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St. Louis

$136+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 12/221:31 pmYYC - STL
1 stop22h 46mAmerican Airlines
Tue 12/308:01 pmSTL - YYC
1 stop17h 50mAmerican Airlines
Deal found 10/30$249
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:00 amYEG - STL
1 stop8h 29mAir Canada
Tue 12/24:05 pmSTL - YEG
1 stop8h 10mAir Canada
Deal found 10/28$338
This American Airlines deal was found by Cheapflights users on 10/29. 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 12/261:31 pmYYC - STL
1 stop18h 04mAmerican Airlines
Tue 12/308:01 pmSTL - YYC
1 stop17h 50mAmerican Airlines
Deal found 10/29$388
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/181:31 pmYYC - STL
1 stop9h 14mAmerican Airlines
Mon 12/225:16 pmSTL - YYC
1 stop20h 32mAmerican Airlines
Deal found 10/28$394
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Mon 11/2412:45 amYEG - STL
1 stop12h 44mMultiple Airlines
Tue 12/23:30 pmSTL - YEG
2 stops34h 14mMultiple Airlines
Deal found 10/28$404
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Wed 11/267:35 pmYYC - STL
1 stop24h 34mMultiple Airlines
Mon 12/17:03 pmSTL - YYC
2 stops41h 41mMultiple Airlines
Deal found 10/29$418
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:00 amYEG - STL
2 stops13h 23mDelta
Tue 12/212:49 pmSTL - YEG
2 stops12h 55mDelta
Deal found 10/28$423
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Sat 12/1312:45 amYEG - STL
1 stop8h 02mMultiple Airlines
Sun 12/2110:10 pmSTL - YEG
2 stops35h 32mMultiple Airlines
Deal found 10/30$429
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/187:30 amYYC - STL
2 stops33h 43mMultiple Airlines
Mon 12/2210:10 pmSTL - YYC
1 stop14h 51mMultiple Airlines
Deal found 10/28$441
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Mon 12/229:00 amYYC - STL
2 stops24h 56mMultiple Airlines
Tue 12/3010:48 amSTL - YYC
1 stop25h 56mMultiple Airlines
Deal found 10/30$444
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/1312:30 amYYC - STL
1 stop8h 17mMultiple Airlines
Sun 12/2110:10 pmSTL - YYC
2 stops18h 05mMultiple Airlines
Deal found 10/29$448
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:07 pmYYC - STL
1 stop7h 16mDelta
Tue 12/212:49 pmSTL - YYC
2 stops11h 24mDelta
Deal found 10/30$462

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(American Airlines)

One-way from

$136
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$459
Provider with most accurate pricing for Calgary-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Calgary-Lambert-St Louis flights.
Search Deals
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. 8% potential increase in price ($40 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 October 2025
Search Deals

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 October 30, 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

Mon 12/22

1:31 pm-1:17 pm

1 stop22h 46m

Lambert-St Louis

Tue 12/30

8:01 pm-12:51 pm

1 stop17h 50m

$249

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 11/25

6:00 am-3:29 pm

1 stop8h 29m

Lambert-St Louis

Tue 12/2

4:05 pm-11:15 pm

1 stop8h 10m

$338

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 4/28

6:00 am-3:24 pm

1 stop8h 24m

Lambert-St Louis

Wed 4/29

4:05 pm-10:59 pm

1 stop7h 54m

$339

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 12/26

1:31 pm-8:35 am

1 stop18h 04m

Lambert-St Louis

Tue 12/30

8:01 pm-12:51 pm

1 stop17h 50m

$388

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 12/18

1:31 pm-11:45 pm

1 stop9h 14m

Lambert-St Louis

Mon 12/22

5:16 pm-12:48 pm

1 stop20h 32m

$394

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Mon 11/24

12:45 am-2:29 pm

1 stop12h 44m

Lambert-St Louis

Tue 12/2

3:30 pm-12:44 am

2 stops34h 14m

$408

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 11/26

7:35 pm-9:09 pm

1 stop24h 34m

Lambert-St Louis

Mon 12/1

7:03 pm-11:44 am

2 stops41h 41m

$418

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 11/25

9:00 am-11:23 pm

2 stops13h 23m

Lambert-St Louis

Tue 12/2

12:49 pm-12:44 am

2 stops12h 55m

$423

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 12/13

12:30 am-9:47 am

1 stop8h 17m

Lambert-St Louis

Sun 12/21

10:10 pm-3:15 pm

2 stops18h 05m

$448

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 11/28

3:07 pm-11:23 pm

1 stop7h 16m

Lambert-St Louis

Tue 12/2

12:49 pm-11:13 pm

2 stops11h 24m

$462

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 14 results
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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, January is the cheapest month in which you can book a flight from Alberta to St. Louis (average of $244). Flying from Alberta to St. Louis in June is currently the most expensive (average of $456). 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 October 30, 2025.

It’s typically best to fly out from Alberta to St. Louis in the morning. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.

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 $338, American Airlines can have you in St. Louis from Alberta in 8h 29m. There are 1487 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, January is the cheapest month in which you can book a flight from Alberta to St. Louis (average of $244). Flying from Alberta to St. Louis in June is currently the most expensive (average of $456). 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

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Alternative routes for Alberta to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Alberta to St. Louis

Discover the top 2 airlines 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$309Average$516FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$422Average$509FlexibilityNo cancel feeOn-time69%

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