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 Delta (C$ 298), WestJet (C$ 312), and United Airlines (C$ 351).

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.

How far in advance should I book a flight from Alberta to St. Louis?

Find a great deal and save up to 58% by booking at least 52 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Alberta to St. Louis within the next two weeks, with the cheapest ticket starting at C$ 558.

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$ 644 on average during January, but can be found for as low as C$ 349.

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$ 253+ Flights from Alberta to St. Louis

Cheap flight deals from Alberta to St. Louis

Round-trip from	C$ 458
One-way from	C$ 253
Popular in	November
Cheapest in	January
Average price	C$ 688

Air Canada
13/6-23/6
2 total stops
16h 33m total
Alberta to St. Louis

Search Deals

15/5
1 total stop
23h 14m total
Alberta to St. Louis

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (C$ 41 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 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 31 March 2025.

Fri 13/68:30 a.m.YYC - STL

1 stop6h 00mMultiple Airlines

Mon 23/61:30 p.m.STL - YYC

1 stop10h 33mMultiple Airlines

Deal found 30/3C$ 458

Thu 10/47:40 a.m.YYC - STL

1 stop9h 50mDelta

Mon 14/42:23 p.m.STL - YYC

1 stop9h 42mDelta

Deal found 30/3C$ 462

Wed 23/46:45 a.m.YYC - STL

1 stop11h 44mAmerican Airlines

Mon 28/45:26 a.m.STL - YYC

1 stop7h 19mAmerican Airlines

Deal found 30/3C$ 471

Thu 12/612:25 a.m.YYC - STL

1 stop11h 11mAir Canada

Mon 23/61:30 p.m.STL - YYC

1 stop10h 33mAir Canada

Deal found 30/3C$ 508

Wed 23/47:00 a.m.YYC - STL

2 stops15h 34mWestJet

Mon 28/46:00 a.m.STL - YYC

2 stops14h 01mWestJet

Deal found 30/3C$ 528

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 31 March 2025.

Fri 13/68:30 a.m.YYC - STL

1 stop6h 00mMultiple Airlines

Mon 23/61:30 p.m.STL - YYC

1 stop10h 33mMultiple Airlines

Deal found 30/3C$ 458

Thu 10/47:40 a.m.YYC - STL

1 stop9h 50mDelta

Mon 14/42:23 p.m.STL - YYC

1 stop9h 42mDelta

Deal found 30/3C$ 462

Wed 23/46:45 a.m.YYC - STL

1 stop11h 44mAmerican Airlines

Mon 28/45:26 a.m.STL - YYC

1 stop7h 19mAmerican Airlines

Deal found 30/3C$ 471

Thu 12/612:25 a.m.YYC - STL

1 stop11h 11mAir Canada

Mon 23/61:30 p.m.STL - YYC

1 stop10h 33mAir Canada

Deal found 30/3C$ 508

Wed 23/47:00 a.m.YYC - STL

2 stops15h 34mWestJet

Mon 28/46:00 a.m.STL - YYC

2 stops14h 01mWestJet

Deal found 30/3C$ 528

Last-minute flights from Alberta to St. Louis
Discover last-minute flight deals from Alberta to St. Louis. Data last updated 31 March 2025 and is based on user searches.

Wed 9/412:05 a.m.YYC - STL

1 stop13h 44mAir Canada

Mon 14/43:30 p.m.STL - YYC

1 stop10h 38mAir Canada

Deal found 30/3C$ 572

Thu 10/47:40 a.m.YYC - STL

1 stop9h 50mDelta

Mon 14/42:23 p.m.STL - YYC

1 stop9h 42mDelta

Deal found 30/3C$ 462

Thu 10/41:30 p.m.YYC - STL

1 stop7h 20mMultiple Airlines

Mon 14/49:39 a.m.STL - YYC

2 stops14h 29mMultiple Airlines

Deal found 30/3C$ 520

Thu 10/47:00 a.m.YYC - STL

2 stops15h 04mWestJet

Mon 14/46:00 a.m.STL - YYC

2 stops14h 40mWestJet

Deal found 30/3C$ 608

Wed 23/46:45 a.m.YYC - STL

1 stop11h 44mAmerican Airlines

Mon 28/45:26 a.m.STL - YYC

1 stop7h 19mAmerican Airlines

Deal found 30/3C$ 471

Wed 23/47:00 a.m.YYC - STL

2 stops15h 34mWestJet

Mon 28/46:00 a.m.STL - YYC

2 stops14h 01mWestJet

Deal found 30/3C$ 528

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 31 March 2025.

Thu 15/58:55 a.m.YYC - STL

1 stop23h 14mMultiple Airlines

Deal found 31/3C$ 253

Wed 16/412:25 p.m.YYC - STL

2 stops10h 09mDelta

Deal found 30/3C$ 298

Thu 15/59:00 a.m.YYC - STL

2 stops13h 26mWestJet

Deal found 31/3C$ 312

Thu 10/47:00 a.m.YEG - STL

2 stops33h 43mMultiple Airlines

Deal found 30/3C$ 339

Wed 9/79:35 a.m.YEG - STL

1 stop13h 04mWestJet

Deal found 30/3C$ 344

Wed 16/46:15 a.m.YYC - STL

1 stop5h 32mUnited Airlines

Deal found 30/3C$ 351

Tue 8/71:05 a.m.YEG - STL

1 stop17h 55mAir Canada

Deal found 30/3C$ 500

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

3 stops24h 28mUnited Airlines

Deal found 30/3C$ 733

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

Fri 13/6

8:30 a.m.-3:30 p.m.

1 stop6h 00m

Lambert-St Louis

Mon 23/6

1:30 p.m.-11:03 p.m.

1 stop10h 33m

C$ 458

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 10/4

7:40 a.m.-6:30 p.m.

1 stop9h 50m

Lambert-St Louis

Mon 14/4

2:23 p.m.-11:05 p.m.

1 stop9h 42m

C$ 462

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 23/4

6:45 a.m.-7:29 p.m.

1 stop11h 44m

Lambert-St Louis

Mon 28/4

5:26 a.m.-11:45 a.m.

1 stop7h 19m

C$ 471

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 12/6

12:25 a.m.-12:36 p.m.

1 stop11h 11m

Lambert-St Louis

Mon 23/6

1:30 p.m.-11:03 p.m.

1 stop10h 33m

C$ 508

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 23/4

7:00 a.m.-11:34 p.m.

2 stops15h 34m

Lambert-St Louis

Mon 28/4

6:00 a.m.-7:01 p.m.

2 stops14h 01m

C$ 528

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 15/5

8:55 a.m.-9:09 a.m.

1 stop23h 14m

C$ 253

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 16/4

12:25 p.m.-11:34 p.m.

2 stops10h 09m

C$ 298

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 15/5

9:00 a.m.-11:26 p.m.

2 stops13h 26m

C$ 312

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Thu 10/4

7:00 a.m.-5:43 p.m.

2 stops33h 43m

C$ 339

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Wed 9/7

9:35 a.m.-11:39 p.m.

1 stop13h 04m

C$ 344

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/3

Showing 1-10 of 13 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

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,899 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,614 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet

7.2

Good

2,789 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Canada

7.0

Good

9,012 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 Delta (C$ 298), WestJet (C$ 312), and United Airlines (C$ 351).
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

St. Peters

Chesterfield

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$ 349	AverageC$ 676	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
WestJet	CheapestC$ 353	AverageC$ 718	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 391	AverageC$ 451	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 460	AverageC$ 764	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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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$ 253

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 15/5. 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 31 March 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 31 March 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 31 March 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 31 March 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 31 March 2025.