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Cheap flights from Alberta to St. Louis from C$ 229

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
15 Sep — 22 Sep1
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 16 August 2026.

Wed 26/87:00 a.m. -
1 stop8h 17m
Mon 31/88:48 a.m. -
1 stop9h 12m
Deal found 12/8C$ 499
Sun 6/911:00 a.m. -
1 stop8h 42m
Tue 15/96:15 a.m. -
2 stops10h 00m
Deal found 12/8C$ 502
Fri 11/911:40 a.m. -
1 stop26h 09m
Sat 12/95:46 p.m. -
1 stop18h 14m
Deal found 12/8C$ 509
Fri 30/106:00 a.m. -
1 stop13h 59m
Tue 3/118:50 a.m. -
1 stop15h 03m
Deal found 12/8C$ 515
Tue 8/912:20 a.m. -
1 stop8h 14m
Wed 16/911:21 a.m. -
2 stops7h 49m
Deal found 11/8C$ 516
Fri 18/912:20 a.m. -
1 stop8h 14m
Sat 26/96:00 a.m. -
1 stop12h 10m
Deal found 16/8C$ 530
Thu 3/97:00 a.m. -
1 stop8h 17m
Mon 7/96:00 a.m. -
1 stop16h 50m
Deal found 15/8C$ 535
Sat 19/97:00 a.m. -
1 stop8h 32m
Sun 20/96:15 a.m. -
1 stop11h 45m
Deal found 15/8C$ 537
Thu 29/108:35 p.m. -
2 stops12h 05m
Tue 3/115:32 p.m. -
1 stop32h 15m
Deal found 11/8C$ 644
Fri 11/96:10 a.m. -
2 stops12h 07m
Mon 14/912:17 p.m. -
1 stop9h 28m
Deal found 13/8C$ 659
Fri 11/99:30 p.m. -
2 stops25h 12m
Sun 13/96:15 a.m. -
2 stops19h 29m
Deal found 12/8C$ 666
Sat 24/109:40 a.m. -
1 stop12h 41m
Wed 28/106:21 a.m. -
2 stops19h 26m
Deal found 14/8C$ 677

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 16 August 2026.

Round-trip from

C$ 499

One-way from

C$ 229

Popular in

June

Cheapest in

May

Average price

C$ 701
WestJet
  • WestJet
  • 26/8-31/8
  • 2 total stops
  • 17h 29m total
  • Alberta to St. Louis
Search Deals
11/9
  • 11/9
  • 1 total stop
  • 9h 32m total
  • Alberta to St. Louis
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 33 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 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 16 August 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 Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Fri 30/10

6:00 a.m.-8:59 p.m.

1 stop13h 59m

Lambert-St Louis

Tue 3/11

8:50 a.m.-11:53 p.m.

1 stop15h 03m

C$ 515

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Wed 9/9

7:00 a.m.-3:54 p.m.

1 stop7h 54m

Lambert-St Louis

Wed 16/9

8:46 a.m.-5:00 p.m.

1 stop9h 14m

C$ 522

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Fri 30/10

6:35 a.m.-5:44 p.m.

1 stop10h 09m

Lambert-St Louis

Tue 3/11

5:00 p.m.-1:10 a.m.

1 stop8h 10m

C$ 524

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Fri 18/9

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

1 stop8h 14m

Lambert-St Louis

Sat 26/9

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

1 stop12h 10m

C$ 530

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Thu 3/9

7:00 a.m.-4:17 p.m.

1 stop8h 17m

Lambert-St Louis

Mon 7/9

6:00 a.m.-9:50 p.m.

1 stop16h 50m

C$ 535

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Thu 17/9

6:30 p.m.-9:00 a.m.

2 stops13h 30m

Lambert-St Louis

Sun 20/9

6:15 a.m.-7:40 p.m.

2 stops14h 25m

C$ 545

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Sat 26/9

12:20 a.m.-9:00 a.m.

1 stop7h 40m

Lambert-St Louis

Sun 4/10

6:15 a.m.-7:40 p.m.

2 stops14h 25m

C$ 555

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Wed 25/11

8:55 a.m.-12:26 p.m.

1 stop27h 31m

Lambert-St Louis

Mon 30/11

9:45 a.m.-8:15 p.m.

2 stops10h 30m

C$ 556

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Sun 13/9

1:35 p.m.-11:17 a.m.

1 stop20h 42m

Lambert-St Louis

Tue 15/9

3:52 p.m.-12:44 a.m.

2 stops9h 52m

C$ 567

EdmontonSt. Louis

YEG Edmonton - STL Lambert-St Louis

YEGSTL

Edmonton

Sat 24/10

9:40 a.m.-11:21 p.m.

1 stop12h 41m

Lambert-St Louis

Wed 28/10

6:21 a.m.-12:47 a.m.

2 stops19h 26m

C$ 677

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/8

Showing 1-10 of 28 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$ 444). Flying from Alberta to St. Louis in June is currently the most expensive (average of C$ 963). 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$ 522, United Airlines can have you in St. Louis from Alberta in 7h 54m. 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$ 444). Flying from Alberta to St. Louis in June is currently the most expensive (average of C$ 963). 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 16 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 346AverageC$ 545FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 395AverageC$ 962FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 543AverageC$ 1,117FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 567AverageC$ 701FlexibilityNo 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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