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Cheap flights from Alberta to St. Louis from $170

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 6/9. 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
12:30 am - 5:37 pm
YYC
-
STL
16h 07m
1 stop
Multiple Airlines Logo
4:52 pm - 9:50 pm
STL
-
YYC
29h 58m
1 stop
$337Multiple Airlines
mer., juil. 8 - lun., juil. 13
Multiple Airlines Logo
12:30 am - 5:37 pm
YYC
-
STL
16h 07m
1 stop
Multiple Airlines Logo
4:52 pm - 3:15 pm
STL
-
YYC
23h 23m
2 stops
$346Multiple Airlines
mer., juil. 8 - lun., juil. 13
Multiple Airlines Logo
7:00 am - 8:55 am
YYC
-
STL
24h 55m
1 stop
Multiple Airlines Logo
5:27 pm - 6:10 pm
STL
-
YYC
25h 43m
2 stops
$384Multiple Airlines
ven., juin 5 - lun., juin 8
Delta Logo
7:45 am - 2:31 pm
YYC
-
STL
5h 46m
1 stop
Delta Logo
2:15 pm - 11:13 pm
STL
-
YYC
9h 58m
1 stop
$397Delta
sam., oct. 10 - lun., oct. 19
Delta Logo
7:15 am - 6:56 pm
YYC
-
STL
10h 41m
1 stop
Delta Logo
2:15 pm - 11:13 pm
STL
-
YYC
9h 58m
1 stop
$398Delta
ven., oct. 23 - dim., oct. 25
Air Canada Logo
6:30 am - 6:41 pm
YYC
-
STL
11h 11m
2 stops
Air Canada Logo
12:10 pm - 9:27 pm
STL
-
YYC
10h 17m
1 stop
$406Air Canada
mer., oct. 14 - lun., oct. 19
American Airlines Logo
4:15 pm - 11:58 pm
YYC
-
STL
6h 43m
1 stop
American Airlines Logo
2:32 pm - 11:49 pm
STL
-
YYC
10h 17m
1 stop
$409American Airlines
ven., juil. 10 - mar., juil. 14
United Airlines Logo
9:30 am - 8:38 pm
YYC
-
STL
10h 08m
1 stop
United Airlines Logo
1:36 pm - 6:30 pm
STL
-
YYC
5h 54m
1 stop
$410United Airlines
ven., août 28 - lun., août 31
United Airlines Logo
3:17 pm - 11:57 pm
YEG
-
STL
7h 40m
1 stop
United Airlines Logo
4:48 pm - 10:04 pm
STL
-
YEG
6h 16m
1 stop
$479United Airlines
jeu., juin 11 - mar., juin 16
Air Canada Logo
9:30 am - 6:42 pm
YEG
-
STL
8h 12m
1 stop
Air Canada Logo
8:55 am - 5:01 pm
STL
-
YEG
9h 06m
1 stop
$494Air Canada
lun., sept. 7 - mer., sept. 16

Alaska Airlines flights from Alberta to St. Louis

Our best Alaska Airlines deals on Alberta to St. Louis flight tickets
Alaska Airlines
Jun 5
YEG11:46 amEdmonton
27h 51m
2 stops
STL4:37 pmLambert-St Louis
Jun 8
STL7:41 pmLambert-St Louis
16h 15m
1 stop
YEG10:56 amEdmonton
$515
Alaska Airlines
Jun 5
YEG11:46 amEdmonton
11h 08m
1 stop
STL11:54 pmLambert-St Louis
Jun 8
STL7:41 pmLambert-St Louis
16h 15m
1 stop
YEG10:56 amEdmonton
$516
Alaska Airlines
Jun 5
YEG11:46 amEdmonton
27h 51m
2 stops
STL4:37 pmLambert-St Louis
Jun 8
STL4:12 pmLambert-St Louis
19h 44m
1 stop
YEG10:56 amEdmonton
$585

Delta flights from Alberta to St. Louis

Our best Delta deals on Alberta to St. Louis flight tickets
Delta
Oct 10
YYC7:45 amCalgary
5h 46m
1 stop
STL2:31 pmLambert-St Louis
Oct 19
STL2:15 pmLambert-St Louis
9h 58m
1 stop
YYC11:13 pmCalgary
$397
Delta
Oct 23
YYC7:15 amCalgary
10h 41m
1 stop
STL6:56 pmLambert-St Louis
Oct 25
STL2:15 pmLambert-St Louis
9h 58m
1 stop
YYC11:13 pmCalgary
$398
Delta
Oct 12
YYC7:45 amCalgary
14h 33m
1 stop
STL11:18 pmLambert-St Louis
Oct 19
STL2:15 pmLambert-St Louis
9h 58m
1 stop
YYC11:13 pmCalgary
$423

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 mai 15, 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

mer. 7/8

12:30 am-5:37 pm

1 stop16h 07m

Lambert-St Louis

lun. 7/13

4:52 pm-9:50 pm

1 stop29h 58m

$337

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

mer. 7/8

12:30 am-5:37 pm

1 stop16h 07m

Lambert-St Louis

lun. 7/13

4:52 pm-3:15 pm

2 stops23h 23m

$346

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

ven. 6/5

7:00 am-8:55 am

1 stop24h 55m

Lambert-St Louis

lun. 6/8

5:27 pm-6:10 pm

2 stops25h 43m

$384

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

sam. 10/10

7:45 am-2:31 pm

1 stop5h 46m

Lambert-St Louis

lun. 10/19

2:15 pm-11:13 pm

1 stop9h 58m

$397

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

ven. 10/23

7:15 am-6:56 pm

1 stop10h 41m

Lambert-St Louis

dim. 10/25

2:15 pm-11:13 pm

1 stop9h 58m

$398

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

mer. 10/14

6:30 am-6:41 pm

2 stops11h 11m

Lambert-St Louis

lun. 10/19

12:10 pm-9:27 pm

1 stop10h 17m

$406

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

ven. 7/10

4:15 pm-11:58 pm

1 stop6h 43m

Lambert-St Louis

mar. 7/14

2:32 pm-11:49 pm

1 stop10h 17m

$409

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

ven. 8/28

9:30 am-8:38 pm

1 stop10h 08m

Lambert-St Louis

lun. 8/31

1:36 pm-6:30 pm

1 stop5h 54m

$410
Quickest round-trip

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

jeu. 6/11

3:17 pm-11:57 pm

1 stop7h 40m

Lambert-St Louis

mar. 6/16

4:48 pm-10:04 pm

1 stop6h 16m

$479

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

lun. 9/7

9:30 am-6:42 pm

1 stop8h 12m

Lambert-St Louis

mer. 9/16

8:55 am-5:01 pm

1 stop9h 06m

$494

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, August 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 $189. The month of July is another great option to travel to St. Louis, with average flight prices from Alberta averaging around $229.

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 52m

Direct flights

None
The fastest flight from Alberta to St. Louis takes 6h 52m
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
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
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.

An easier way to manage your St. Louis trip

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