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Cheap flights from Alberta to St. Louis from $197

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 9/13. 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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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.
Delta Logo
12:29 pm - 12:25 am
YYC
-
STL
10h 56m
1 stop
Delta Logo
2:20 pm - 11:00 pm
STL
-
YYC
9h 40m
1 stop
$348Delta
Mon, Apr 13 - Fri, Apr 17
Delta Logo
12:29 pm - 12:25 am
YYC
-
STL
10h 56m
1 stop
Delta Logo
2:20 pm - 11:00 pm
STL
-
YYC
9h 40m
1 stop
$375Delta
Mon, Apr 13 - Fri, Apr 17
American Airlines Logo
1:40 pm - 11:54 pm
YYC
-
STL
9h 14m
1 stop
American Airlines Logo
1:45 pm - 11:43 pm
STL
-
YYC
10h 58m
1 stop
$384American Airlines
Fri, May 22 - Tue, May 26
Delta Logo
7:45 am - 6:59 pm
YYC
-
STL
10h 14m
1 stop
Delta Logo
2:28 pm - 10:59 pm
STL
-
YYC
9h 31m
1 stop
$411Delta
Tue, Jul 14 - Thu, Aug 6
Multiple Airlines Logo
7:00 am - 8:55 am
YYC
-
STL
24h 55m
1 stop
Multiple Airlines Logo
8:08 pm - 5:00 pm
STL
-
YYC
21h 52m
2 stops
$423Multiple Airlines
Fri, May 22 - Tue, May 26
United Airlines Logo
8:30 am - 9:16 pm
YYC
-
STL
11h 46m
1 stop
United Airlines Logo
1:13 pm - 10:37 pm
STL
-
YYC
10h 24m
1 stop
$424United Airlines
Thu, May 28 - Mon, Jun 1
United Airlines Logo
8:30 am - 9:16 pm
YYC
-
STL
11h 46m
1 stop
United Airlines Logo
9:23 am - 10:37 pm
STL
-
YYC
14h 14m
1 stop
$425United Airlines
Thu, May 28 - Mon, Jun 1
Air Canada Logo
6:05 pm - 12:06 pm
YYC
-
STL
17h 01m
1 stop
Air Canada Logo
7:05 am - 6:41 pm
STL
-
YYC
12h 36m
1 stop
$428Air Canada
Fri, Jun 5 - Fri, Jun 19
Delta Logo
11:05 am - 11:21 pm
YYC
-
STL
11h 16m
2 stops
Delta Logo
10:19 am - 8:05 pm
STL
-
YYC
10h 46m
1 stop
$429Delta
Thu, May 28 - Mon, Jun 1
Air Canada Logo
8:00 am - 8:25 pm
YEG
-
STL
11h 25m
2 stops
Air Canada Logo
2:15 pm - 8:54 pm
STL
-
YEG
7h 39m
1 stop
$467Air Canada
Tue, May 5 - Wed, May 6

United Airlines flights from Alberta to St. Louis

Our best United Airlines deals on Alberta to St. Louis flight tickets
United Airlines
Jun 1
YEG3:17 pmEdmonton
7h 40m
1 stop
STL11:57 pmLambert-St Louis
Jun 2
STL5:10 amLambert-St Louis
9h 58m
1 stop
YEG2:08 pmEdmonton
$416
United Airlines
May 28
YYC8:30 amCalgary
11h 46m
1 stop
STL9:16 pmLambert-St Louis
Jun 1
STL1:13 pmLambert-St Louis
10h 24m
1 stop
YYC10:37 pmCalgary
$424
United Airlines
May 28
YYC8:30 amCalgary
11h 46m
1 stop
STL9:16 pmLambert-St Louis
Jun 1
STL9:23 amLambert-St Louis
14h 14m
1 stop
YYC10:37 pmCalgary
$425

Air Canada flights from Alberta to St. Louis

Our best Air Canada deals on Alberta to St. Louis flight tickets
Air Canada
Jun 5
YYC6:05 pmCalgary
17h 01m
1 stop
STL12:06 pmLambert-St Louis
Jun 19
STL7:05 amLambert-St Louis
12h 36m
1 stop
YYC6:41 pmCalgary
$428
Air Canada
Jun 3
YEG1:00 amEdmonton
10h 06m
1 stop
STL12:06 pmLambert-St Louis
Jun 9
STL7:05 amLambert-St Louis
8h 49m
1 stop
YEG2:54 pmEdmonton
$496
Air Canada
Aug 27
YEG6:00 amEdmonton
7h 02m
1 stop
STL2:02 pmLambert-St Louis
Aug 31
STL8:55 amLambert-St Louis
13h 03m
1 stop
YEG8:58 pmEdmonton
$498

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 832,500 searches. Data last updated March 29, 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 4/13

12:29 pm-12:25 am

1 stop10h 56m

Lambert-St Louis

Fri 4/17

2:20 pm-11:00 pm

1 stop9h 40m

$348

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 4/13

12:29 pm-12:25 am

1 stop10h 56m

Lambert-St Louis

Fri 4/17

2:20 pm-11:00 pm

1 stop9h 40m

$375

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 5/22

1:40 pm-11:54 pm

1 stop9h 14m

Lambert-St Louis

Tue 5/26

1:45 pm-11:43 pm

1 stop10h 58m

$384

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 7/14

7:45 am-6:59 pm

1 stop10h 14m

Lambert-St Louis

Thu 8/6

2:28 pm-10:59 pm

1 stop9h 31m

$411

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 5/22

7:00 am-8:55 am

1 stop24h 55m

Lambert-St Louis

Tue 5/26

8:08 pm-5:00 pm

2 stops21h 52m

$423

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 5/28

8:30 am-9:16 pm

1 stop11h 46m

Lambert-St Louis

Mon 6/1

1:13 pm-10:37 pm

1 stop10h 24m

$424

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 5/28

8:30 am-9:16 pm

1 stop11h 46m

Lambert-St Louis

Mon 6/1

9:23 am-10:37 pm

1 stop14h 14m

$425

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 6/5

6:05 pm-12:06 pm

1 stop17h 01m

Lambert-St Louis

Fri 6/19

7:05 am-6:41 pm

1 stop12h 36m

$428

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 5/28

11:05 am-11:21 pm

2 stops11h 16m

Lambert-St Louis

Mon 6/1

10:19 am-8:05 pm

1 stop10h 46m

$429
Quickest round-trip

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 5/5

8:00 am-8:25 pm

2 stops11h 25m

Lambert-St Louis

Wed 5/6

2:15 pm-8:54 pm

1 stop7h 39m

$467

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?

In general, October is the cheapest month to fly from Alberta to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $385. The month of July is another great option to travel to St. Louis, with average flight prices from Alberta averaging around $416.

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 13m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 6h 13m
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 are refreshed on a daily basis.

  • 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 necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
United AirlinesPriceFrom $422Free CancellationRating
7.4
9,509 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Alberta to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Alberta.

Can I find flights from Alberta to St. Louis with flexible booking policies on momondo?

All flight searches from Alberta to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Alberta to St. Louis?

Once all potential Alberta to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Alberta to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Alberta to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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