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Cheap flights from Alberta to St. Louis from $150

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 4/14. 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.
Multiple Airlines Logo
7:35 pm - 11:19 am
YYC
-
STL
14h 44m
1 stop
Multiple Airlines Logo
10:12 pm - 12:02 pm
STL
-
YYC
14h 50m
1 stop
$337Multiple Airlines
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
1:10 pm - 11:19 am
YYC
-
STL
21h 09m
2 stops
Multiple Airlines Logo
10:12 pm - 11:00 pm
STL
-
YYC
25h 48m
1 stop
$351Multiple Airlines
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
1:10 pm - 11:19 am
YYC
-
STL
21h 09m
2 stops
Multiple Airlines Logo
10:12 pm - 12:02 pm
STL
-
YYC
14h 50m
1 stop
$376Multiple Airlines
Thu, Mar 26 - Thu, Apr 2
Multiple Airlines Logo
7:35 pm - 11:19 am
YYC
-
STL
14h 44m
1 stop
Multiple Airlines Logo
10:12 pm - 12:02 pm
STL
-
YYC
14h 50m
1 stop
$410Multiple Airlines
Thu, Mar 26 - Thu, Apr 2
American Airlines Logo
1:40 pm - 11:56 pm
YYC
-
STL
9h 16m
1 stop
American Airlines Logo
6:00 am - 11:38 pm
STL
-
YYC
18h 38m
1 stop
$450American Airlines
Sat, May 16 - Fri, May 22
Delta Logo
7:45 am - 11:25 pm
YYC
-
STL
14h 40m
2 stops
Delta Logo
6:29 am - 7:12 pm
STL
-
YYC
13h 43m
2 stops
$452Delta
Thu, Mar 26 - Thu, Apr 2
Air Canada Logo
6:15 am - 8:26 pm
YYC
-
STL
13h 11m
1 stop
Air Canada Logo
8:17 am - 8:44 pm
STL
-
YYC
13h 27m
2 stops
$460Air Canada
Thu, Feb 26 - Sat, Feb 28
Air Canada Logo
6:15 am - 8:26 pm
YYC
-
STL
13h 11m
1 stop
Air Canada Logo
8:17 am - 8:44 pm
STL
-
YYC
13h 27m
2 stops
$462Air Canada
Thu, Feb 26 - Sat, Feb 28
Delta Logo
7:45 am - 11:25 pm
YYC
-
STL
14h 40m
2 stops
Delta Logo
6:29 am - 7:12 pm
STL
-
YYC
13h 43m
2 stops
$481Delta
Thu, Mar 26 - Thu, Apr 2
United Airlines Logo
6:00 am - 1:14 pm
YEG
-
STL
6h 14m
1 stop
United Airlines Logo
8:41 am - 2:14 pm
STL
-
YEG
6h 33m
1 stop
$502United Airlines
Sat, Feb 28 - Wed, Mar 4

Delta flights from Alberta to St. Louis

Our best Delta deals on Alberta to St. Louis flight tickets
Delta
Mar 26
YYC7:45 amCalgary
14h 40m
2 stops
STL11:25 pmLambert-St Louis
Apr 2
STL6:29 amLambert-St Louis
13h 43m
2 stops
YYC7:12 pmCalgary
$452
Delta
Mar 26
YYC7:45 amCalgary
14h 40m
2 stops
STL11:25 pmLambert-St Louis
Apr 2
STL6:29 amLambert-St Louis
13h 43m
2 stops
YYC7:12 pmCalgary
$481
Delta
May 2
YEG9:40 amEdmonton
12h 54m
2 stops
STL11:34 pmLambert-St Louis
May 12
STL8:53 amLambert-St Louis
9h 02m
1 stop
YEG4:55 pmEdmonton
$494

Air Canada flights from Alberta to St. Louis

Our best Air Canada deals on Alberta to St. Louis flight tickets
Air Canada
Mar 28
YYC5:35 amCalgary
8h 54m
1 stop
STL3:29 pmLambert-St Louis
Apr 4
STL4:05 pmLambert-St Louis
9h 18m
1 stop
YYC12:23 amCalgary
$405
Air Canada
Feb 26
YYC6:15 amCalgary
13h 11m
1 stop
STL8:26 pmLambert-St Louis
Feb 28
STL8:17 amLambert-St Louis
13h 27m
2 stops
YYC8:44 pmCalgary
$460
Air Canada
Feb 26
YYC6:15 amCalgary
13h 11m
1 stop
STL8:26 pmLambert-St Louis
Feb 28
STL8:17 amLambert-St Louis
13h 27m
2 stops
YYC8:44 pmCalgary
$462

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 February 11, 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

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 3/26

7:35 pm-11:19 am

1 stop14h 44m

Lambert-St Louis

Thu 4/2

10:12 pm-12:02 pm

1 stop14h 50m

$337

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 3/26

1:10 pm-11:19 am

2 stops21h 09m

Lambert-St Louis

Thu 4/2

10:12 pm-11:00 pm

1 stop25h 48m

$351

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 3/26

1:10 pm-11:19 am

2 stops21h 09m

Lambert-St Louis

Thu 4/2

10:12 pm-12:02 pm

1 stop14h 50m

$376

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 3/26

7:35 pm-11:19 am

1 stop14h 44m

Lambert-St Louis

Thu 4/2

10:12 pm-12:02 pm

1 stop14h 50m

$410

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 5/16

1:40 pm-11:56 pm

1 stop9h 16m

Lambert-St Louis

Fri 5/22

6:00 am-11:38 pm

1 stop18h 38m

$450

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 3/26

7:45 am-11:25 pm

2 stops14h 40m

Lambert-St Louis

Thu 4/2

6:29 am-7:12 pm

2 stops13h 43m

$452

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 2/26

6:15 am-8:26 pm

1 stop13h 11m

Lambert-St Louis

Sat 2/28

8:17 am-8:44 pm

2 stops13h 27m

$460

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 2/26

6:15 am-8:26 pm

1 stop13h 11m

Lambert-St Louis

Sat 2/28

8:17 am-8:44 pm

2 stops13h 27m

$462

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 3/26

7:45 am-11:25 pm

2 stops14h 40m

Lambert-St Louis

Thu 4/2

6:29 am-7:12 pm

2 stops13h 43m

$481

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Sat 2/28

6:00 am-1:14 pm

1 stop6h 14m

Lambert-St Louis

Wed 3/4

8:41 am-2:14 pm

1 stop6h 33m

$502

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, July 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 $416. The month of April is another great option to travel to St. Louis, with average flight prices from Alberta averaging around $429.

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 59m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 5h 59m
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
9,276 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
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

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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