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Cheap flights from Alberta to St. Louis from C$ 242

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
17 Jun — 24 Jun1
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 18 May 2026.

Mon 14/97:15 a.m.
YYC
-
STL
1 stop9h 45m
Delta
Mon 28/92:15 p.m.
STL
-
YYC
1 stop9h 51m
Delta
Deal found 16/5C$ 544
Sat 10/107:45 a.m.
YYC
-
STL
1 stop5h 46m
Delta
Thu 15/102:15 p.m.
STL
-
YYC
1 stop9h 58m
Delta
Deal found 14/5C$ 546
Wed 14/106:30 a.m.
YYC
-
STL
2 stops11h 11m
Air Canada
Sat 17/1012:10 p.m.
STL
-
YYC
1 stop10h 17m
Air Canada
Deal found 14/5C$ 558
Fri 28/89:30 a.m.
YYC
-
STL
1 stop10h 08m
United Airlines
Mon 31/81:36 p.m.
STL
-
YYC
1 stop5h 54m
United Airlines
Deal found 15/5C$ 562
Mon 12/1012:30 a.m.
YYC
-
STL
1 stop8h 10m
Multiple Airlines
Wed 14/108:10 p.m.
STL
-
YYC
1 stop19h 35m
Multiple Airlines
Deal found 14/5C$ 566
Mon 29/67:00 a.m.
YYC
-
STL
1 stop6h 52m
Multiple Airlines
Mon 6/74:52 p.m.
STL
-
YYC
1 stop29h 58m
Multiple Airlines
Deal found 14/5C$ 571
Wed 14/106:30 a.m.
YYC
-
STL
2 stops11h 11m
Air Canada
Mon 19/1012:10 p.m.
STL
-
YYC
2 stops11h 47m
Air Canada
Deal found 14/5C$ 576
Fri 9/1011:55 p.m.
YYC
-
STL
1 stop13h 05m
Air Canada
Mon 19/1012:10 p.m.
STL
-
YYC
1 stop10h 17m
Air Canada
Deal found 14/5C$ 580
Mon 12/107:45 a.m.
YYC
-
STL
1 stop14h 33m
Delta
Sat 17/106:30 a.m.
STL
-
YYC
1 stop7h 17m
Delta
Deal found 14/5C$ 582
Thu 15/102:00 p.m.
YYC
-
STL
1 stop9h 36m
Delta
Sun 18/102:15 p.m.
STL
-
YYC
1 stop9h 58m
Delta
Deal found 16/5C$ 583
Fri 9/107:15 a.m.
YYC
-
STL
1 stop10h 41m
Delta
Thu 15/102:15 p.m.
STL
-
YYC
1 stop9h 58m
Delta
Deal found 14/5C$ 584
Fri 5/66:00 a.m.
YEG
-
STL
1 stop16h 57m
United Airlines
Sat 6/64:45 p.m.
STL
-
YEG
1 stop6h 19m
United Airlines
Deal found 17/5C$ 657

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 18 May 2026.

Round-trip from

C$ 447

One-way from

C$ 242

Popular in

June

Cheapest in

October

Average price

C$ 712
28/8-1/9
  • 28/8-1/9
  • 2 total stops
  • 53h 09m total
  • Alberta to St. Louis
Search Deals
7/6
  • 7/6
  • 1 total stop
  • 9h 33m total
  • Alberta to St. Louis
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 18 May 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

Mon 14/9

7:15 a.m.-6:00 p.m.

1 stop9h 45m

Lambert-St Louis

Mon 28/9

2:15 p.m.-11:06 p.m.

1 stop9h 51m

C$ 544

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 10/10

7:45 a.m.-4:54 p.m.

1 stop8h 09m

Lambert-St Louis

Tue 13/10

2:15 p.m.-11:13 p.m.

1 stop9h 58m

C$ 546

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 28/8

9:30 a.m.-8:38 p.m.

1 stop10h 08m

Lambert-St Louis

Mon 31/8

1:36 p.m.-6:30 p.m.

1 stop5h 54m

C$ 562

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 29/6

7:00 a.m.-2:52 p.m.

1 stop6h 52m

Lambert-St Louis

Mon 6/7

4:52 p.m.-9:50 p.m.

1 stop29h 58m

C$ 571

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 12/10

7:45 a.m.-11:18 p.m.

1 stop14h 33m

Lambert-St Louis

Mon 19/10

2:15 p.m.-11:13 p.m.

1 stop9h 58m

C$ 582

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 15/10

2:00 p.m.-12:36 a.m.

1 stop9h 36m

Lambert-St Louis

Sun 18/10

2:15 p.m.-11:13 p.m.

1 stop9h 58m

C$ 583

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 14/10

2:00 p.m.-12:36 a.m.

1 stop9h 36m

Lambert-St Louis

Sun 18/10

2:15 p.m.-11:13 p.m.

1 stop9h 58m

C$ 584

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 12/10

7:15 a.m.-6:56 p.m.

1 stop10h 41m

Lambert-St Louis

Wed 14/10

2:15 p.m.-11:13 p.m.

1 stop9h 58m

C$ 584

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 5/6

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

1 stop16h 57m

Lambert-St Louis

Sat 6/6

4:45 p.m.-10:04 p.m.

1 stop6h 19m

C$ 657

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 5/6

11:46 a.m.-11:54 p.m.

1 stop11h 08m

Lambert-St Louis

Mon 8/6

7:41 p.m.-10:56 a.m.

1 stop16h 15m

C$ 709

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/5

Showing 1-10 of 33 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, August is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 260). Flying from Alberta to St. Louis in June is currently the most expensive (average of C$ 851). 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 Alberta to St. Louis?

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$ 544, Delta can have you in St. Louis from Alberta in 9h 45m. 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, August is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 260). Flying from Alberta to St. Louis in June is currently the most expensive (average of C$ 851). 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 4 airlines flying from Alberta to St. Louis

Discover the top 4 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 18 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 259AverageC$ 671FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 315AverageC$ 540FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 541AverageC$ 614FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 596AverageC$ 723FlexibilityNo 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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