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Cheap flights from Alberta to St. Louis from C$ 217

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 20/4. 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
6:40 a.m. - 4:50 p.m.
YYC
-
STL
9h 10m
1 stop
Delta Logo
2:27 p.m. - 10:57 p.m.
STL
-
YYC
9h 30m
1 stop
C$ 554Delta
Fri, 1 May - Thu, 14 May
Delta Logo
7:40 a.m. - 11:13 p.m.
YYC
-
STL
14h 33m
2 stops
Delta Logo
2:20 p.m. - 11:00 p.m.
STL
-
YYC
9h 40m
1 stop
C$ 569Delta
Thu, 23 Apr - Thu, 30 Apr
American Airlines Logo
1:30 p.m. - 1:39 p.m.
YYC
-
STL
23h 09m
1 stop
American Airlines Logo
4:13 p.m. - 11:44 a.m.
STL
-
YYC
20h 31m
1 stop
C$ 573American Airlines
Tue, 31 Mar - Sat, 4 Apr
Delta Logo
7:40 a.m. - 11:36 p.m.
YYC
-
STL
14h 56m
2 stops
Delta Logo
2:20 p.m. - 11:00 p.m.
STL
-
YYC
9h 40m
1 stop
C$ 575Delta
Tue, 14 Apr - Fri, 17 Apr
Air Canada Logo
11:40 p.m. - 3:24 p.m.
YYC
-
STL
14h 44m
1 stop
Air Canada Logo
4:05 p.m. - 12:23 a.m.
STL
-
YYC
9h 18m
1 stop
C$ 626Air Canada
Mon, 30 Mar - Sat, 4 Apr
United Airlines Logo
6:00 a.m. - 8:54 p.m.
YYC
-
STL
13h 54m
1 stop
United Airlines Logo
6:30 a.m. - 11:32 a.m.
STL
-
YYC
6h 02m
1 stop
C$ 630United Airlines
Tue, 31 Mar - Sun, 5 Apr
Air Canada Logo
7:00 a.m. - 3:24 p.m.
YYC
-
STL
7h 24m
1 stop
Air Canada Logo
7:45 a.m. - 12:23 a.m.
STL
-
YYC
17h 38m
2 stops
C$ 683Air Canada
Tue, 31 Mar - Sat, 4 Apr
United Airlines Logo
6:00 a.m. - 8:54 p.m.
YYC
-
STL
13h 54m
1 stop
United Airlines Logo
8:15 p.m. - 11:32 a.m.
STL
-
YYC
16h 17m
1 stop
C$ 685United Airlines
Mon, 30 Mar - Mon, 6 Apr
WestJet Logo
7:30 a.m. - 11:14 p.m.
YEG
-
STL
14h 44m
2 stops
WestJet Logo
6:00 a.m. - 8:55 p.m.
STL
-
YEG
15h 55m
2 stops
C$ 768WestJet
Fri, 17 Apr - Mon, 20 Apr
WestJet Logo
9:15 a.m. - 11:14 p.m.
YEG
-
STL
12h 59m
1 stop
WestJet Logo
6:00 a.m. - 8:55 p.m.
STL
-
YEG
15h 55m
2 stops
C$ 772WestJet
Fri, 17 Apr - Mon, 20 Apr

Air Canada flights from Alberta to St. Louis

Our best Air Canada deals on Alberta to St. Louis flight tickets
Air Canada
30 Mar
YYC11:40 p.m.Calgary
14h 44m
1 stop
STL3:24 p.m.Lambert-St Louis
4 Apr
STL4:05 p.m.Lambert-St Louis
9h 18m
1 stop
YYC12:23 a.m.Calgary
C$ 626
Air Canada
31 Mar
YYC7:00 a.m.Calgary
7h 24m
1 stop
STL3:24 p.m.Lambert-St Louis
4 Apr
STL7:45 a.m.Lambert-St Louis
17h 38m
2 stops
YYC12:23 a.m.Calgary
C$ 683
Air Canada
14 Apr
YEG6:00 a.m.Edmonton
8h 25m
1 stop
STL3:25 p.m.Lambert-St Louis
17 Apr
STL4:05 p.m.Lambert-St Louis
9h 24m
1 stop
YEG12:29 a.m.Edmonton
C$ 692

United Airlines flights from Alberta to St. Louis

Our best United Airlines deals on Alberta to St. Louis flight tickets
United Airlines
31 Mar
YYC6:00 a.m.Calgary
13h 54m
1 stop
STL8:54 p.m.Lambert-St Louis
5 Apr
STL6:30 a.m.Lambert-St Louis
6h 02m
1 stop
YYC11:32 a.m.Calgary
C$ 630
United Airlines
30 Mar
YYC6:00 a.m.Calgary
13h 54m
1 stop
STL8:54 p.m.Lambert-St Louis
6 Apr
STL8:15 p.m.Lambert-St Louis
16h 17m
1 stop
YYC11:32 a.m.Calgary
C$ 685
United Airlines
10 May
YEG6:00 a.m.Edmonton
9h 57m
1 stop
STL4:57 p.m.Lambert-St Louis
20 May
STL8:46 a.m.Lambert-St Louis
14h 18m
1 stop
YEG10:04 p.m.Edmonton
C$ 734

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 10 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
Quickest round-trip

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 1/5

6:40 a.m.-4:50 p.m.

1 stop9h 10m

Lambert-St Louis

Thu 14/5

2:27 p.m.-10:57 p.m.

1 stop9h 30m

C$ 554

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 23/4

7:40 a.m.-11:13 p.m.

2 stops14h 33m

Lambert-St Louis

Thu 30/4

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

1 stop9h 40m

C$ 569

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 31/3

1:30 p.m.-1:39 p.m.

1 stop23h 09m

Lambert-St Louis

Sat 4/4

4:13 p.m.-11:44 a.m.

1 stop20h 31m

C$ 573

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 14/4

7:40 a.m.-11:36 p.m.

2 stops14h 56m

Lambert-St Louis

Fri 17/4

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

1 stop9h 40m

C$ 575

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 30/3

11:40 p.m.-3:24 p.m.

1 stop14h 44m

Lambert-St Louis

Sat 4/4

4:05 p.m.-12:23 a.m.

1 stop9h 18m

C$ 626

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 31/3

6:00 a.m.-8:54 p.m.

1 stop13h 54m

Lambert-St Louis

Sun 5/4

6:30 a.m.-11:32 a.m.

1 stop6h 02m

C$ 630

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 31/3

7:00 a.m.-3:24 p.m.

1 stop7h 24m

Lambert-St Louis

Sat 4/4

7:45 a.m.-12:23 a.m.

2 stops17h 38m

C$ 683

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 30/3

6:00 a.m.-8:54 p.m.

1 stop13h 54m

Lambert-St Louis

Mon 6/4

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

1 stop16h 17m

C$ 685

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 17/4

7:30 a.m.-11:14 p.m.

2 stops14h 44m

Lambert-St Louis

Mon 20/4

6:00 a.m.-8:55 p.m.

2 stops15h 55m

C$ 768

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 17/4

9:15 a.m.-11:14 p.m.

1 stop12h 59m

Lambert-St Louis

Mon 20/4

6:00 a.m.-8:55 p.m.

2 stops15h 55m

C$ 772

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$ 522. 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$ 564.

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

9h 34m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 9h 34m
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$ 355Free CancellationRating
7.1
10,800 reviews
Search Air Canada flights
WestJetPriceFrom C$ 559Free CancellationRating
7.2
3,288 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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