How long does it take to fly to St. Louis?

Flight times from Alberta to St. Louis vary, but if you’re flying out of Calgary and flying into St. Louis (one of the most popular routes), then the duration is 6h 01m on average. Another popular route from Alberta to St. Louis is flying from Edmonton to St. Louis, which will take roughly 6h 16m. Keep in mind that layovers or delays could extend your travel time.

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?

As of December 2025, there is 1 operator available to choose from 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.

$156 Cheap Flights from Alberta to St. Louis in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Alberta to St. Louis

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 11:33 pm

YYC

STL

13h 33m2 stops

8:17 pm - 7:09 pm

STL

YYC

23h 52m1 stop

$269Multiple Airlines

Wed, Feb 4 - Wed, Feb 18

12:30 am - 6:51 am

YYC

STL

29h 21m1 stop

5:42 pm - 11:19 am

STL

YYC

18h 37m1 stop

$281Multiple Airlines

Thu, Jan 22 - Fri, Jan 30

12:30 am - 6:51 am

YYC

STL

29h 21m1 stop

8:22 pm - 7:09 pm

STL

YYC

23h 47m1 stop

$283Multiple Airlines

Sat, Jan 17 - Wed, Jan 21

2:13 pm - 8:58 pm

YYC

STL

5h 45m1 stop

6:30 am - 11:35 am

STL

YYC

6h 05m1 stop

$399United Airlines

Thu, Jan 22 - Mon, Jan 26

7:00 am - 3:24 pm

YYC

STL

7h 24m1 stop

4:05 pm - 8:28 am

STL

YYC

17h 23m1 stop

$415Air Canada

Tue, Apr 21 - Sun, Apr 26

6:30 am - 4:14 pm

YYC

STL

8h 44m1 stop

1:35 pm - 12:48 pm

STL

YYC

24h 13m1 stop

$426American Airlines

Thu, Jan 8 - Thu, Jan 22

6:30 am - 8:43 pm

YYC

STL

13h 13m2 stops

2:38 pm - 11:02 pm

STL

YYC

9h 24m1 stop

$431Delta

Thu, Jan 8 - Thu, Jan 22

1:25 pm - 12:22 am

YYC

STL

9h 57m2 stops

6:10 am - 6:25 pm

STL

YYC

13h 15m2 stops

$453Delta

Tue, Apr 21 - Sun, Apr 26

6:00 am - 1:16 pm

YEG

STL

6h 16m1 stop

8:45 am - 10:19 pm

STL

YEG

14h 34m1 stop

$477United Airlines

Sat, Jan 17 - Wed, Jan 21

6:00 am - 3:29 pm

YEG

STL

8h 29m1 stop

4:05 pm - 11:18 pm

STL

YEG

8h 13m1 stop

$485Air Canada

Fri, Jan 9 - Sun, Mar 15

American Airlines flights from Alberta to St. Louis

Our best American Airlines deals on Alberta to St. Louis flight tickets

American Airlines

Jan 8

YYC6:30 amCalgary

8h 44m

1 stop

STL4:14 pmLambert-St Louis

Jan 22

STL1:35 pmLambert-St Louis

24h 13m

1 stop

YYC12:48 pmCalgary

$426

Find similar

American Airlines

Jan 18

YYC7:00 amCalgary

12h 32m

2 stops

STL8:32 pmLambert-St Louis

Jan 21

STL6:00 amLambert-St Louis

16h 58m

2 stops

YYC9:58 pmCalgary

$500

Find similar

American Airlines

Jan 9

YEG7:00 amEdmonton

12h 32m

2 stops

STL8:32 pmLambert-St Louis

Mar 15

STL6:00 amLambert-St Louis

10h 36m

2 stops

YEG3:36 pmEdmonton

$661

Find similar

Alaska Airlines flights from Alberta to St. Louis

Our best Alaska Airlines deals on Alberta to St. Louis flight tickets

Alaska Airlines

Jan 23

YYC7:00 pmCalgary

27h 59m

3 stops

STL11:59 pmLambert-St Louis

Jan 30

STL7:04 amLambert-St Louis

12h 06m

2 stops

YYC6:10 pmCalgary

$1,075

Find similar

Alaska Airlines

Mar 23

YYC7:00 pmCalgary

13h 02m

2 stops

STL9:02 amLambert-St Louis

Mar 27

STL4:20 pmLambert-St Louis

26h 50m

1 stop

YYC6:10 pmCalgary

$1,333

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 2/4

9:00 am-11:33 pm

2 stops13h 33m

Lambert-St Louis

Wed 2/18

8:17 pm-7:09 pm

1 stop23h 52m

$269

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/22

12:30 am-6:51 am

1 stop29h 21m

Lambert-St Louis

Fri 1/30

5:42 pm-11:19 am

1 stop18h 37m

$281

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 1/17

12:30 am-6:51 am

1 stop29h 21m

Lambert-St Louis

Wed 1/21

8:22 pm-7:09 pm

1 stop23h 47m

$283

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/22

2:13 pm-8:58 pm

1 stop5h 45m

Lambert-St Louis

Mon 1/26

6:30 am-11:35 am

1 stop6h 05m

$399

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 4/21

7:00 am-3:24 pm

1 stop7h 24m

Lambert-St Louis

Sun 4/26

4:05 pm-8:28 am

1 stop17h 23m

$415

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/8

6:30 am-4:14 pm

1 stop8h 44m

Lambert-St Louis

Thu 1/22

1:35 pm-12:48 pm

1 stop24h 13m

$426

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/8

6:30 am-8:43 pm

2 stops13h 13m

Lambert-St Louis

Thu 1/22

2:38 pm-11:02 pm

1 stop9h 24m

$431

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 4/21

1:25 pm-12:22 am

2 stops9h 57m

Lambert-St Louis

Sun 4/26

6:10 am-6:25 pm

2 stops13h 15m

$453

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Sat 1/17

6:00 am-1:16 pm

1 stop6h 16m

Lambert-St Louis

Wed 1/21

8:45 am-10:19 pm

1 stop14h 34m

$477

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 1/9

6:00 am-3:29 pm

1 stop8h 29m

Lambert-St Louis

Sun 3/15

4:05 pm-11:18 pm

1 stop8h 13m

$485

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Other information

What is the cheapest month to fly to St. Louis?

In general, January 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 $304. The month of February is another great option to travel to St. Louis, with average flight prices from Alberta averaging around $413.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $296. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $541. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

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 01m
Direct flights	None

The fastest flight from Alberta to St. Louis takes 6h 01m

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?
As of December 2025, there is 1 operator available to choose from 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 Airlines	PriceFrom $422	Free Cancellation	Rating 7.4 9,113 reviews		Search United Airlines flights

St. Charles

Chesterfield

Hermann

Fairview Heights

Maryland Heights

O'Fallon

Florissant

Fenton

Collinsville

St. Peters

Wentzville

Alton

Farmington

Clayton

Glencoe

Eureka

Festus

Edwardsville

Litchfield

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.