Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Alberta from $142

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Alberta departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Alberta

Cheap round-trip flights

Logo
7:54 pm - 2:45 pmSTL-YYC
19h 51m1 stop
Logo
8:55 am - 9:06 amYYC-STL
23h 11m1 stop
$272
Find Deal
Wed, Sep 3 - Sun, Sep 7
Logo
7:55 pm - 8:00 pmSTL-YYC
25h 05m2 stops
Logo
8:55 am - 9:07 amYYC-STL
23h 12m1 stop
$304
Find Deal
Wed, Oct 1 - Mon, Oct 6
American Airlines Logo
7:23 am - 11:19 pmSTL-YYC
16h 56m1 stop
American Airlines Logo
6:29 am - 9:53 pmYYC-STL
14h 24m1 stop
$339American Airlines
Find Deal
Thu, Sep 18 - Tue, Sep 23
American Airlines Logo
8:04 pm - 12:34 pmSTL-YYC
17h 30m1 stop
American Airlines Logo
1:29 pm - 8:09 amYYC-STL
17h 40m1 stop
$341American Airlines
Find Deal
Wed, Oct 8 - Mon, Oct 13
United Airlines Logo
12:25 pm - 11:38 amSTL-YYC
24h 13m1 stop
United Airlines Logo
12:37 pm - 2:25 pmYYC-STL
24h 48m1 stop
$397United Airlines
Find Deal
Thu, Oct 23 - Fri, Oct 31
United Airlines Logo
6:35 am - 10:04 pmSTL-YEG
16h 29m2 stops
United Airlines Logo
3:17 pm - 2:19 pmYEG-STL
22h 02m2 stops
$418United Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Air Canada Logo
4:05 pm - 1:12 amSTL-YYC
10h 07m1 stop
Air Canada Logo
12:20 am - 3:18 pmYYC-STL
13h 58m1 stop
$523Air Canada
Find Deal
Wed, Sep 3 - Fri, Sep 5
WestJet Logo
11:29 am - 3:59 pmSTL-YEG
5h 30m1 stop
WestJet Logo
9:25 am - 11:09 pmYEG-STL
12h 44m1 stop
$619WestJet
Find Deal
Wed, Sep 10 - Wed, Sep 17
Air Canada Logo
5:15 am - 2:10 pmSTL-YEG
9h 55m2 stops
Air Canada Logo
8:00 am - 8:46 pmYEG-STL
11h 46m2 stops
$638Air Canada
Find Deal
Wed, Sep 10 - Wed, Sep 17
WestJet Logo
11:29 am - 3:59 pmSTL-YEG
5h 30m1 stop
WestJet Logo
9:25 am - 11:09 pmYEG-STL
12h 44m1 stop
$647WestJet
Find Deal
Wed, Sep 10 - Wed, Sep 17

United Airlines flights from St. Louis to Alberta

Our best United Airlines deals on St. Louis to Alberta flight tickets
United Airlines
Oct 23
STL12:25 pmLambert-St Louis
24h 13m
1 stop
YYC11:38 amCalgary
Oct 31
YYC12:37 pmCalgary
24h 48m
1 stop
STL2:25 pmLambert-St Louis
$397
Find similar
United Airlines
Sep 10
STL6:35 amLambert-St Louis
16h 29m
2 stops
YEG10:04 pmEdmonton
Sep 17
YEG3:17 pmEdmonton
22h 02m
2 stops
STL2:19 pmLambert-St Louis
$418
Find similar
United Airlines
Oct 23
STL12:25 pmLambert-St Louis
24h 13m
1 stop
YYC11:38 amCalgary
Oct 31
YYC12:37 pmCalgary
24h 48m
1 stop
STL2:25 pmLambert-St Louis
$437
Find similar

American Airlines flights from St. Louis to Alberta

Our best American Airlines deals on St. Louis to Alberta flight tickets
American Airlines
Sep 18
STL7:23 amLambert-St Louis
16h 56m
1 stop
YYC11:19 pmCalgary
Sep 23
YYC6:29 amCalgary
14h 24m
1 stop
STL9:53 pmLambert-St Louis
$339
Find similar
American Airlines
Oct 8
STL8:04 pmLambert-St Louis
17h 30m
1 stop
YYC12:34 pmCalgary
Oct 13
YYC1:29 pmCalgary
17h 40m
1 stop
STL8:09 amLambert-St Louis
$341
Find similar
American Airlines
Sep 18
STL6:05 amLambert-St Louis
18h 14m
1 stop
YYC11:19 pmCalgary
Sep 22
YYC6:29 amCalgary
12h 56m
1 stop
STL8:25 pmLambert-St Louis
$352
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Alberta 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, momondo users made 832,500 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from St. Louis to Alberta that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 9/3

7:54 pm-2:45 pm

1 stop19h 51m

Calgary

Sun 9/7

8:55 am-9:06 am

1 stop23h 11m

$272

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 10/1

7:55 pm-8:00 pm

2 stops25h 05m

Calgary

Mon 10/6

8:55 am-9:07 am

1 stop23h 12m

$304

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 9/18

7:23 am-11:19 pm

1 stop16h 56m

Calgary

Tue 9/23

6:29 am-9:53 pm

1 stop14h 24m

$339

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 10/8

8:04 pm-12:34 pm

1 stop17h 30m

Calgary

Mon 10/13

1:29 pm-8:09 am

1 stop17h 40m

$341

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 10/23

12:25 pm-11:38 am

1 stop24h 13m

Calgary

Fri 10/31

12:37 pm-2:25 pm

1 stop24h 48m

$397

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Wed 9/10

6:35 am-10:04 pm

2 stops16h 29m

Edmonton

Wed 9/17

3:17 pm-2:19 pm

2 stops22h 02m

$418

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Wed 9/3

4:05 pm-1:12 am

1 stop10h 07m

Calgary

Fri 9/5

12:20 am-3:18 pm

1 stop13h 58m

$523

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Wed 9/10

11:29 am-3:59 pm

1 stop5h 30m

Edmonton

Wed 9/17

9:25 am-11:09 pm

1 stop12h 44m

$619

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Wed 9/10

5:15 am-2:10 pm

2 stops9h 55m

Edmonton

Wed 9/17

8:00 am-8:46 pm

2 stops11h 46m

$638

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Wed 9/10

11:29 am-3:59 pm

1 stop5h 30m

Edmonton

Wed 9/17

9:25 am-11:09 pm

1 stop12h 44m

$647

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Alberta from

How to get the cheapest flight ticket from St. Louis to Alberta

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Alberta?

The month of January is, on average, the cheapest month to fly to Alberta from St. Louis, with most prices found around $361. If you don’t want to visit Alberta in January, then you should wait until April to fly from St. Louis, when ticket prices are also cheap, with an average price of $488.

What is the cheapest day to depart on your flight to Alberta?

According to our data, Tuesday is the cheapest day to fly to Alberta from St. Louis. The lowest ticket price found for a Tuesday departure recently was $456. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $617. These prices are subject to change though, so be sure to set up a Price Alert for flights to Alberta.

What is the cheapest time of day to depart on your flight to Alberta?

According to our data, the cheapest time of day to fly to Alberta is at noon. momondo users have found flights departing from St. Louis to Alberta at noon for as low as $499. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Alberta, so prices are often more expensive at around $628 per ticket.

How far in advance should I book a flight to Alberta?

You are more likely to see cheaper flights to Alberta from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Alberta for around $559 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Alberta from St. Louis for as low as $395 on momondo.

Can stopping save me money on St. Louis to Alberta flights?

You could potentially save up to 28% on your flight if you consider stops on a St. Louis to Alberta flight.

Cheap St. Louis to Alberta flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Alberta

Direct flights

None
There are no direct flights from St. Louis to Alberta. There are no popular flight routes from St. Louis to Alberta.
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Alberta?

    Prices for flights from Lambert-St Louis Airport to Alberta are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Alberta?

  • How old do you have to be to fly from Lambert-St Louis Airport to Alberta?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Alberta.

  • What documentation or ID do you need to fly to Alberta?

    The travel and health documents you'll need for your trip to Alberta may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Alberta. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Alberta

Compare and see reviews for airlines that fly from St. Louis to Alberta with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $168Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
DeltaPriceFrom $168Free CancellationRating
7.9
7,982 reviews
Search Delta flights
United AirlinesPriceFrom $343Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
American AirlinesPriceFrom $383Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
WestJetPriceFrom $453Free CancellationRating
7.2
3,032 reviews
Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Alberta?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Alberta for you.

Can I find flights from St. Louis to Alberta with flexible booking policies on momondo?

momondo does allow users to show only those flights to Alberta from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Alberta?

Once you have performed a search for St. Louis to Alberta flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Alberta right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Alberta, momondo offers a useful price alert feature which will track prices for flights to Alberta from St. Louis and alert you when they change.

An easier way to manage your Alberta trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 8/25
Mon 9/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Alberta

Popular cities in Alberta

Popular flights according to clicks in the last 7 days on momondo
Flights to Torontofrom $93
Flights to Vancouverfrom $79
Flights to Montrealfrom $181
Flights to Calgaryfrom $145
Flights to Ottawafrom $222
Flights to Halifaxfrom $139
Flights to Winnipegfrom $170
Flights to Québec Cityfrom $142
Flights to Saskatoonfrom $146
Flights to Kelownafrom $175
Flights to St. John'sfrom $261
Flights to Reginafrom $224