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 5h 24m on average. Another popular route from Alberta to St. Louis is flying from Edmonton to St. Louis, which will take roughly 6h 20m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Alberta to Lambert-St Louis?

United Airlines and WestJet are the most popular carriers operating from Alberta to Lambert-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 many operators does momondo search for flights from Alberta to Lambert-St Louis Airport?

As of November 2025, there are 2 operators 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.

$190 Cheap Flights from Alberta to St. Louis in 2025/26

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Find the cheapest flights from Alberta to St. Louis

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:35 pm - 4:49 pmYYC-STL

20h 14m1 stop

5:06 pm - 9:51 pmSTL-YYC

29h 45m2 stops

$333Multiple Airlines

Find Deal

Thu, Jan 8 - Tue, Jan 13

7:35 pm - 4:49 pmYYC-STL

20h 14m1 stop

2:50 pm - 5:50 pmSTL-YYC

28h 00m1 stop

$392Multiple Airlines

Find Deal

Thu, Jan 8 - Tue, Jan 13

6:15 am - 12:39 pmYYC-STL

5h 24m1 stop

1:35 pm - 9:53 pmSTL-YYC

9h 18m1 stop

$428United Airlines

Find Deal

Sat, Dec 6 - Sat, Dec 13

6:20 am - 11:43 pmYYC-STL

16h 23m1 stop

4:30 pm - 9:38 pmSTL-YYC

6h 08m1 stop

$487United Airlines

Find Deal

Tue, May 5 - Wed, May 6

7:45 am - 6:57 pmYYC-STL

10h 12m1 stop

6:00 am - 1:53 pmSTL-YYC

8h 53m1 stop

$508Delta

Find Deal

Wed, Nov 26 - Mon, Dec 1

7:45 am - 4:49 pmYYC-STL

32h 04m2 stops

5:17 pm - 11:44 amSTL-YYC

19h 27m1 stop

$516WestJet

Find Deal

Wed, Nov 26 - Mon, Dec 1

7:00 am - 4:47 pmYYC-STL

8h 47m2 stops

6:10 am - 4:15 pmSTL-YYC

11h 05m2 stops

$517WestJet

Find Deal

Thu, Jan 8 - Tue, Jan 13

12:25 am - 3:16 pmYYC-STL

13h 51m1 stop

1:30 pm - 9:30 pmSTL-YYC

9h 00m1 stop

$524Air Canada

Find Deal

Mon, May 4 - Wed, May 6

12:30 am - 10:45 amYYC-STL

9h 15m1 stop

1:30 pm - 8:00 pmSTL-YYC

7h 30m1 stop

$540Delta

Find Deal

Mon, May 4 - Wed, May 6

6:00 am - 3:29 pmYEG-STL

8h 29m1 stop

9:00 am - 10:15 pmSTL-YEG

14h 15m1 stop

$632Air Canada

Find Deal

Thu, Dec 25 - Thu, Jan 1

United Airlines flights from Alberta to St. Louis

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

United Airlines

Dec 6

YYC6:15 amCalgary

5h 24m

1 stop

STL12:39 pmLambert-St Louis

Dec 13

STL1:35 pmLambert-St Louis

9h 18m

1 stop

YYC9:53 pmCalgary

$428

Find similar

United Airlines

May 5

YYC6:20 amCalgary

16h 23m

1 stop

STL11:43 pmLambert-St Louis

May 6

STL4:30 pmLambert-St Louis

6h 08m

1 stop

YYC9:38 pmCalgary

$487

Find similar

United Airlines

May 5

YYC12:30 pmCalgary

7h 34m

1 stop

STL9:04 pmLambert-St Louis

May 6

STL4:30 pmLambert-St Louis

6h 08m

1 stop

YYC9:38 pmCalgary

$488

Find similar

Delta flights from Alberta to St. Louis

Our best Delta deals on Alberta to St. Louis flight tickets

Delta

Nov 26

YYC7:45 amCalgary

10h 12m

1 stop

STL6:57 pmLambert-St Louis

Dec 1

STL6:00 amLambert-St Louis

8h 53m

1 stop

YYC1:53 pmCalgary

$508

Find similar

Delta

May 4

YYC12:30 amCalgary

9h 15m

1 stop

STL10:45 amLambert-St Louis

May 6

STL1:30 pmLambert-St Louis

7h 30m

1 stop

YYC8:00 pmCalgary

$540

Find similar

Delta

Mar 27

YEG12:45 amEdmonton

7h 19m

1 stop

STL9:04 amLambert-St Louis

Apr 4

STL7:30 amLambert-St Louis

10h 34m

2 stops

YEG5:04 pmEdmonton

$572

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/8

7:35 pm-4:49 pm

1 stop20h 14m

Lambert-St Louis

Tue 1/13

5:06 pm-9:51 pm

2 stops29h 45m

$333

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/8

7:35 pm-4:49 pm

1 stop20h 14m

Lambert-St Louis

Tue 1/13

2:50 pm-5:50 pm

1 stop28h 00m

$392

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 12/6

6:15 am-12:39 pm

1 stop5h 24m

Lambert-St Louis

Sat 12/13

1:35 pm-9:53 pm

1 stop9h 18m

$428

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 5/5

6:20 am-11:43 pm

1 stop16h 23m

Lambert-St Louis

Wed 5/6

4:30 pm-9:38 pm

1 stop6h 08m

$487

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 11/26

7:45 am-6:57 pm

1 stop10h 12m

Lambert-St Louis

Mon 12/1

6:00 am-1:53 pm

1 stop8h 53m

$508

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 11/26

7:45 am-4:49 pm

2 stops32h 04m

Lambert-St Louis

Mon 12/1

5:17 pm-11:44 am

1 stop19h 27m

$516

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/8

7:00 am-4:47 pm

2 stops8h 47m

Lambert-St Louis

Tue 1/13

6:10 am-4:15 pm

2 stops11h 05m

$517

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 5/4

12:25 am-3:16 pm

1 stop13h 51m

Lambert-St Louis

Wed 5/6

1:30 pm-9:30 pm

1 stop9h 00m

$524

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 5/4

12:30 am-10:45 am

1 stop9h 15m

Lambert-St Louis

Wed 5/6

1:30 pm-8:00 pm

1 stop7h 30m

$540

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 12/25

6:00 am-3:29 pm

1 stop8h 29m

Lambert-St Louis

Thu 1/1

9:00 am-10:15 pm

1 stop14h 15m

$632

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

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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 $296. 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

Direct flights	None

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 November 2025, there are 2 operators 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
American Airlines	PriceFrom $309	Free Cancellation	Rating 7.2 11,045 reviews		Search American Airlines flights
United Airlines	PriceFrom $422	Free Cancellation	Rating 7.4 9,012 reviews		Search United Airlines flights

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O'Fallon

Wentzville

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Alton

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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.