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St. Louis

$134+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/16. 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 12/196:30 amYYC - STL
1 stop12h 00mAmerican Airlines
Fri 1/25:16 amSTL - YYC
1 stop7h 23mAmerican Airlines
Deal found 12/16$555
This FlightHub deal was found by Cheapflights users on 12/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:30 amYYC - STL
1 stop14h 46mWestJet
Fri 1/26:05 amSTL - YYC
2 stops31h 45mWestJet
Deal found 12/15$569
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/226:30 amYYC - STL
1 stop7h 30mAmerican Airlines
Fri 1/25:16 amSTL - YYC
1 stop7h 23mAmerican Airlines
Deal found 12/15$600
This WestJet deal was found by Cheapflights users on 12/16. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:15 pmYYC - STL
2 stops10h 12mWestJet
Fri 1/211:59 amSTL - YYC
2 stops34h 03mWestJet
Deal found 12/16$677
This Air Canada deal was found by Cheapflights users on 12/16. 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.
Wed 12/176:00 amYEG - STL
1 stop13h 57mAir Canada
Tue 12/234:05 pmSTL - YEG
1 stop8h 13mAir Canada
Deal found 12/16$827
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:50 pmYEG - STL
2 stops25h 39mWestJet
Tue 12/236:05 amSTL - YEG
2 stops19h 39mWestJet
Deal found 12/16$912
This Air Canada deal was found by Cheapflights users on 12/17. 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.
Wed 12/173:17 pmYEG - STL
1 stop21h 03mMultiple Airlines
Tue 12/239:00 amSTL - YEG
1 stop6h 14mMultiple Airlines
Deal found 12/17$1,433
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/173:17 pmYEG - STL
3 stops20h 10mUnited Airlines
Tue 12/236:30 amSTL - YEG
2 stops12h 54mUnited Airlines
Deal found 12/17$1,516

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$217
(Kiwi.com)

One-way from

$134
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$469
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 December 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 December 18, 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

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 1/9

12:50 pm-10:33 pm

2 stops32h 43m

Lambert-St Louis

Fri 1/16

8:32 pm-12:11 pm

1 stop16h 39m

$306

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 1/31

7:35 pm-12:08 pm

1 stop15h 33m

Lambert-St Louis

Sat 2/7

8:22 pm-11:43 am

1 stop16h 21m

$310

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/22

6:30 am-4:45 pm

1 stop9h 15m

Lambert-St Louis

Mon 1/26

5:25 pm-8:54 pm

1 stop28h 29m

$389

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 1/30

9:15 am-10:43 am

1 stop24h 28m

Lambert-St Louis

Mon 2/2

6:10 am-3:55 pm

1 stop10h 45m

$444

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/22

6:15 am-4:55 pm

1 stop9h 40m

Lambert-St Louis

Mon 1/26

9:57 am-8:59 pm

2 stops12h 02m

$496

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 1/31

6:30 am-8:43 pm

2 stops13h 13m

Lambert-St Louis

Sat 2/7

9:59 am-11:02 pm

2 stops14h 03m

$501

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 1/9

9:15 am-11:25 pm

1 stop13h 10m

Lambert-St Louis

Fri 1/16

6:10 am-3:59 pm

1 stop10h 49m

$524

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 1/29

12:05 am-8:43 pm

2 stops19h 38m

Lambert-St Louis

Mon 2/2

6:10 am-12:39 am

2 stops19h 29m

$534

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 1/22

7:00 am-4:45 pm

2 stops8h 45m

Lambert-St Louis

Mon 1/26

6:10 am-2:00 pm

2 stops8h 50m

$550

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 1/24

12:30 am-6:51 am

1 stop29h 21m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 17 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 December 18, 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 $389, Delta can have you in St. Louis from Alberta in 9h 15m. There are 1427 mi between Alberta and St. Louis.

  • 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
Swansea
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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$309Average$516FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$422Average$509FlexibilityNo cancel feeOn-time69%

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