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Cheap flights from Alberta to St. Louis from C$ 242

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 7/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Multiple Airlines Logo
7:00 a.m. - 5:30 p.m.
YYC
-
STL
9h 30m
1 stop
Multiple Airlines Logo
6:33 p.m. - 5:10 p.m.
STL
-
YYC
23h 37m
1 stop
C$ 447Multiple Airlines
Thu, 27 Aug - Sun, 30 Aug
Multiple Airlines Logo
7:00 a.m. - 8:52 a.m.
YYC
-
STL
24h 52m
1 stop
Multiple Airlines Logo
5:33 p.m. - 9:50 p.m.
STL
-
YYC
29h 17m
1 stop
C$ 448Multiple Airlines
Fri, 28 Aug - Mon, 31 Aug
Multiple Airlines Logo
7:00 a.m. - 5:30 p.m.
YYC
-
STL
9h 30m
1 stop
Multiple Airlines Logo
5:33 p.m. - 3:15 p.m.
STL
-
YYC
22h 42m
2 stops
C$ 459Multiple Airlines
Thu, 27 Aug - Mon, 31 Aug
Multiple Airlines Logo
7:00 a.m. - 5:30 p.m.
YYC
-
STL
9h 30m
1 stop
Multiple Airlines Logo
5:33 p.m. - 5:10 p.m.
STL
-
YYC
24h 37m
1 stop
C$ 463Multiple Airlines
Thu, 27 Aug - Fri, 28 Aug
Multiple Airlines Logo
11:40 a.m. - 8:52 a.m.
YYC
-
STL
20h 12m
1 stop
Multiple Airlines Logo
5:33 p.m. - 3:15 p.m.
STL
-
YYC
22h 42m
2 stops
C$ 470Multiple Airlines
Fri, 28 Aug - Mon, 31 Aug
United Airlines Logo
3:17 p.m. - 11:45 p.m.
YEG
-
STL
7h 28m
1 stop
United Airlines Logo
4:40 p.m. - 10:04 p.m.
STL
-
YEG
6h 24m
1 stop
C$ 631United Airlines
Tue, 20 Oct - Wed, 21 Oct
United Airlines Logo
6:00 a.m. - 11:57 p.m.
YEG
-
STL
16h 57m
1 stop
United Airlines Logo
4:45 p.m. - 10:04 p.m.
STL
-
YEG
6h 19m
1 stop
C$ 657United Airlines
Fri, 5 Jun - Sat, 6 Jun
Air Canada Logo
3:17 p.m. - 11:45 p.m.
YEG
-
STL
7h 28m
1 stop
Air Canada Logo
6:00 a.m. - 1:24 p.m.
STL
-
YEG
8h 24m
2 stops
C$ 715Air Canada
Tue, 20 Oct - Wed, 21 Oct
Alaska Airlines Logo
11:46 a.m. - 4:37 p.m.
YEG
-
STL
27h 51m
2 stops
Alaska Airlines Logo
7:41 p.m. - 10:56 a.m.
STL
-
YEG
16h 15m
1 stop
C$ 744Alaska Airlines
Fri, 5 Jun - Sat, 6 Jun
WestJet Logo
9:40 a.m. - 9:32 a.m.
YEG
-
STL
22h 52m
2 stops
WestJet Logo
3:57 p.m. - 12:44 a.m.
STL
-
YEG
9h 47m
2 stops
C$ 805WestJet
Thu, 25 Jun - Mon, 6 Jul

WestJet flights from Alberta to St. Louis

Our best WestJet deals on Alberta to St. Louis flight tickets
WestJet
12 Oct
YYC11:00 a.m.Calgary
8h 37m
1 stop
STL8:37 p.m.Lambert-St Louis
16 Oct
STL6:30 a.m.Lambert-St Louis
10h 45m
2 stops
YYC4:15 p.m.Calgary
C$ 603
WestJet
17 Jun
YYC12:30 a.m.Calgary
8h 16m
1 stop
STL9:46 a.m.Lambert-St Louis
26 Jun
STL6:21 a.m.Lambert-St Louis
12h 09m
2 stops
YYC5:30 p.m.Calgary
C$ 605
WestJet
17 Jun
YYC12:30 a.m.Calgary
8h 16m
1 stop
STL9:46 a.m.Lambert-St Louis
22 Jun
STL3:57 p.m.Lambert-St Louis
9h 47m
2 stops
YYC12:44 a.m.Calgary
C$ 608

United Airlines flights from Alberta to St. Louis

Our best United Airlines deals on Alberta to St. Louis flight tickets
United Airlines
28 Aug
YYC9:30 a.m.Calgary
10h 08m
1 stop
STL8:38 p.m.Lambert-St Louis
31 Aug
STL1:36 p.m.Lambert-St Louis
5h 54m
1 stop
YYC6:30 p.m.Calgary
C$ 562
United Airlines
28 Aug
YYC9:30 a.m.Calgary
10h 08m
1 stop
STL8:38 p.m.Lambert-St Louis
31 Aug
STL1:36 p.m.Lambert-St Louis
5h 54m
1 stop
YYC6:30 p.m.Calgary
C$ 564
United Airlines
20 Oct
YEG3:17 p.m.Edmonton
7h 28m
1 stop
STL11:45 p.m.Lambert-St Louis
21 Oct
STL4:40 p.m.Lambert-St Louis
6h 24m
1 stop
YEG10:04 p.m.Edmonton
C$ 631

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 19 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

Thu 27/8

7:00 a.m.-5:30 p.m.

1 stop9h 30m

Lambert-St Louis

Sun 30/8

6:33 p.m.-5:10 p.m.

1 stop23h 37m

C$ 447

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 28/8

7:00 a.m.-8:52 a.m.

1 stop24h 52m

Lambert-St Louis

Mon 31/8

5:33 p.m.-9:50 p.m.

1 stop29h 17m

C$ 448

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 27/8

7:00 a.m.-5:30 p.m.

1 stop9h 30m

Lambert-St Louis

Mon 31/8

5:33 p.m.-3:15 p.m.

2 stops22h 42m

C$ 459

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 27/8

7:00 a.m.-5:30 p.m.

1 stop9h 30m

Lambert-St Louis

Fri 28/8

5:33 p.m.-5:10 p.m.

1 stop24h 37m

C$ 463

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 28/8

11:40 a.m.-8:52 a.m.

1 stop20h 12m

Lambert-St Louis

Mon 31/8

5:33 p.m.-3:15 p.m.

2 stops22h 42m

C$ 470
Quickest round-trip

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 20/10

3:17 p.m.-11:45 p.m.

1 stop7h 28m

Lambert-St Louis

Wed 21/10

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

1 stop6h 24m

C$ 631

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 5/6

6:00 a.m.-11:57 p.m.

1 stop16h 57m

Lambert-St Louis

Sat 6/6

4:45 p.m.-10:04 p.m.

1 stop6h 19m

C$ 657

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 20/10

3:17 p.m.-11:45 p.m.

1 stop7h 28m

Lambert-St Louis

Wed 21/10

6:00 a.m.-1:24 p.m.

2 stops8h 24m

C$ 715

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 5/6

11:46 a.m.-4:37 p.m.

2 stops27h 51m

Lambert-St Louis

Sat 6/6

7:41 p.m.-10:56 a.m.

1 stop16h 15m

C$ 744

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

3:57 p.m.-12:44 a.m.

2 stops9h 47m

C$ 805

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$ 260. 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$ 315.

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 31m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 5h 31m
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$ 259Free CancellationRating
7.1
11,064 reviews
Search Air Canada flights
DeltaPriceFrom C$ 315Free CancellationRating
7.9
8,452 reviews
Search Delta flights
WestJetPriceFrom C$ 596Free CancellationRating
7.2
3,339 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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