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Cheap flights from St. Louis to Alberta from C$ 155

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYC
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from St. Louis to Alberta

Keep the following information in mind while searching for St. Louis to Alberta flight deals. Data was last updated 11 September 2025.

Round-trip from

C$ 395

One-way from

C$ 155

Popular in

September

Cheapest in

January

Average price

C$ 883
American Airlines
  • American Airlines
  • 25/10-1/11
  • 3 total stops
  • 35h 23m total
  • St. Louis to Alberta
Search Deals
10/10
  • 10/10
  • 1 total stop
  • 14h 13m total
  • St. Louis to Alberta
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Alberta

Cheapest flights from St. Louis to Alberta
Explore the most affordable flight options available from St. Louis to Alberta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Sat 25/104:34 p.m.STL - YYC
1 stop21h 00mAmerican Airlines
Sat 1/116:45 a.m.YYC - STL
2 stops14h 23mAmerican Airlines
Deal found 9/9C$ 395
Sat 11/108:00 p.m.STL - YYC
1 stop17h 34mAmerican Airlines
Tue 14/101:29 p.m.YYC - STL
1 stop9h 25mAmerican Airlines
Deal found 10/9C$ 403
Fri 3/109:56 a.m.STL - YYC
1 stop14h 25mAmerican Airlines
Fri 10/101:29 p.m.YYC - STL
1 stop17h 40mAmerican Airlines
Deal found 9/9C$ 414
Tue 21/104:34 p.m.STL - YYC
1 stop21h 00mAmerican Airlines
Sun 26/101:29 p.m.YYC - STL
1 stop9h 25mAmerican Airlines
Deal found 11/9C$ 418
Sat 4/105:25 p.m.STL - YYC
1 stop20h 06mAmerican Airlines
Fri 10/101:29 p.m.YYC - STL
1 stop17h 40mAmerican Airlines
Deal found 10/9C$ 420
Mon 20/104:34 p.m.STL - YYC
1 stop21h 00mAmerican Airlines
Thu 23/101:29 p.m.YYC - STL
1 stop17h 40mAmerican Airlines
Deal found 11/9C$ 448
Sat 25/104:51 p.m.STL - YYC
1 stop31h 14mMultiple Airlines
Fri 31/101:00 a.m.YYC - STL
2 stops16h 10mMultiple Airlines
Deal found 9/9C$ 474
Sun 26/105:15 p.m.STL - YYC
2 stops25h 00mMultiple Airlines
Sun 2/117:35 p.m.YYC - STL
1 stop14h 49mMultiple Airlines
Deal found 10/9C$ 482
Thu 25/99:50 a.m.STL - YYC
2 stops11h 12mMultiple Airlines
Sun 28/98:55 a.m.YYC - STL
1 stop23h 11mMultiple Airlines
Deal found 11/9C$ 507
Wed 10/95:30 p.m.STL - YEG
2 stops23h 42mWestJet
Wed 17/96:15 a.m.YEG - STL
2 stops11h 50mWestJet
Deal found 9/9C$ 1,214
Wed 10/94:40 p.m.STL - YEG
1 stop6h 24mAir Canada
Wed 17/910:55 a.m.YEG - STL
2 stops11h 58mAir Canada
Deal found 9/9C$ 1,343
Wed 10/911:29 a.m.STL - YEG
1 stop5h 30mDelta
Wed 17/99:25 a.m.YEG - STL
1 stop6h 20mDelta
Deal found 9/9C$ 1,401

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Alberta 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 629,999 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from St. Louis to Alberta that are best for you.

Fly from

St. Louis

Fly to

Alberta

Route

Depart

Return

Price

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 3/10

9:56 a.m.-11:21 p.m.

1 stop14h 25m

Calgary

Fri 10/10

1:29 p.m.-8:09 a.m.

1 stop17h 40m

C$ 414

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 14/1

3:36 p.m.-12:45 p.m.

1 stop22h 09m

Calgary

Sat 24/1

1:40 p.m.-1:47 p.m.

1 stop23h 07m

C$ 467

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 26/9

7:16 a.m.-9:50 p.m.

1 stop15h 34m

Calgary

Fri 3/10

6:29 a.m.-8:32 p.m.

1 stop13h 03m

C$ 546

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 23/10

8:05 p.m.-12:34 p.m.

1 stop17h 29m

Calgary

Fri 31/10

6:45 a.m.-4:17 p.m.

1 stop8h 32m

C$ 546

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 23/10

12:25 p.m.-11:38 a.m.

1 stop24h 13m

Calgary

Fri 31/10

12:37 p.m.-2:25 p.m.

1 stop24h 48m

C$ 606

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 25/10

7:15 p.m.-5:15 p.m.

2 stops23h 00m

Calgary

Sat 1/11

12:20 p.m.-11:02 a.m.

2 stops21h 42m

C$ 608

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 20/11

2:21 p.m.-11:10 p.m.

1 stop9h 49m

Calgary

Sun 23/11

7:45 a.m.-6:57 p.m.

1 stop10h 12m

C$ 612

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Tue 10/3

4:05 p.m.-11:13 p.m.

1 stop8h 08m

Edmonton

Wed 11/3

6:00 a.m.-3:29 p.m.

1 stop8h 29m

C$ 784

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Tue 10/3

7:00 a.m.-4:40 p.m.

1 stop10h 40m

Edmonton

Wed 11/3

5:25 p.m.-11:56 p.m.

1 stop29h 31m

C$ 863

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Tue 10/3

12:10 p.m.-12:39 a.m.

2 stops13h 29m

Edmonton

Wed 11/3

6:00 a.m.-6:04 p.m.

2 stops11h 04m

C$ 892

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 17 results
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Best time to book a flight from St. Louis to Alberta

Have a flexible travel schedule? Discover the best time to fly to Alberta from St. Louis 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 St. Louis to Alberta

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Alberta (average of C$ 138). Flying from St. Louis to Alberta in July is currently the most expensive (average of C$ 263). 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.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Alberta. 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 from for flights from St. Louis to Alberta?

    Located just 20.4 km from the city centre, Lambert-St Louis (STL) is the airport most travellers will use when flying to Alberta from St. Louis.

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

    For as low as C$ 784, American Airlines can have you in Alberta from St. Louis in 8h 08m. There are 2393 km between St. Louis and Alberta. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Alberta 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 St. Louis to Alberta?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Alberta (average of C$ 138). Flying from St. Louis to Alberta in July is currently the most expensive (average of C$ 263). 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

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Alternative routes for St. Louis to Alberta

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How does Cheapflights help users find flights from St. Louis to Alberta?

When you search for this flight from St. Louis to Alberta, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Can Cheapflights find flights from St. Louis to Alberta with no change fees?

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Can Cheapflights notify me if prices for flights from St. Louis to Alberta become cheaper?

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