Find flights
When to book
FAQs

Cheap flights from St. Louis to Alberta from C$ 232

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYC
15 Sep — 22 Sep1
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 16 August 2026.

Fri 18/92:29 p.m. -
1 stop8h 21m
Sun 20/912:20 a.m. -
1 stop11h 50m
Deal found 14/8C$ 419
Fri 4/96:17 p.m. -
1 stop17h 43m
Sat 5/912:20 a.m. -
1 stop16h 02m
Deal found 14/8C$ 420
Mon 28/92:29 p.m. -
1 stop8h 21m
Mon 12/107:00 a.m. -
1 stop9h 40m
Deal found 13/8C$ 427
Mon 28/92:29 p.m. -
1 stop21h 31m
Thu 15/106:30 p.m. -
2 stops22h 10m
Deal found 13/8C$ 443
Mon 28/92:29 p.m. -
1 stop21h 31m
Thu 15/1012:20 a.m. -
1 stop16h 20m
Deal found 13/8C$ 445
Mon 28/92:29 p.m. -
1 stop8h 21m
Tue 13/109:00 p.m. -
2 stops19h 40m
Deal found 13/8C$ 448
Mon 28/92:29 p.m. -
1 stop8h 21m
Tue 13/1012:20 a.m. -
1 stop16h 20m
Deal found 13/8C$ 449
Fri 2/102:29 p.m. -
1 stop8h 21m
Fri 9/107:00 a.m. -
1 stop9h 40m
Deal found 15/8C$ 483
Fri 11/98:10 p.m. -
2 stops19h 35m
Mon 14/91:35 p.m. -
1 stop20h 57m
Deal found 11/8C$ 732
Thu 10/912:17 p.m. -
1 stop9h 28m
Thu 17/99:30 p.m. -
2 stops14h 40m
Deal found 13/8C$ 735
Thu 24/910:20 a.m. -
2 stops31h 35m
Mon 28/91:35 p.m. -
1 stop20h 57m
Deal found 14/8C$ 742
Fri 11/96:15 a.m. -
2 stops19h 29m
Mon 14/97:00 a.m. -
2 stops15h 16m
Deal found 11/8C$ 756

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 16 August 2026.

Round-trip from

C$ 419

One-way from

C$ 232

Popular in

February

Cheapest in

November

Average price

C$ 957
18/9-20/9
  • 18/9-20/9
  • 2 total stops
  • 20h 11m total
  • St. Louis to Alberta
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 24h 53m total
  • St. Louis to Alberta
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 16 August 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 Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 18/9

2:29 p.m.-3:15 p.m.

2 stops25h 46m

Calgary

Mon 21/9

3:20 p.m.-11:32 a.m.

1 stop19h 12m

C$ 470

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 7/10

8:10 p.m.-5:25 p.m.

2 stops22h 15m

Calgary

Sat 10/10

12:20 a.m.-9:40 a.m.

1 stop8h 20m

C$ 499

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 9/9

8:10 p.m.-2:45 p.m.

1 stop19h 35m

Calgary

Wed 16/9

7:00 a.m.-11:17 a.m.

2 stops27h 17m

C$ 555

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Wed 9/9

11:21 a.m.-5:00 p.m.

1 stop6h 39m

Calgary

Wed 16/9

6:35 a.m.-11:16 p.m.

1 stop15h 41m

C$ 581
Quickest round-trip

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Tue 22/9

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

1 stop7h 20m

Calgary

Fri 25/9

12:20 a.m.-9:34 a.m.

1 stop8h 14m

C$ 583

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 28/8

6:30 a.m.-8:15 p.m.

1 stop14h 45m

Calgary

Fri 4/9

7:00 a.m.-11:58 p.m.

1 stop15h 58m

C$ 590

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Fri 25/9

6:00 a.m.-5:10 p.m.

1 stop12h 10m

Calgary

Fri 2/10

12:20 a.m.-9:34 a.m.

1 stop8h 14m

C$ 616

St. LouisCalgary

STL Lambert-St Louis - YYC Calgary

STLYYC

Lambert-St Louis

Sat 24/10

9:00 a.m.-1:53 p.m.

1 stop5h 53m

Calgary

Wed 28/10

6:00 a.m.-4:57 p.m.

1 stop9h 57m

C$ 631

St. LouisEdmonton

STL Lambert-St Louis - YEG Edmonton

STLYEG

Lambert-St Louis

Thu 10/9

12:17 p.m.-8:45 p.m.

1 stop9h 28m

Edmonton

Thu 17/9

9:30 p.m.-1:10 p.m.

2 stops14h 40m

C$ 735

St. LouisEdmonton

STL Lambert-St Louis - YEG Edmonton

STLYEG

Lambert-St Louis

Thu 24/9

6:00 a.m.-9:40 p.m.

2 stops16h 40m

Edmonton

Mon 28/9

7:40 p.m.-10:55 a.m.

2 stops14h 15m

C$ 778

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/8

Showing 1-10 of 32 resultsSorted by cheapest first
1
2
3
4

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, November is the cheapest month in which you can book a flight from St. Louis to Alberta (average of C$ 670). Flying from St. Louis to Alberta in February is currently the most expensive (average of C$ 1,257). 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.

Weekly flight availability from St. Louis to Alberta

Explore weekly flight availability from St. Louis to Alberta. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 16 August 2026.

The most flights from STL to CAAB are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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

Airfare is below average for this route at the moment.
St. Louis to Alberta flights typically cost between C$ 750 and C$ 1,051 in September.
The cheapest round-trip price found within the last 5 days was C$ 419 on Multiple Airlines (18 Sep-20 Sep).

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 55 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$ 581, WestJet can have you in Alberta from St. Louis in 6h 39m. 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, November is the cheapest month in which you can book a flight from St. Louis to Alberta (average of C$ 670). Flying from St. Louis to Alberta in February is currently the most expensive (average of C$ 1,257). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to Alberta for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.