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Cheap flights from Alberta to St. Louis from C$ 298

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 9/5. 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.
Delta Logo
12:29 p.m. - 12:25 a.m.
YYC
-
STL
10h 56m
1 stop
Delta Logo
2:20 p.m. - 11:00 p.m.
STL
-
YYC
9h 40m
1 stop
C$ 517Delta
Mon, 13 Apr - Fri, 17 Apr
Delta Logo
12:30 p.m. - 12:21 a.m.
YYC
-
STL
10h 51m
1 stop
Delta Logo
2:20 p.m. - 11:00 p.m.
STL
-
YYC
9h 40m
1 stop
C$ 520Delta
Sun, 5 Apr - Tue, 14 Apr
United Airlines Logo
12:34 p.m. - 9:13 p.m.
YYC
-
STL
7h 39m
1 stop
United Airlines Logo
6:00 a.m. - 11:32 a.m.
STL
-
YYC
6h 32m
1 stop
C$ 521United Airlines
Tue, 19 May - Wed, 27 May
Air Canada Logo
7:00 a.m. - 3:25 p.m.
YYC
-
STL
7h 25m
1 stop
Air Canada Logo
1:05 p.m. - 9:32 p.m.
STL
-
YYC
9h 27m
1 stop
C$ 549Air Canada
Wed, 29 Apr - Sat, 2 May
Air Canada Logo
10:30 a.m. - 8:09 p.m.
YYC
-
STL
8h 39m
1 stop
Air Canada Logo
7:05 a.m. - 9:03 p.m.
STL
-
YYC
14h 58m
1 stop
C$ 586Air Canada
Thu, 28 May - Mon, 1 Jun
United Airlines Logo
8:30 a.m. - 9:16 p.m.
YYC
-
STL
11h 46m
1 stop
United Airlines Logo
8:15 p.m. - 11:32 a.m.
STL
-
YYC
16h 17m
1 stop
C$ 601United Airlines
Thu, 28 May - Mon, 1 Jun
United Airlines Logo
8:30 a.m. - 9:16 p.m.
YYC
-
STL
11h 46m
1 stop
United Airlines Logo
1:13 p.m. - 10:37 p.m.
STL
-
YYC
10h 24m
1 stop
C$ 603United Airlines
Thu, 28 May - Mon, 1 Jun
Delta Logo
11:05 a.m. - 11:21 p.m.
YYC
-
STL
11h 16m
2 stops
Delta Logo
10:19 a.m. - 8:05 p.m.
STL
-
YYC
10h 46m
1 stop
C$ 604Delta
Tue, 19 May - Wed, 27 May
United Airlines Logo
6:00 a.m. - 8:43 p.m.
YYC
-
STL
13h 43m
1 stop
United Airlines Logo
1:13 p.m. - 10:40 p.m.
STL
-
YYC
10h 27m
1 stop
C$ 618United Airlines
Tue, 7 Jul - Thu, 30 Jul
Air Canada Logo
8:00 a.m. - 8:25 p.m.
YEG
-
STL
11h 25m
2 stops
Air Canada Logo
2:15 p.m. - 8:54 p.m.
STL
-
YEG
7h 39m
1 stop
C$ 644Air Canada
Tue, 5 May - Wed, 6 May

United Airlines flights from Alberta to St. Louis

Our best United Airlines deals on Alberta to St. Louis flight tickets
United Airlines
19 May
YYC12:34 p.m.Calgary
7h 39m
1 stop
STL9:13 p.m.Lambert-St Louis
27 May
STL6:00 a.m.Lambert-St Louis
6h 32m
1 stop
YYC11:32 a.m.Calgary
C$ 521
United Airlines
28 May
YYC8:30 a.m.Calgary
11h 46m
1 stop
STL9:16 p.m.Lambert-St Louis
1 Jun
STL8:15 p.m.Lambert-St Louis
16h 17m
1 stop
YYC11:32 a.m.Calgary
C$ 601
United Airlines
28 May
YYC8:30 a.m.Calgary
11h 46m
1 stop
STL9:16 p.m.Lambert-St Louis
1 Jun
STL1:13 p.m.Lambert-St Louis
10h 24m
1 stop
YYC10:37 p.m.Calgary
C$ 603

American Airlines flights from Alberta to St. Louis

Our best American Airlines deals on Alberta to St. Louis flight tickets
American Airlines
19 May
YYC6:45 a.m.Calgary
14h 34m
2 stops
STL10:19 p.m.Lambert-St Louis
27 May
STL9:41 a.m.Lambert-St Louis
13h 02m
1 stop
YYC9:43 p.m.Calgary
C$ 703
American Airlines
31 Mar
YYC12:45 p.m.Calgary
19h 10m
1 stop
STL8:55 a.m.Lambert-St Louis
4 Apr
STL11:46 a.m.Lambert-St Louis
11h 10m
1 stop
YYC9:56 p.m.Calgary
C$ 747
American Airlines
10 May
YEG11:50 p.m.Edmonton
18h 39m
2 stops
STL7:29 p.m.Lambert-St Louis
17 May
STL7:05 a.m.Lambert-St Louis
15h 54m
2 stops
YEG9:59 p.m.Edmonton
C$ 856

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 26 March 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

Mon 13/4

12:29 p.m.-12:25 a.m.

1 stop10h 56m

Lambert-St Louis

Fri 17/4

2:20 p.m.-11:00 p.m.

1 stop9h 40m

C$ 517

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sun 5/4

12:30 p.m.-12:21 a.m.

1 stop10h 51m

Lambert-St Louis

Tue 14/4

2:20 p.m.-11:00 p.m.

1 stop9h 40m

C$ 520
Quickest round-trip

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 19/5

12:34 p.m.-9:13 p.m.

1 stop7h 39m

Lambert-St Louis

Wed 27/5

6:00 a.m.-11:32 a.m.

1 stop6h 32m

C$ 521

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 29/4

7:00 a.m.-3:25 p.m.

1 stop7h 25m

Lambert-St Louis

Sat 2/5

1:05 p.m.-9:32 p.m.

1 stop9h 27m

C$ 549

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 28/5

10:30 a.m.-8:09 p.m.

1 stop8h 39m

Lambert-St Louis

Mon 1/6

7:05 a.m.-9:03 p.m.

1 stop14h 58m

C$ 586

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 28/5

8:30 a.m.-9:16 p.m.

1 stop11h 46m

Lambert-St Louis

Mon 1/6

8:15 p.m.-11:32 a.m.

1 stop16h 17m

C$ 601

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 28/5

8:30 a.m.-9:16 p.m.

1 stop11h 46m

Lambert-St Louis

Mon 1/6

1:13 p.m.-10:37 p.m.

1 stop10h 24m

C$ 603

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 19/5

11:05 a.m.-11:21 p.m.

2 stops11h 16m

Lambert-St Louis

Wed 27/5

10:19 a.m.-8:05 p.m.

1 stop10h 46m

C$ 604

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 7/7

6:00 a.m.-8:43 p.m.

1 stop13h 43m

Lambert-St Louis

Thu 30/7

1:13 p.m.-10:40 p.m.

1 stop10h 27m

C$ 618

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 5/5

8:00 a.m.-8:25 p.m.

2 stops11h 25m

Lambert-St Louis

Wed 6/5

2:15 p.m.-8:54 p.m.

1 stop7h 39m

C$ 644

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$ 531. If you don’t want to visit St. Louis in October, then you should wait until July to fly from Alberta, when ticket prices are also cheap, with an average price of C$ 574.

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

7h 40m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 7h 40m
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?

  • 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$ 260Free CancellationRating
7.1
10,842 reviews
Search Air Canada flights
WestJetPriceFrom C$ 568Free CancellationRating
7.2
3,303 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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