:43 p.m.Calgary
C$ 518
American Airlines
11 May
YYC6:45 a.m.Calgary
15h 14m
1 stop
STL10:59 p.m.Lambert-St Louis
15 May
STL5:20 a.m.Lambert-St Louis
7h 23m
1 stop
YYC11:43 a.m.Calgary
C$ 636

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 1 May 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 10/6

7:00 a.m.-12:16 a.m.

1 stop16h 16m

Lambert-St Louis

Wed 17/6

9:08 a.m.-11:42 p.m.

1 stop15h 34m

C$ 477

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 23/10

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

1 stop9h 36m

Lambert-St Louis

Sun 25/10

2:15 p.m.-11:13 p.m.

1 stop9h 58m

C$ 502
Quickest round-trip

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 25/8

9:30 a.m.-4:31 p.m.

1 stop6h 01m

Lambert-St Louis

Wed 26/8

1:36 p.m.-6:30 p.m.

1 stop5h 54m

C$ 521

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 22/5

8:45 a.m.-7:31 p.m.

2 stops33h 46m

Lambert-St Louis

Mon 25/5

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

1 stop19h 37m

C$ 540

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 1/6

9:00 p.m.-5:33 p.m.

2 stops19h 33m

Lambert-St Louis

Fri 5/6

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

1 stop19h 37m

C$ 555

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 23/10

7:00 a.m.-3:58 p.m.

1 stop7h 58m

Lambert-St Louis

Sun 25/10

6:30 a.m.-6:20 p.m.

2 stops12h 50m

C$ 565

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 18/8

3:15 p.m.-11:50 p.m.

1 stop7h 35m

Lambert-St Louis

Wed 19/8

1:36 p.m.-10:09 p.m.

1 stop9h 33m

C$ 670

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 18/8

9:30 a.m.-6:42 p.m.

1 stop8h 12m

Lambert-St Louis

Wed 19/8

8:55 a.m.-10:58 p.m.

1 stop15h 03m

C$ 683

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 25/6

9:40 a.m.-9:32 a.m.

2 stops22h 52m

Lambert-St Louis

Mon 6/7

6:21 a.m.-5:45 p.m.

2 stops12h 24m

C$ 801

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 18/8

3:15 p.m.-11:50 p.m.

1 stop7h 35m

Lambert-St Louis

Wed 19/8

5:00 a.m.-5:03 p.m.

2 stops13h 03m

C$ 803

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 August is, on average, the cheapest month to fly to St. Louis from Alberta, with most prices found around C$ 258. If you don’t want to visit St. Louis in August, then you should wait until July to fly from Alberta, when ticket prices are also cheap, with an average price of C$ 312.

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 01m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 6h 01m
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
10,983 reviews
Search Air Canada flights
DeltaPriceFrom C$ 313Free CancellationRating
7.9
8,465 reviews
Search Delta flights
United AirlinesPriceFrom C$ 537Free CancellationRating
7.4
9,677 reviews
Search United Airlines flights
WestJetPriceFrom C$ 587Free CancellationRating
7.2
3,331 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.

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