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Cheap flights from Alberta to St. Louis from C$ 265

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
20 Apr — 27 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Alberta to St. Louis

Enter your travel dates to find the best prices.

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 21 March 2026.

Mon 4/57:40 a.m.
YYC
-
STL
2 stops14h 33m
Delta
Sun 10/52:27 p.m.
STL
-
YYC
1 stop9h 30m
Delta
Deal found 20/3C$ 516
Wed 29/45:45 a.m.
YYC
-
STL
1 stop8h 40m
Air Canada
Sat 2/51:05 p.m.
STL
-
YYC
1 stop9h 27m
Air Canada
Deal found 18/3C$ 526
Mon 4/51:40 p.m.
YYC
-
STL
1 stop17h 44m
American Airlines
Sun 10/58:03 p.m.
STL
-
YYC
1 stop17h 56m
American Airlines
Deal found 20/3C$ 539
Thu 16/412:45 p.m.
YYC
-
STL
1 stop19h 09m
American Airlines
Mon 20/48:03 p.m.
STL
-
YYC
1 stop17h 56m
American Airlines
Deal found 18/3C$ 567
Mon 4/57:40 a.m.
YYC
-
STL
1 stop8h 46m
Delta
Sat 16/511:25 a.m.
STL
-
YYC
2 stops12h 32m
Delta
Deal found 20/3C$ 579
Wed 29/412:25 p.m.
YYC
-
STL
2 stops9h 48m
Delta
Sat 2/512:23 p.m.
STL
-
YYC
2 stops8h 17m
Delta
Deal found 18/3C$ 591
Mon 20/412:30 a.m.
YYC
-
STL
1 stop10h 26m
Delta
Wed 22/42:20 p.m.
STL
-
YYC
1 stop9h 40m
Delta
Deal found 17/3C$ 612
Wed 29/41:27 p.m.
YYC
-
STL
1 stop6h 27m
United Airlines
Sat 2/56:30 a.m.
STL
-
YYC
1 stop6h 02m
United Airlines
Deal found 20/3C$ 615
Fri 1/51:40 p.m.
YYC
-
STL
1 stop25h 20m
American Airlines
Fri 8/57:05 a.m.
STL
-
YYC
1 stop6h 54m
American Airlines
Deal found 17/3C$ 619
Sat 11/46:00 a.m.
YEG
-
STL
1 stop6h 08m
United Airlines
Sat 18/48:54 a.m.
STL
-
YEG
1 stop6h 14m
United Airlines
Deal found 16/3C$ 622
Tue 21/41:27 p.m.
YYC
-
STL
1 stop6h 27m
United Airlines
Wed 22/46:30 a.m.
STL
-
YYC
1 stop6h 02m
United Airlines
Deal found 16/3C$ 626
Tue 5/58:00 a.m.
YEG
-
STL
2 stops11h 25m
Air Canada
Wed 6/52:15 p.m.
STL
-
YEG
1 stop7h 39m
Air Canada
Deal found 19/3C$ 639

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 21 March 2026.

Round-trip from

C$ 516

One-way from

C$ 265

Popular in

November

Cheapest in

October

Average price

C$ 697
Delta
  • Delta
  • 4/5-10/5
  • 3 total stops
  • 24h 03m total
  • Alberta to St. Louis
Search Deals
30/4
  • 30/4
  • 2 total stops
  • 34h 10m total
  • Alberta to St. Louis
Search Deals
High demand for flights, 3% potential price rise
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 March 2026
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 629,999 searches. Data last updated 21 March 2026.
Use the filters below to find and compare flights from Alberta to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 29/4

5:45 a.m.-3:25 p.m.

1 stop8h 40m

Lambert-St Louis

Sat 2/5

1:05 p.m.-9:32 p.m.

1 stop9h 27m

C$ 526

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 16/4

12:45 p.m.-8:54 a.m.

1 stop19h 09m

Lambert-St Louis

Mon 20/4

8:03 p.m.-12:59 p.m.

1 stop17h 56m

C$ 567

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 29/4

12:25 p.m.-11:13 p.m.

2 stops9h 48m

Lambert-St Louis

Sat 2/5

12:23 p.m.-7:40 p.m.

2 stops8h 17m

C$ 591

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 4/5

11:00 a.m.-11:36 p.m.

2 stops11h 36m

Lambert-St Louis

Sun 10/5

10:19 a.m.-8:05 p.m.

1 stop10h 46m

C$ 591

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 20/4

12:30 a.m.-11:56 a.m.

1 stop10h 26m

Lambert-St Louis

Wed 22/4

2:20 p.m.-11:00 p.m.

1 stop9h 40m

C$ 612

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 29/4

1:27 p.m.-8:54 p.m.

1 stop6h 27m

Lambert-St Louis

Sat 2/5

6:30 a.m.-11:32 a.m.

1 stop6h 02m

C$ 615

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 5/6

6:00 a.m.-11:57 p.m.

1 stop16h 57m

Lambert-St Louis

Sun 7/6

5:10 a.m.-2:08 p.m.

1 stop9h 58m

C$ 622
Quickest round-trip

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Sat 11/4

6:00 a.m.-1:08 p.m.

1 stop6h 08m

Lambert-St Louis

Sat 18/4

8:54 a.m.-2:08 p.m.

1 stop6h 14m

C$ 622

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 21/4

1:27 p.m.-8:54 p.m.

1 stop6h 27m

Lambert-St Louis

Wed 22/4

6:30 a.m.-11:32 a.m.

1 stop6h 02m

C$ 626

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Tue 5/5

6:00 a.m.-8:25 p.m.

2 stops13h 25m

Lambert-St Louis

Wed 6/5

2:15 p.m.-8:54 p.m.

1 stop7h 39m

C$ 641

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/3

Showing 1-10 of 36 resultsSorted by cheapest first
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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, May is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 410). Flying from Alberta to St. Louis in January is currently the most expensive (average of C$ 730). 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 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?

    For a flight from Alberta to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 20.4 km from the centre of the city.

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

    For as low as C$ 526, Delta can have you in St. Louis from Alberta in 8h 40m. The distance between Alberta and St. Louis is about 2297 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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, May is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 410). Flying from Alberta to St. Louis in January is currently the most expensive (average of C$ 730). 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

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Chesterfield

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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 629,999 searches. Data last updated 21 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 259AverageC$ 648FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 566AverageC$ 662FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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 Alberta to St. Louis?

When you search for this flight from Alberta to St. Louis, 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 Alberta to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from Alberta by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Alberta to St. Louis with no change fees.

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

Yes, Cheapflights offers price alerts on Alberta to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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