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Cheap flights from Alberta to St. Louis from $173

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 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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 am - 9:40 amYYC  Calgary-STL Lambert-St Louis
25h 40m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
10:35 am - 11:00 amSTL  Lambert-St Louis-YYC Calgary
25h 25m1 stop Atlanta Hartsfield-Jackson
$314Multiple Airlines
Wed, Oct 14 - Sun, Oct 18
Multiple Airlines Logo
7:00 am - 9:40 amYYC  Calgary-STL Lambert-St Louis
25h 40m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
10:35 am - 11:00 amSTL  Lambert-St Louis-YYC Calgary
25h 25m1 stop Atlanta Hartsfield-Jackson
$327Multiple Airlines
Wed, Oct 14 - Fri, Oct 23
Multiple Airlines Logo
7:00 am - 9:40 amYYC  Calgary-STL Lambert-St Louis
25h 40m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
10:35 am - 7:14 pmSTL  Lambert-St Louis-YYC Calgary
9h 39m1 stop Atlanta Hartsfield-Jackson
$334Multiple Airlines
Wed, Oct 14 - Wed, Oct 28
Multiple Airlines Logo
12:20 am - 1:10 pmYYC  Calgary-STL Lambert-St Louis
11h 50m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
10:35 am - 11:44 amSTL  Lambert-St Louis-YYC Calgary
26h 09m1 stop Atlanta Hartsfield-Jackson
$336Multiple Airlines
Tue, Oct 6 - Mon, Oct 26
WestJet Logo
10:15 am - 11:16 pmYYC  Calgary-STL Lambert-St Louis
12h 01m1 stop Minneapolis St Paul
WestJet Logo
11:21 am - 5:00 pmSTL  Lambert-St Louis-YYC Calgary
6h 39m1 stop Minneapolis St Paul
$353WestJet
Mon, Sep 21 - Wed, Sep 23
WestJet Logo
7:00 am - 4:47 pmYYC  Calgary-STL Lambert-St Louis
8h 47m2 stops Edmonton Minneapolis St Paul
WestJet Logo
1:55 pm - 8:15 pmSTL  Lambert-St Louis-YYC Calgary
7h 20m1 stop Detroit Metropolitan Wayne County
$354WestJet
Sat, Sep 26 - Tue, Sep 29
WestJet Logo
2:15 pm - 11:16 pmYYC  Calgary-STL Lambert-St Louis
8h 01m1 stop Minneapolis St Paul
WestJet Logo
6:15 am - 8:42 pmSTL  Lambert-St Louis-YYC Calgary
15h 27m1 stop Minneapolis St Paul
$354WestJet
Tue, Sep 15 - Fri, Sep 18
WestJet Logo
12:20 am - 4:32 pmYYC  Calgary-STL Lambert-St Louis
15h 12m1 stop Atlanta Hartsfield-Jackson
WestJet Logo
1:55 pm - 8:15 pmSTL  Lambert-St Louis-YYC Calgary
7h 20m1 stop Detroit Metropolitan Wayne County
$354WestJet
Fri, Sep 25 - Tue, Sep 29
WestJet Logo
10:15 am - 11:26 pmYYC  Calgary-STL Lambert-St Louis
12h 11m1 stop Minneapolis St Paul
WestJet Logo
12:52 pm - 11:00 amSTL  Lambert-St Louis-YYC Calgary
23h 08m1 stop Atlanta Hartsfield-Jackson
$355WestJet
Sun, Aug 23 - Tue, Aug 25
WestJet Logo
7:00 am - 11:42 pmYYC  Calgary-STL Lambert-St Louis
15h 42m1 stop Atlanta Hartsfield-Jackson
WestJet Logo
6:15 am - 3:15 pmSTL  Lambert-St Louis-YYC Calgary
10h 00m2 stops Minneapolis St Paul Vancouver Intl
$355WestJet
Thu, Sep 10 - Wed, Sep 16

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United Airlines flights from Alberta to St. Louis

Our best United Airlines deals on Alberta to St. Louis flight tickets
United Airlines
Oct 21
YEG6:00 amEdmonton
13h 36m
1 stop
STL8:36 pmLambert-St Louis
Oct 23
STL9:00 amLambert-St Louis
14h 04m
1 stop
YEG10:04 pmEdmonton
$671
United Airlines
Oct 21
YEG6:00 amEdmonton
9h 37m
1 stop
STL4:37 pmLambert-St Louis
Oct 23
STL9:00 amLambert-St Louis
14h 04m
1 stop
YEG10:04 pmEdmonton
$672
United Airlines
Oct 21
YEG6:00 amEdmonton
9h 37m
1 stop
STL4:37 pmLambert-St Louis
Oct 23
STL9:00 amLambert-St Louis
14h 04m
1 stop
YEG10:04 pmEdmonton
$674

WestJet flights from Alberta to St. Louis

Our best WestJet deals on Alberta to St. Louis flight tickets
WestJet
Sep 21
YYC10:15 amCalgary
12h 01m
1 stop
STL11:16 pmLambert-St Louis
Sep 23
STL11:21 amLambert-St Louis
6h 39m
1 stop
YYC5:00 pmCalgary
$353
WestJet
Sep 26
YYC7:00 amCalgary
8h 47m
2 stops
STL4:47 pmLambert-St Louis
Sep 29
STL1:55 pmLambert-St Louis
7h 20m
1 stop
YYC8:15 pmCalgary
$354
WestJet
Aug 23
YYC10:15 amCalgary
12h 11m
1 stop
STL11:26 pmLambert-St Louis
Aug 25
STL12:52 pmLambert-St Louis
23h 08m
1 stop
YYC11:00 amCalgary
$355

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 August 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

Cheapest round-trip

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Wed 10/14

7:00 am-9:40 am

1 stop25h 40m

Lambert-St Louis

Sun 10/18

10:35 am-11:00 am

1 stop25h 25m

$314

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Wed 10/14

7:00 am-9:40 am

1 stop25h 40m

Lambert-St Louis

Fri 10/23

10:35 am-11:00 am

1 stop25h 25m

$327

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Wed 10/14

7:00 am-9:40 am

1 stop25h 40m

Lambert-St Louis

Wed 10/28

10:35 am-7:14 pm

1 stop9h 39m

$334

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Tue 10/6

12:20 am-1:10 pm

1 stop11h 50m

Lambert-St Louis

Mon 10/26

10:35 am-11:44 am

1 stop26h 09m

$336

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Mon 9/21

10:15 am-11:16 pm

1 stop12h 01m

Lambert-St Louis

Wed 9/23

11:21 am-5:00 pm

1 stop6h 39m

$353
Quickest round-trip

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Sat 9/26

7:00 am-4:47 pm

2 stops8h 47m

Lambert-St Louis

Tue 9/29

1:55 pm-8:15 pm

1 stop7h 20m

$354

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Tue 9/15

2:15 pm-11:16 pm

1 stop8h 01m

Lambert-St Louis

Fri 9/18

6:15 am-8:42 pm

1 stop15h 27m

$354

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Fri 9/25

12:20 am-4:32 pm

1 stop15h 12m

Lambert-St Louis

Tue 9/29

1:55 pm-8:15 pm

1 stop7h 20m

$354

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Sun 8/23

10:15 am-11:26 pm

1 stop12h 11m

Lambert-St Louis

Tue 8/25

12:52 pm-11:00 am

1 stop23h 08m

$355

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Thu 9/10

7:00 am-11:42 pm

1 stop15h 42m

Lambert-St Louis

Wed 9/16

6:15 am-3:15 pm

2 stops10h 00m

$355

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, May 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 $320. The month of March is another great option to travel to St. Louis, with average flight prices from Alberta averaging around $393.

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 00m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 9h 00m
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 are refreshed on a daily basis.

  • 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.

Traveling to a place near St. Louis?

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