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St. Louis

$180+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
août 4 — août 111
lun. 8/4
lun. 8/11
1 adult, Economy
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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 juillet 30, 2025.

Round-trip from

$305
(Kiwi.com)

One-way from

$180
(American Airlines)

Popular in

November

Cheapest in

January

Average price

$433
From Alberta to Lambert-St Louis
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One-way flight from Alberta to Lambert-St Louis
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Highest demand for flights based on searches. 5% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 juillet 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
jeu. 8/288:55 amYYC - STL
1 stop23h 16mMultiple Airlines
mar. 9/27:54 pmSTL - YYC
1 stop19h 51mMultiple Airlines
Deal found 7/30$305
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/1111:44 amYEG - STL
1 stop11h 15mAlaska Airlines
dim. 9/146:30 pmSTL - YEG
1 stop17h 19mAlaska Airlines
Deal found 7/30$375
This American Airlines deal was found by Cheapflights users on 7/30. 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.
mer. 8/276:29 amYYC - STL
1 stop10h 54mAmerican Airlines
lun. 9/16:00 amSTL - YYC
1 stop18h 29mAmerican Airlines
Deal found 7/30$383
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/2512:20 amYYC - STL
1 stop13h 58mAir Canada
dim. 9/281:30 pmSTL - YYC
1 stop10h 46mAir Canada
Deal found 7/29$407
This United Airlines deal was found by Cheapflights users on 7/27. 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.
mar. 8/263:17 pmYEG - STL
2 stops22h 16mUnited Airlines
mar. 9/27:04 pmSTL - YEG
2 stops20h 04mUnited Airlines
Deal found 7/27$409
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/126:15 amYEG - STL
1 stop8h 03mAir Canada
sam. 9/279:15 amSTL - YEG
2 stops11h 48mAir Canada
Deal found 7/29$424
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/136:15 amYYC - STL
1 stop14h 35mUnited Airlines
sam. 8/168:54 amSTL - YYC
1 stop13h 54mUnited Airlines
Deal found 7/30$429
This Delta deal was found by Cheapflights users on 7/30. 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.
mer. 8/136:40 amYYC - STL
1 stop6h 49mDelta
sam. 8/163:30 pmSTL - YYC
2 stops8h 27mDelta
Deal found 7/30$453
This Trip.com deal was found by Cheapflights users on 7/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/2512:05 amYEG - STL
2 stops11h 26mWestJet
mar. 9/25:30 pmSTL - YEG
1 stop23h 29mWestJet
Deal found 7/27$482
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/2912:30 amYYC - STL
1 stop8h 11mWestJet
mar. 8/195:11 pmSTL - YYC
1 stop19h 08mWestJet
Deal found 7/29$488
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/1112:05 amYEG - STL
2 stops13h 30mDelta
sam. 9/277:10 amSTL - YEG
2 stops15h 10mDelta
Deal found 7/29$665
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 8/76:30 pmYEG - STL
3 stops23h 11mMultiple Airlines
dim. 8/1010:47 amSTL - YEG
3 stops23h 38mMultiple Airlines
Deal found 7/29$899

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 juillet 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

jeu. 8/28

8:55 am-9:11 am

1 stop23h 16m

Lambert-St Louis

mar. 9/2

7:54 pm-2:45 pm

1 stop19h 51m

$305

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

jeu. 9/11

11:44 am-11:59 pm

1 stop11h 15m

Lambert-St Louis

dim. 9/14

6:30 pm-10:49 am

1 stop17h 19m

$375

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

mer. 8/27

6:29 am-6:23 pm

1 stop10h 54m

Lambert-St Louis

lun. 9/1

6:00 am-11:29 pm

1 stop18h 29m

$383

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

jeu. 9/25

12:20 am-3:18 pm

1 stop13h 58m

Lambert-St Louis

dim. 9/28

1:30 pm-11:16 pm

1 stop10h 46m

$407

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

mar. 8/26

10:15 am-2:33 pm

2 stops27h 18m

Lambert-St Louis

mar. 9/2

7:04 pm-4:25 pm

1 stop22h 21m

$409

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

ven. 9/12

6:15 am-3:18 pm

1 stop8h 03m

Lambert-St Louis

sam. 9/27

9:15 am-8:03 pm

2 stops11h 48m

$424

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

mer. 8/13

6:15 am-9:50 pm

1 stop14h 35m

Lambert-St Louis

sam. 8/16

8:54 am-9:48 pm

1 stop13h 54m

$429

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

mer. 8/13

6:40 am-2:29 pm

1 stop6h 49m

Lambert-St Louis

sam. 8/16

3:30 pm-10:57 pm

2 stops8h 27m

$453

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

lun. 8/25

12:05 am-12:31 pm

2 stops11h 26m

Lambert-St Louis

mar. 9/2

5:30 pm-3:59 pm

1 stop23h 29m

$482

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

sam. 8/23

12:30 am-12:31 pm

1 stop11h 01m

Lambert-St Louis

dim. 8/31

6:00 am-4:25 pm

2 stops11h 25m

$508

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 25 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, 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 juillet 30, 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated juillet 30, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Alberta to St. Louis have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
WestJet
7.2
Good
2,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

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.

  • What are the cheapest airlines to fly from Alberta to St. Louis one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $180. Users have also found prices from $228 and $230 on Air Canada and Alaska Airlines, respectively.

  • 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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 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 juillet 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$309Average$516FlexibilityNo cancel feeOn-time71%

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