Cheap flights from Alberta to St. Louis from C$ 294

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 4/8. 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
1 adult, Economy, 0 bags

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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
1:41 p.m. - 12:16 a.m.
YYC
-
STL
9h 35m
1 stop
American Airlines Logo
1:25 p.m. - 11:49 p.m.
STL
-
YYC
11h 24m
1 stop
C$ 509American Airlines
Wed, 1 Jul - Tue, 7 Jul
Air Canada Logo
12:55 a.m. - 2:02 p.m.
YYC
-
STL
12h 07m
1 stop
Air Canada Logo
12:10 p.m. - 9:13 p.m.
STL
-
YYC
10h 03m
1 stop
C$ 545Air Canada
Wed, 5 Aug - Sun, 9 Aug
Air Canada Logo
7:50 p.m. - 12:21 p.m.
YYC
-
STL
15h 31m
1 stop
Air Canada Logo
2:15 p.m. - 9:05 p.m.
STL
-
YYC
7h 50m
1 stop
C$ 577Air Canada
Thu, 18 Jun - Wed, 24 Jun
Multiple Airlines Logo
8:45 a.m. - 7:23 p.m.
YYC
-
STL
9h 38m
1 stop
Multiple Airlines Logo
6:34 p.m. - 5:10 p.m.
STL
-
YYC
23h 36m
1 stop
C$ 579Multiple Airlines
Thu, 6 Aug - Sun, 9 Aug
WestJet Logo
7:00 a.m. - 6:07 p.m.
YYC
-
STL
10h 07m
1 stop
WestJet Logo
11:18 a.m. - 7:40 p.m.
STL
-
YYC
9h 22m
2 stops
C$ 601WestJet
Wed, 1 Jul - Tue, 7 Jul
United Airlines Logo
6:00 a.m. - 11:45 p.m.
YEG
-
STL
16h 45m
1 stop
United Airlines Logo
4:40 p.m. - 10:04 p.m.
STL
-
YEG
6h 24m
1 stop
C$ 618United Airlines
Tue, 20 Oct - Wed, 21 Oct
WestJet Logo
9:00 p.m. - 10:48 a.m.
YYC
-
STL
12h 48m
2 stops
WestJet Logo
6:45 a.m. - 8:05 p.m.
STL
-
YYC
14h 20m
1 stop
C$ 620WestJet
Mon, 5 Oct - Sun, 18 Oct
Delta Logo
7:30 a.m. - 8:35 p.m.
YEG
-
STL
12h 05m
2 stops
Delta Logo
11:16 a.m. - 4:55 p.m.
STL
-
YEG
6h 39m
1 stop
C$ 700Delta
Thu, 24 Sep - Sat, 26 Sep
United Airlines Logo
6:00 a.m. - 11:45 p.m.
YEG
-
STL
16h 45m
1 stop
United Airlines Logo
4:40 p.m. - 10:04 p.m.
STL
-
YEG
6h 24m
1 stop
C$ 730United Airlines
Thu, 24 Sep - Sat, 26 Sep
Delta Logo
7:30 a.m. - 8:35 p.m.
YEG
-
STL
12h 05m
2 stops
Delta Logo
11:16 a.m. - 4:55 p.m.
STL
-
YEG
6h 39m
1 stop
C$ 796Delta
Thu, 24 Sep - Sat, 26 Sep

American Airlines flights from Alberta to St. Louis

Our best American Airlines deals on Alberta to St. Louis flight tickets
American Airlines
1 Jul
YYC1:41 p.m.Calgary
9h 35m
1 stop
STL12:16 a.m.Lambert-St Louis
7 Jul
STL1:25 p.m.Lambert-St Louis
11h 24m
1 stop
YYC11:49 p.m.Calgary
C$ 509
American Airlines
10 Jul
YYC6:45 a.m.Calgary
12h 08m
1 stop
STL7:53 p.m.Lambert-St Louis
13 Jul
STL5:58 p.m.Lambert-St Louis
6h 51m
1 stop
YYC11:49 p.m.Calgary
C$ 666
American Airlines
18 Jun
YYC1:41 p.m.Calgary
9h 35m
1 stop
STL12:16 a.m.Lambert-St Louis
26 Jun
STL7:03 a.m.Lambert-St Louis
17h 39m
1 stop
YYC11:42 p.m.Calgary
C$ 694

WestJet flights from Alberta to St. Louis

Our best WestJet deals on Alberta to St. Louis flight tickets
WestJet
1 Jul
YYC7:00 a.m.Calgary
10h 07m
1 stop
STL6:07 p.m.Lambert-St Louis
7 Jul
STL11:18 a.m.Lambert-St Louis
9h 22m
2 stops
YYC7:40 p.m.Calgary
C$ 601
WestJet
5 Oct
YYC9:00 p.m.Calgary
12h 48m
2 stops
STL10:48 a.m.Lambert-St Louis
18 Oct
STL6:45 a.m.Lambert-St Louis
14h 20m
1 stop
YYC8:05 p.m.Calgary
C$ 620
WestJet
5 Oct
YYC12:25 p.m.Calgary
9h 55m
2 stops
STL11:20 p.m.Lambert-St Louis
18 Oct
STL6:45 a.m.Lambert-St Louis
11h 25m
2 stops
YYC5:10 p.m.Calgary
C$ 622

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 6 June 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 1/7

1:41 p.m.-12:16 a.m.

1 stop9h 35m

Lambert-St Louis

Tue 7/7

1:25 p.m.-11:49 p.m.

1 stop11h 24m

C$ 509

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 5/8

12:55 a.m.-2:02 p.m.

1 stop12h 07m

Lambert-St Louis

Sun 9/8

12:10 p.m.-9:13 p.m.

1 stop10h 03m

C$ 545

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 18/6

7:50 p.m.-12:21 p.m.

1 stop15h 31m

Lambert-St Louis

Wed 24/6

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

1 stop7h 50m

C$ 577

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 6/8

8:45 a.m.-7:23 p.m.

1 stop9h 38m

Lambert-St Louis

Sun 9/8

6:34 p.m.-5:10 p.m.

1 stop23h 36m

C$ 579

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 1/7

7:00 a.m.-6:07 p.m.

1 stop10h 07m

Lambert-St Louis

Tue 7/7

11:18 a.m.-7:40 p.m.

2 stops9h 22m

C$ 601

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 20/10

6:00 a.m.-11:45 p.m.

1 stop16h 45m

Lambert-St Louis

Wed 21/10

4:40 p.m.-10:04 p.m.

1 stop6h 24m

C$ 618

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 5/10

9:00 p.m.-10:48 a.m.

2 stops12h 48m

Lambert-St Louis

Sun 18/10

6:45 a.m.-8:05 p.m.

1 stop14h 20m

C$ 620
Quickest round-trip

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 24/9

7:30 a.m.-8:35 p.m.

2 stops12h 05m

Lambert-St Louis

Sat 26/9

11:16 a.m.-4:55 p.m.

1 stop6h 39m

C$ 700

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 24/9

6:00 a.m.-11:45 p.m.

1 stop16h 45m

Lambert-St Louis

Sat 26/9

4:40 p.m.-10:04 p.m.

1 stop6h 24m

C$ 730

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 24/9

7:30 a.m.-8:35 p.m.

2 stops12h 05m

Lambert-St Louis

Sat 26/9

11:16 a.m.-4:55 p.m.

1 stop6h 39m

C$ 796

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$ 263. 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$ 319.

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 04m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 6h 04m
There are no direct flights from Alberta to St. Louis. There are no popular flight routes from Alberta to St. Louis.

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$ 262Free CancellationRating
7.1
11,129 reviews
Search Air Canada flights
DeltaPriceFrom C$ 319Free CancellationRating
7.8
8,396 reviews
Search Delta flights
WestJetPriceFrom C$ 671Free CancellationRating
7.2
3,351 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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1 adult
Mon 6/7
Mon 13/7

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