HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$131+ Cheap flights from Alberta to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Alberta to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Alberta to St. Louis

Keep the following information in mind while searching for Alberta to St. Louis flight deals. Data was last updated September 15, 2025.

Round-trip from

$261
(American Airlines)

One-way from

$131
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$469
From Alberta to Lambert-St Louis
Search Deals
One-way flight from Alberta to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Alberta to St. Louis

Cheapest flights from Alberta to St. Louis
Explore the most affordable flight options available from Alberta to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/101:29 pmYYC - STL
1 stop17h 40mAmerican Airlines
Mon 10/134:34 pmSTL - YYC
1 stop21h 00mAmerican Airlines
Deal found 9/13$261
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:17 pmYEG - STL
2 stops18h 32mUnited Airlines
Wed 10/226:30 amSTL - YEG
2 stops16h 34mUnited Airlines
Deal found 9/15$302
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:30 amYYC - STL
1 stop8h 46mMultiple Airlines
Sun 10/265:15 pmSTL - YYC
2 stops25h 00mMultiple Airlines
Deal found 9/13$310
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:55 amYYC - STL
1 stop23h 11mMultiple Airlines
Wed 10/17:55 pmSTL - YYC
2 stops22h 22mMultiple Airlines
Deal found 9/15$329
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:45 amYYC - STL
1 stop13h 08mAmerican Airlines
Tue 10/218:04 pmSTL - YYC
1 stop17h 30mAmerican Airlines
Deal found 9/15$332
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:55 amYYC - STL
1 stop23h 11mMultiple Airlines
Fri 10/37:55 pmSTL - YYC
2 stops25h 05mMultiple Airlines
Deal found 9/14$343
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/912:30 amYYC - STL
1 stop9h 07mMultiple Airlines
Mon 10/139:59 pmSTL - YYC
2 stops23h 01mMultiple Airlines
Deal found 9/13$370
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:00 amYEG - STL
2 stops26h 06mMultiple Airlines
Tue 10/146:33 amSTL - YEG
1 stop15h 30mMultiple Airlines
Deal found 9/15$379
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:17 pmYEG - STL
2 stops22h 08mUnited Airlines
Mon 11/175:24 pmSTL - YEG
2 stops21h 50mUnited Airlines
Deal found 9/14$408
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:40 amYYC - STL
1 stop15h 34mMultiple Airlines
Tue 9/307:55 pmSTL - YYC
2 stops41h 17mMultiple Airlines
Deal found 9/15$412
This United deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:17 pmYEG - STL
2 stops22h 08mMultiple Airlines
Mon 11/174:05 pmSTL - YEG
1 stop8h 08mMultiple Airlines
Deal found 9/14$451
This Expedia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1412:05 amYEG - STL
2 stops14h 24mMultiple Airlines
Wed 10/226:33 amSTL - YEG
1 stop11h 01mMultiple Airlines
Deal found 9/15$500

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Alberta to St. Louis that are best for you.

Fly from

Alberta

Fly to

St. Louis

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 10/10

1:29 pm-8:09 am

1 stop17h 40m

Lambert-St Louis

Mon 10/13

4:34 pm-12:34 pm

1 stop21h 00m

$261

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Wed 10/15

3:17 pm-10:49 am

2 stops18h 32m

Lambert-St Louis

Wed 10/22

6:30 am-10:04 pm

2 stops16h 34m

$302

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 10/23

12:30 am-10:16 am

1 stop8h 46m

Lambert-St Louis

Sun 10/26

5:15 pm-5:15 pm

2 stops25h 00m

$310

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sun 9/28

8:55 am-9:06 am

1 stop23h 11m

Lambert-St Louis

Wed 10/1

7:55 pm-5:17 pm

2 stops22h 22m

$329

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 10/14

6:45 am-8:53 pm

1 stop13h 08m

Lambert-St Louis

Tue 10/21

8:04 pm-12:34 pm

1 stop17h 30m

$332

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 10/9

12:30 am-10:37 am

1 stop9h 07m

Lambert-St Louis

Mon 10/13

9:59 pm-8:00 pm

2 stops23h 01m

$370

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 11/14

3:17 pm-2:25 pm

2 stops22h 08m

Lambert-St Louis

Mon 11/17

5:24 pm-2:14 pm

2 stops21h 50m

$408

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 9/26

6:40 am-11:14 pm

1 stop15h 34m

Lambert-St Louis

Tue 9/30

7:55 pm-12:12 pm

2 stops41h 17m

$412

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 10/14

7:00 pm-12:03 am

1 stop28h 03m

Lambert-St Louis

Tue 10/21

7:52 pm-10:10 pm

2 stops27h 18m

$415

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 11/14

3:17 pm-2:25 pm

2 stops22h 08m

Lambert-St Louis

Mon 11/17

4:05 pm-11:13 pm

1 stop8h 08m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 28 results
1
2
3

Best time to book a flight from Alberta to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Alberta with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Alberta to St. Louis

What is the cheapest month to book a flight from Alberta to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Alberta to St. Louis (average of $311). Flying from Alberta to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AB to STL?

Find hourly flight availability from Alberta to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Alberta to St. Louis as you normally would.

How much does it cost to fly round-trip from Alberta to St. Louis?

Related info for your journey

Find useful and relevant information for your journey from Alberta to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Alberta?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Alberta to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

  • How long is the flight from Alberta to St. Louis?

    For as low as $261, American Airlines can have you in St. Louis from Alberta in 17h 40m. There are 1427 mi between Alberta and St. Louis. This flight may include one or multiple stops.

  • Can I find deals for flights from Alberta to St. Louis that include hotel bookings?

    Yes. In addition to deals on Alberta to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Alberta to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alberta to St. Louis.

  • Can I find deals for business class flights from Alberta to St. Louis?

    Yes. Cheapflights offers flight deals from Alberta to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Alberta to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Alberta to St. Louis (average of $311). Flying from Alberta to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Alberta to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to St. Louis flights
Pearson Intl to Kansas City flights
Vancouver Intl to St. Louis flights
Pierre Elliott Trudeau Intl to Kansas City flights
Pierre Elliott Trudeau Intl to St. Louis flights
Vancouver Intl to Kansas City flights
Calgary to Kansas City flights
Winnipeg to Kansas City flights
Ottawa to Kansas City flights
Calgary to St. Louis flights
Winnipeg to St. Louis flights
Edmonton to Kansas City flights
Pearson Intl to Springfield flights
Edmonton to St. Louis flights
Saskatoon to Kansas City flights
Halifax to St. Louis flights
Ottawa to St. Louis flights
Halifax to Kansas City flights
Pearson Intl to Joplin flights
Vancouver Intl to Springfield flights
Kelowna to Kansas City flights
Charlottetown to St. Louis flights
Victoria to St. Louis flights

Top airline flying from Alberta to St. Louis

Discover the top airline that operate flights from Alberta to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$309Average$516FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.