What are the cheapest airlines to fly from Alberta to St. Louis one-way?

The cheapest airlines for a one-way flight from Alberta to St. Louis are American Airlines (C$ 257), Air Canada (C$ 279), and Delta (C$ 283).

What are the most popular airlines that fly from Alberta to St. Louis?

Before booking your flight from Alberta to St. Louis check out the most popular airlines for this route: Air Canada, Delta or United Airlines.

What is the cheapest month to fly from Alberta to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, January can be a great choice for travel to St. Louis. Flights to St. Louis from Alberta in January are about C$ 610 on average during January, but can be found for as low as C$ 334.

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.

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.

C$ 205+ Flights from Alberta to St. Louis

Cheap flight deals from Alberta to St. Louis

Round-trip from	C$ 421
One-way from	C$ 205
Popular in	November
Cheapest in	January
Average price	C$ 632

9/7-13/7
3 total stops
57h 50m total
Alberta to St. Louis

Search Deals

9/7
1 total stop
20h 37m total
Alberta to St. Louis

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (C$ 46 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Alberta to St. Louis

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 12 June 2025.

Wed 9/79:15 a.m.YYC - STL

1 stop23h 37mMultiple Airlines

Sun 13/710:47 a.m.STL - YYC

2 stops34h 13mMultiple Airlines

Deal found 10/6C$ 421

Thu 21/88:45 p.m.YEG - STL

2 stops14h 36mMultiple Airlines

Mon 25/86:00 a.m.STL - YEG

1 stop11h 21mMultiple Airlines

Deal found 10/6C$ 580

Tue 15/712:30 a.m.YYC - STL

1 stop14h 48mWestJet

Sat 19/71:23 p.m.STL - YYC

1 stop22h 56mWestJet

Deal found 10/6C$ 592

Thu 21/89:25 a.m.YEG - STL

1 stop6h 20mWestJet

Mon 25/85:30 p.m.STL - YEG

1 stop23h 28mWestJet

Deal found 10/6C$ 596

Mon 22/96:00 a.m.YEG - STL

1 stop13h 46mUnited Airlines

Tue 30/912:25 p.m.STL - YEG

2 stops26h 43mUnited Airlines

Deal found 10/6C$ 597

Wed 9/77:00 a.m.YYC - STL

2 stops8h 42mDelta

Sun 13/72:23 p.m.STL - YYC

1 stop9h 34mDelta

Deal found 11/6C$ 636

Thu 11/91:00 a.m.YEG - STL

1 stop17h 57mAir Canada

Sat 27/94:05 p.m.STL - YEG

1 stop7h 51mAir Canada

Deal found 12/6C$ 644

Fri 12/99:45 a.m.YEG - STL

1 stop7h 12mDelta

Sat 27/912:10 p.m.STL - YEG

2 stops13h 17mDelta

Deal found 11/6C$ 648

Fri 13/61:27 p.m.YYC - STL

1 stop6h 03mAmerican Airlines

Mon 23/67:20 a.m.STL - YYC

1 stop17h 09mAmerican Airlines

Deal found 11/6C$ 655

Best flights from Alberta to St. Louis
Discover carefully curated flight deals from Alberta to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 June 2025.

Wed 9/79:15 a.m.YYC - STL

1 stop23h 37mMultiple Airlines

Sun 13/710:47 a.m.STL - YYC

2 stops34h 13mMultiple Airlines

Deal found 10/6C$ 421

Tue 15/712:30 a.m.YYC - STL

1 stop14h 48mWestJet

Sat 19/71:23 p.m.STL - YYC

1 stop22h 56mWestJet

Deal found 10/6C$ 592

Mon 22/96:00 a.m.YEG - STL

1 stop13h 46mUnited Airlines

Tue 30/912:25 p.m.STL - YEG

2 stops26h 43mUnited Airlines

Deal found 10/6C$ 597

Wed 9/77:00 a.m.YYC - STL

2 stops8h 42mDelta

Sun 13/72:23 p.m.STL - YYC

1 stop9h 34mDelta

Deal found 11/6C$ 636

Thu 11/91:00 a.m.YEG - STL

1 stop17h 57mAir Canada

Sat 27/94:05 p.m.STL - YEG

1 stop7h 51mAir Canada

Deal found 12/6C$ 644

Thu 21/88:45 p.m.YEG - STL

2 stops14h 36mMultiple Airlines

Mon 25/86:00 a.m.STL - YEG

1 stop11h 21mMultiple Airlines

Deal found 10/6C$ 580

Thu 21/89:25 a.m.YEG - STL

1 stop6h 20mWestJet

Mon 25/85:30 p.m.STL - YEG

1 stop23h 28mWestJet

Deal found 10/6C$ 596

Fri 12/99:45 a.m.YEG - STL

1 stop7h 12mDelta

Sat 27/912:10 p.m.STL - YEG

2 stops13h 17mDelta

Deal found 11/6C$ 648

Last-minute flights from Alberta to St. Louis
Discover last-minute flight deals from Alberta to St. Louis. Data last updated 12 June 2025 and is based on user searches.

Fri 13/61:27 p.m.YYC - STL

1 stop6h 03mAmerican Airlines

Mon 23/67:20 a.m.STL - YYC

1 stop17h 09mAmerican Airlines

Deal found 11/6C$ 655

Tue 8/712:55 a.m.YEG - STL

1 stop13h 21mAir Canada

Wed 16/79:15 a.m.STL - YEG

1 stop10h 42mAir Canada

Deal found 11/6C$ 1,109

Wed 9/79:15 a.m.YYC - STL

1 stop23h 37mMultiple Airlines

Sun 13/710:47 a.m.STL - YYC

2 stops34h 13mMultiple Airlines

Deal found 10/6C$ 421

Wed 9/78:00 a.m.YEG - STL

2 stops24h 52mMultiple Airlines

Wed 16/711:24 a.m.STL - YEG

3 stops34h 28mMultiple Airlines

Deal found 11/6C$ 585

Wed 9/78:00 a.m.YEG - STL

2 stops14h 20mWestJet

Sat 19/711:18 a.m.STL - YEG

2 stops9h 06mWestJet

Deal found 11/6C$ 628

Wed 9/77:00 a.m.YYC - STL

2 stops8h 42mDelta

Sun 13/72:23 p.m.STL - YYC

1 stop9h 34mDelta

Deal found 11/6C$ 636

Wed 9/73:17 p.m.YEG - STL

1 stop5h 33mUnited Airlines

Sat 19/77:55 a.m.STL - YEG

1 stop9h 30mUnited Airlines

Deal found 11/6C$ 678

Tue 15/712:30 a.m.YYC - STL

1 stop14h 48mWestJet

Sat 19/71:23 p.m.STL - YYC

1 stop22h 56mWestJet

Deal found 10/6C$ 592

One-way flights from Alberta to St. Louis
Search for one-way flight options from Alberta to St. Louis. Find affordable one-way fares based on user searches. Data last updated 12 June 2025.

Wed 9/712:15 p.m.YYC - STL

1 stop20h 37mMultiple Airlines

Deal found 10/6C$ 205

Mon 29/96:29 a.m.YYC - STL

1 stop16h 19mAmerican Airlines

Deal found 12/6C$ 257

Wed 9/76:00 a.m.YEG - STL

2 stops26h 52mMultiple Airlines

Deal found 10/6C$ 263

Fri 22/86:00 a.m.YYC - STL

1 stop8h 21mAir Canada

Deal found 12/6C$ 279

Mon 29/96:35 a.m.YYC - STL

2 stops13h 00mDelta

Deal found 11/6C$ 283

Tue 8/712:30 a.m.YYC - STL

1 stop8h 11mWestJet

Deal found 10/6C$ 332

Wed 9/73:17 p.m.YEG - STL

1 stop5h 33mUnited Airlines

Deal found 10/6C$ 335

Sat 13/96:15 a.m.YEG - STL

2 stops12h 42mAir Canada

Deal found 11/6C$ 336

Fri 25/76:30 p.m.YEG - STL

2 stops16h 48mWestJet

Deal found 10/6C$ 338

Sat 13/98:45 p.m.YEG - STL

2 stops12h 55mDelta

Deal found 9/6C$ 372

Fri 22/83:49 p.m.YYC - STL

3 stops22h 55mUnited Airlines

Deal found 10/6C$ 488

Cheapflights Fare Finder

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

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 9/7

9:15 a.m.-9:52 a.m.

1 stop23h 37m

Lambert-St Louis

Sun 13/7

10:47 a.m.-8:00 p.m.

2 stops34h 13m

C$ 421

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 21/8

8:45 p.m.-12:21 p.m.

2 stops14h 36m

Lambert-St Louis

Mon 25/8

6:00 a.m.-4:21 p.m.

1 stop11h 21m

C$ 580

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 15/7

12:30 a.m.-4:18 p.m.

1 stop14h 48m

Lambert-St Louis

Sat 19/7

1:23 p.m.-11:19 a.m.

1 stop22h 56m

C$ 592

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 21/8

9:25 a.m.-4:45 p.m.

1 stop6h 20m

Lambert-St Louis

Mon 25/8

5:30 p.m.-3:58 p.m.

1 stop23h 28m

C$ 596

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Mon 22/9

3:17 p.m.-11:53 p.m.

1 stop7h 36m

Lambert-St Louis

Tue 30/9

5:15 a.m.-2:08 p.m.

1 stop9h 53m

C$ 597

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 9/7

7:00 a.m.-4:42 p.m.

2 stops8h 42m

Lambert-St Louis

Sun 13/7

2:23 p.m.-10:57 p.m.

1 stop9h 34m

C$ 636

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 11/9

1:00 a.m.-7:57 p.m.

1 stop17h 57m

Lambert-St Louis

Sat 27/9

4:05 p.m.-10:56 p.m.

1 stop7h 51m

C$ 644

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Fri 12/9

9:45 a.m.-5:57 p.m.

1 stop7h 12m

Lambert-St Louis

Sat 27/9

12:10 p.m.-12:27 a.m.

2 stops13h 17m

C$ 648

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 9/7

12:15 p.m.-9:52 a.m.

1 stop20h 37m

C$ 205

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 29/9

6:29 a.m.-11:48 p.m.

1 stop16h 19m

C$ 257

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 19 results

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, January is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 365). Flying from Alberta to St. Louis in September is currently the most expensive (average of C$ 491). 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.

What is the cheapest time of day to fly from AB to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Alberta to St. Louis as you normally would.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Alberta to St. Louis by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,950 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

WestJet

7.2

Good

2,868 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,531 reviews

Delta

8.0

Very good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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.
What are the cheapest airlines to fly from Alberta to St. Louis one-way?
The cheapest airlines for a one-way flight from Alberta to St. Louis are American Airlines (C$ 257), Air Canada (C$ 279), and Delta (C$ 283).
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, January is the cheapest month in which you can book a flight from Alberta to St. Louis (average of C$ 365). Flying from Alberta to St. Louis in September is currently the most expensive (average of C$ 491). 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

Chesterfield

St. Peters

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Alberta to St. Louis

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Complete your trip

St. Louis car rentals

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Top 4 airlines flying from Alberta to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 333	AverageC$ 632	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
WestJet	CheapestC$ 337	AverageC$ 652	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 374	AverageC$ 431	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 440	AverageC$ 730	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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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Cheap flights from Alberta to St. Louis from C$ 205

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 12 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Alberta to St. Louis

Cheapest flights from Alberta to St. LouisExplore 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 12 June 2025.

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 12 June 2025.

Cheapflights Fare Finder

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

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.

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?

What is the cheapest time of day to fly from AB to STL?

Find hourly flight availability from Alberta to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Alberta to St. Louis by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines to fly from Alberta to St. Louis one-way?

Can I find deals for flights from Alberta to St. Louis that include hotel bookings?

How can I find direct flights from Alberta to St. Louis?

Can I find deals for business class flights from Alberta to St. Louis?

What is the cheapest month to book a flight from Alberta to St. Louis?

Travelling to a place near Alberta?

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.

Alternative routes for Alberta to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Alberta to St. Louis

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?

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

Can Cheapflights 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?

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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 12 June 2025.