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Cheap flights from St. Louis to Alberta from C$ 250

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYC
29 Jul — 5 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. Louis to Alberta

Enter your travel dates to find the best prices.

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 29 June 2026.

Tue 13/1010:35 a.m.
STL
-
YYC
1 stop25h 25m
Multiple Airlines
Tue 20/106:50 p.m.
YYC
-
STL
2 stops13h 50m
Multiple Airlines
Deal found 25/6C$ 536
Tue 29/910:35 a.m.
STL
-
YYC
2 stops29h 40m
Multiple Airlines
Mon 5/1012:20 a.m.
YYC
-
STL
1 stop8h 20m
Multiple Airlines
Deal found 25/6C$ 549
Mon 17/84:57 p.m.
STL
-
YYC
1 stop19h 03m
Multiple Airlines
Thu 20/89:00 p.m.
YYC
-
STL
2 stops19h 22m
Multiple Airlines
Deal found 29/6C$ 552
Sun 23/86:17 p.m.
STL
-
YYC
1 stop17h 43m
Multiple Airlines
Wed 26/89:00 p.m.
YYC
-
STL
2 stops19h 22m
Multiple Airlines
Deal found 26/6C$ 553
Mon 10/84:57 p.m.
STL
-
YYC
1 stop19h 03m
Multiple Airlines
Sat 22/812:20 a.m.
YYC
-
STL
1 stop16h 02m
Multiple Airlines
Deal found 28/6C$ 558
Sun 16/86:34 p.m.
STL
-
YYC
1 stop17h 26m
Multiple Airlines
Sat 22/812:20 a.m.
YYC
-
STL
1 stop16h 02m
Multiple Airlines
Deal found 28/6C$ 559
Sun 19/76:34 p.m.
STL
-
YYC
2 stops21h 41m
Multiple Airlines
Fri 24/77:00 a.m.
YYC
-
STL
1 stop24h 57m
Multiple Airlines
Deal found 27/6C$ 561
Sun 2/86:34 p.m.
STL
-
YYC
2 stops22h 36m
Multiple Airlines
Fri 7/87:00 a.m.
YYC
-
STL
1 stop24h 57m
Multiple Airlines
Deal found 28/6C$ 562
Fri 11/910:35 a.m.
STL
-
YYC
2 stops29h 40m
Multiple Airlines
Mon 14/912:20 a.m.
YYC
-
STL
1 stop8h 20m
Multiple Airlines
Deal found 27/6C$ 563
Thu 13/86:34 p.m.
STL
-
YYC
1 stop23h 36m
Multiple Airlines
Sat 22/812:20 a.m.
YYC
-
STL
1 stop16h 02m
Multiple Airlines
Deal found 28/6C$ 565
Sat 15/84:57 p.m.
STL
-
YYC
1 stop19h 03m
Multiple Airlines
Mon 24/87:00 a.m.
YYC
-
STL
1 stop9h 22m
Multiple Airlines
Deal found 28/6C$ 566
Sun 19/76:34 p.m.
STL
-
YEG
2 stops22h 16m
Multiple Airlines
Wed 29/71:35 p.m.
YEG
-
STL
1 stop27h 40m
Multiple Airlines
Deal found 25/6C$ 643

Find 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 29 June 2026.

Round-trip from

C$ 536

One-way from

C$ 250

Popular in

December

Cheapest in

April

Average price

C$ 1,032
13/10-20/10
  • 13/10-20/10
  • 3 total stops
  • 39h 15m total
  • St. Louis to Alberta
Search Deals
14/10
  • 14/10
  • 1 total stop
  • 19h 35m total
  • St. Louis to Alberta
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 29 June 2026.
Use the filters below to find and compare flights from St. Louis to Alberta that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sun 2/8

6:34 p.m.-11:00 a.m.

1 stop17h 26m

Calgary

Fri 7/8

7:00 a.m.-8:57 a.m.

1 stop24h 57m

C$ 571

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 29/8

5:00 a.m.-11:42 p.m.

1 stop19h 42m

Calgary

Fri 4/9

1:52 p.m.-8:24 a.m.

1 stop17h 32m

C$ 596

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sun 16/8

6:34 p.m.-11:00 a.m.

1 stop17h 26m

Calgary

Thu 20/8

7:00 a.m.-5:22 p.m.

1 stop9h 22m

C$ 603
Quickest round-trip

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 8/9

5:30 p.m.-10:36 p.m.

1 stop6h 06m

Calgary

Sun 13/9

6:00 a.m.-12:40 p.m.

1 stop5h 40m

C$ 633

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 15/9

1:55 p.m.-8:15 p.m.

1 stop7h 20m

Calgary

Wed 23/9

10:15 a.m.-4:47 p.m.

1 stop5h 32m

C$ 657

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 25/9

10:05 a.m.-10:20 p.m.

2 stops13h 15m

Calgary

Sat 3/10

7:00 a.m.-4:47 p.m.

2 stops8h 47m

C$ 667

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 7/11

9:00 a.m.-8:54 p.m.

2 stops12h 54m

Calgary

Thu 12/11

2:50 p.m.-11:18 p.m.

1 stop7h 28m

C$ 677

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 15/9

11:21 a.m.-11:06 p.m.

2 stops12h 45m

Calgary

Wed 23/9

6:35 a.m.-4:47 p.m.

1 stop9h 12m

C$ 695

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 24/7

5:36 p.m.-7:40 p.m.

2 stops27h 04m

Calgary

Sun 2/8

10:15 a.m.-10:23 a.m.

1 stop23h 08m

C$ 712

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 6/8

11:13 a.m.-7:40 p.m.

2 stops9h 27m

Calgary

Thu 13/8

6:30 p.m.-9:54 a.m.

2 stops14h 24m

C$ 727

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/6

Showing 1-10 of 33 resultsSorted by cheapest first
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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$ 284). Flying from St. Louis to Alberta in May is currently the most expensive (average of C$ 815). 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.

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

How far ahead should I book a flight from St. Louis to Alberta?

The best time to book flights from St. Louis to Alberta is 20 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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$ 633, American Airlines can have you in Alberta from St. Louis in 6h 06m. There are 2297 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$ 284). Flying from St. Louis to Alberta in May is currently the most expensive (average of C$ 815). 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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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.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Alberta?

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

Yes, we can. To see specific flights from St. Louis to Alberta with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for St. Louis to Alberta flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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