In terms of precipitation, rainfall in Alberta ranges from 9.0 - 94.0 mm per month. June is typically the wettest month, when rainfall can reach 94.0 mm. January is typically the driest time to visit Alberta when rainfall is around 9.0 mm.

If weather is an important factor for your trip to Alberta, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -7.0 C).

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

Travellers have found it’s best to book a flight 27 days in advance to save up to 278% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 27 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Alberta 1-2 weeks in advance for as low as C$ 247, or C$ 968 for flights within the next 24 hours.

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

Our data shows that January tends to be the cheapest month to fly to Alberta from St. Louis. Users have commonly found prices around C$ 775 for the month, but tickets can be as low as C$ 218. Due to multiple factors, prepare for potentially higher prices in July.

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

When flying from St. Louis to Alberta, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from St. Louis to Alberta?

Located just 20.4 km from the city centre, Lambert-St Louis (STL) is the airport most travellers will use when flying to Alberta from St. Louis.

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

Yes. In addition to deals on St. Louis to Alberta flights, Cheapflights offers vacation packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Alberta.

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

Yes. Cheapflights offers flight deals from St. Louis to Alberta 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$ 156+ Flights from St. Louis to Alberta

Q: How much does it cost to fly round-trip from St. Louis to Alberta?

Airfare is below average for this route at the moment. St. Louis to Alberta flights typically cost between C$ 659 and C$ 890 in September. The cheapest round-trip price found within the last 3 days was C$ 451 on American Airlines (3 Sep-10 Sep).

Cheap flight deals from St. Louis to Alberta

Round-trip from	C$ 451
One-way from	C$ 156
Popular in	July
Cheapest in	January
Average price	C$ 887

American Airlines
13/9-20/9
2 total stops
27h 26m total
St. Louis to Alberta

Search Deals

13/9
1 total stop
19h 50m total
St. Louis to Alberta

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (C$ 77 potential increase over avg. RT price).

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 July 2025

Search Deals

Find flight deals from St. Louis to Alberta

Cheapest flights from St. Louis to Alberta
Explore the most affordable flight options available from St. Louis to Alberta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Sat 13/99:56 a.m.STL - YYC

1 stop14h 23mAmerican Airlines

Sat 20/96:29 a.m.YYC - STL

1 stop13h 03mAmerican Airlines

Deal found 29/7C$ 451

Fri 22/87:54 p.m.STL - YYC

1 stop19h 52mMultiple Airlines

Fri 29/812:30 a.m.YYC - STL

1 stop12h 03mMultiple Airlines

Deal found 30/7C$ 491

Thu 11/912:05 p.m.STL - YEG

3 stops27h 52mMultiple Airlines

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

3 stops27h 35mMultiple Airlines

Deal found 29/7C$ 509

Sat 6/99:15 a.m.STL - YYC

1 stop8h 47mAir Canada

Mon 15/911:55 p.m.YYC - STL

2 stops13h 24mAir Canada

Deal found 29/7C$ 555

Sat 13/910:15 a.m.STL - YYC

2 stops11h 27mDelta

Sat 20/96:40 a.m.YYC - STL

1 stop8h 34mDelta

Deal found 29/7C$ 568

Sun 7/96:30 p.m.STL - YEG

1 stop17h 24mAlaska Airlines

Tue 23/95:17 p.m.YEG - STL

1 stop20h 22mAlaska Airlines

Deal found 30/7C$ 599

Sat 13/95:15 a.m.STL - YYC

1 stop17h 33mUnited Airlines

Sat 20/96:15 a.m.YYC - STL

1 stop16h 38mUnited Airlines

Deal found 30/7C$ 623

Sun 7/96:35 a.m.STL - YEG

2 stops16h 29mUnited Airlines

Tue 23/93:17 p.m.YEG - STL

2 stops22h 02mUnited Airlines

Deal found 30/7C$ 730

Wed 10/99:15 a.m.STL - YEG

2 stops11h 48mAir Canada

Wed 17/99:25 a.m.YEG - STL

1 stop9h 13mAir Canada

Deal found 29/7C$ 743

Fri 22/811:23 a.m.STL - YEG

2 stops10h 49mWestJet

Mon 25/87:00 a.m.YEG - STL

2 stops15h 24mWestJet

Deal found 29/7C$ 750

Thu 11/912:15 p.m.STL - YEG

2 stops13h 12mDelta

Sat 13/99:25 a.m.YEG - STL

2 stops11h 35mDelta

Deal found 29/7C$ 844

Best flights from St. Louis to Alberta
Discover carefully curated flight deals from St. Louis to Alberta that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 July 2025.

Wed 3/99:56 a.m.STL - YYC

1 stop14h 23mAmerican Airlines

Wed 10/96:29 a.m.YYC - STL

1 stop14h 24mAmerican Airlines

Deal found 28/7C$ 451

Thu 4/99:50 a.m.STL - YYC

2 stops11h 12mMultiple Airlines

Sun 7/94:20 p.m.YYC - STL

1 stop15h 46mMultiple Airlines

Deal found 28/7C$ 472

Sat 6/99:15 a.m.STL - YYC

1 stop8h 47mAir Canada

Mon 15/911:55 p.m.YYC - STL

2 stops13h 24mAir Canada

Deal found 29/7C$ 555

Sat 13/910:15 a.m.STL - YYC

2 stops11h 27mDelta

Sat 20/96:40 a.m.YYC - STL

1 stop8h 34mDelta

Deal found 29/7C$ 568

Sun 7/96:30 p.m.STL - YEG

1 stop17h 24mAlaska Airlines

Tue 23/95:17 p.m.YEG - STL

1 stop20h 22mAlaska Airlines

Deal found 29/7C$ 599

Sat 13/95:15 a.m.STL - YYC

1 stop17h 33mUnited Airlines

Sat 20/96:15 a.m.YYC - STL

1 stop16h 38mUnited Airlines

Deal found 30/7C$ 623

Fri 22/811:23 a.m.STL - YEG

2 stops10h 49mWestJet

Mon 25/87:00 a.m.YEG - STL

2 stops15h 24mWestJet

Deal found 29/7C$ 750

Thu 11/912:05 p.m.STL - YEG

3 stops27h 52mMultiple Airlines

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

3 stops27h 35mMultiple Airlines

Deal found 29/7C$ 509

Sun 7/96:35 a.m.STL - YEG

2 stops16h 29mUnited Airlines

Tue 23/93:17 p.m.YEG - STL

2 stops22h 02mUnited Airlines

Deal found 30/7C$ 730

Wed 10/99:15 a.m.STL - YEG

2 stops11h 48mAir Canada

Wed 17/99:25 a.m.YEG - STL

1 stop9h 13mAir Canada

Deal found 29/7C$ 743

Thu 11/912:15 p.m.STL - YEG

2 stops13h 12mDelta

Sat 13/99:25 a.m.YEG - STL

2 stops11h 35mDelta

Deal found 29/7C$ 844

Last-minute flights from St. Louis to Alberta
Discover last-minute flight deals from St. Louis to Alberta. Data last updated 30 July 2025 and is based on user searches.

Sun 3/86:45 a.m.STL - YEG

1 stop13h 50mMultiple Airlines

Mon 11/87:10 a.m.YEG - STL

2 stops32h 21mMultiple Airlines

Deal found 30/7C$ 1,437

Mon 11/84:45 p.m.STL - YEG

1 stop6h 19mUnited Airlines

Thu 14/83:17 p.m.YEG - STL

1 stop5h 33mUnited Airlines

Deal found 29/7C$ 1,939

Tue 12/81:30 p.m.STL - YYC

1 stop10h 43mAir Canada

Tue 19/87:10 a.m.YYC - STL

1 stop7h 11mAir Canada

Deal found 29/7C$ 626

Tue 12/85:00 a.m.STL - YYC

1 stop7h 36mUnited Airlines

Tue 19/86:15 a.m.YYC - STL

1 stop13h 31mUnited Airlines

Deal found 30/7C$ 752

Fri 22/87:54 p.m.STL - YYC

1 stop19h 52mMultiple Airlines

Fri 29/812:30 a.m.YYC - STL

1 stop12h 03mMultiple Airlines

Deal found 30/7C$ 491

Fri 22/86:30 p.m.STL - YEG

1 stop17h 24mAlaska Airlines

Mon 25/811:44 a.m.YEG - STL

1 stop28h 50mAlaska Airlines

Deal found 28/7C$ 637

Fri 22/811:23 a.m.STL - YEG

2 stops10h 49mWestJet

Mon 25/87:00 a.m.YEG - STL

2 stops15h 24mWestJet

Deal found 29/7C$ 750

Fri 22/81:30 p.m.STL - YEG

1 stop9h 19mAir Canada

Mon 25/86:15 a.m.YEG - STL

2 stops12h 45mAir Canada

Deal found 29/7C$ 814

Tue 26/86:06 a.m.STL - YYC

1 stop18h 23mAmerican Airlines

Sun 31/86:29 a.m.YYC - STL

1 stop14h 46mAmerican Airlines

Deal found 29/7C$ 498

Tue 26/811:29 a.m.STL - YYC

2 stops12h 28mDelta

Sun 31/86:40 a.m.YYC - STL

1 stop6h 50mDelta

Deal found 29/7C$ 703

One-way flights from St. Louis to Alberta
Search for one-way flight options from St. Louis to Alberta. Find affordable one-way fares based on user searches. Data last updated 30 July 2025.

Sat 13/97:55 p.m.STL - YYC

1 stop19h 50mMultiple Airlines

Deal found 30/7C$ 156

Tue 5/81:00 p.m.STL - YEG

3 stops36h 27mMultiple Airlines

Deal found 28/7C$ 393

Tue 5/83:59 p.m.STL - YEG

2 stops21h 53mWestJet

Deal found 28/7C$ 553

Tue 5/87:32 p.m.STL - YEG

1 stop16h 09mAlaska Airlines

Deal found 28/7C$ 612

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 3/9

9:56 a.m.-11:19 p.m.

1 stop14h 23m

Calgary

Wed 10/9

6:29 a.m.-9:53 p.m.

1 stop14h 24m

C$ 451

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 4/9

9:50 a.m.-8:02 p.m.

2 stops11h 12m

Calgary

Sun 7/9

4:20 p.m.-9:06 a.m.

1 stop15h 46m

C$ 472

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Thu 11/9

12:05 p.m.-2:57 p.m.

3 stops27h 52m

Edmonton

Sat 13/9

6:15 a.m.-10:50 a.m.

3 stops27h 35m

C$ 509

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 6/9

9:15 a.m.-5:02 p.m.

1 stop8h 47m

Calgary

Mon 15/9

11:55 p.m.-2:19 p.m.

2 stops13h 24m

C$ 555

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 13/9

10:15 a.m.-8:42 p.m.

2 stops11h 27m

Calgary

Sat 20/9

6:40 a.m.-4:14 p.m.

1 stop8h 34m

C$ 568

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Sun 7/9

6:30 p.m.-10:54 a.m.

1 stop17h 24m

Edmonton

Tue 23/9

5:17 p.m.-2:39 p.m.

1 stop20h 22m

C$ 599

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 13/9

5:15 a.m.-9:48 p.m.

1 stop17h 33m

Calgary

Sat 20/9

6:15 a.m.-11:53 p.m.

1 stop16h 38m

C$ 623

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Sun 7/9

6:35 a.m.-10:04 p.m.

2 stops16h 29m

Edmonton

Tue 23/9

3:17 p.m.-2:19 p.m.

2 stops22h 02m

C$ 730

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Wed 10/9

9:15 a.m.-8:03 p.m.

2 stops11h 48m

Edmonton

Wed 17/9

9:25 a.m.-7:38 p.m.

1 stop9h 13m

C$ 743

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Fri 22/8

11:23 a.m.-9:12 p.m.

2 stops10h 49m

Edmonton

Mon 25/8

7:00 a.m.-11:24 p.m.

2 stops15h 24m

C$ 750

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Showing 1-10 of 15 results

Best time to book a flight from St. Louis to Alberta

Have a flexible travel schedule? Discover the best time to fly to Alberta from St. Louis 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 St. Louis to Alberta

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Alberta (average of C$ 139). Flying from St. Louis to Alberta in July is currently the most expensive (average of C$ 263). 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 St. Louis to Alberta?

Reviews of airlines servicing Alberta

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from St. Louis to Alberta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,980 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

United Airlines

7.4

Good

8,896 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

WestJet

7.2

Good

2,975 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What airport do you fly from for flights from St. Louis to Alberta?
Located just 20.4 km from the city centre, Lambert-St Louis (STL) is the airport most travellers will use when flying to Alberta from St. Louis.
Can I find deals for flights from St. Louis to Alberta that include hotel bookings?
Yes. In addition to deals on St. Louis to Alberta flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Alberta?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Alberta.
Can I find deals for business class flights from St. Louis to Alberta?
Yes. Cheapflights offers flight deals from St. Louis to Alberta 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 St. Louis to Alberta?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Alberta (average of C$ 139). Flying from St. Louis to Alberta in July is currently the most expensive (average of C$ 263). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Alberta

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How does Cheapflights help users find flights from St. Louis to Alberta?

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

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to Alberta for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from St. Louis to Alberta with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for St. Louis to Alberta flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from St. Louis to Alberta from C$ 156

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. Louis to Alberta

Keep the following information in mind while searching for St. Louis to Alberta flight deals. Data was last updated 30 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Alberta

Cheapest flights from St. Louis to AlbertaExplore the most affordable flight options available from St. Louis to Alberta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Explore the most affordable flight options available from St. Louis to Alberta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from St. Louis to Alberta

Have a flexible travel schedule? Discover the best time to fly to Alberta from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Alberta

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

How much does it cost to fly round-trip from St. Louis to Alberta?

Reviews of airlines servicing Alberta

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from St. Louis to Alberta. 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 St. Louis to Alberta. 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 from for flights from St. Louis to Alberta?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Alberta

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

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 St. Louis to Alberta?

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

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

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

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Cheapest flights from St. Louis to Alberta
Explore the most affordable flight options available from St. Louis to Alberta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 July 2025.