What are the cheapest airlines flying from St. Louis to Calgary round-trip?

Cheapflights users have booked flights from St. Louis to Calgary round-trip from $381. Other airlines that can offer you cheap pricing are Air Canada, from $395, and Delta, from $408. Users have found that American Airlines is 32% cheaper than the other options available to this destination.

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

$168 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on WestJet and Delta, with prices starting from $204 and $217, respectively.

What is the cheapest day to fly from St. Louis to Calgary?

Travelers seeking maximum savings on their St. Louis to Calgary flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

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

What is the cheapest day to fly round-trip from St. Louis to Calgary?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Calgary. Check prices with Cheapflights to find a great deal for your trip.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 56 days in advance, which can save you up to 63% on flights from St. Louis to Calgary compared to booking the week you need them. Waiting 56 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $300. For sooner than that we have options available in the next 3 days from $702.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, January can be a great choice for travel to Calgary. Flights to Calgary from St. Louis in January are about $562 on average during January, but can be found for as low as $158.

Most accurate provider : When it comes to deals on St. Louis-Calgary flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Calgary flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Calgary flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Calgary flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Calgary flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

Yes. Cheapflights offers flight deals from St. Louis to Calgary by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$168+ Save on Flights from St. Louis to Calgary

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Lambert-St Louis to Calgary are usually found in January or October, booked 62 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from St. Louis to Calgary

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$381 (American Airlines)
One-way from	$168 (Yatra.com)
Popular in	July
Cheapest in	January
Average price	$601

Provider with most accurate pricing for Lambert-St Louis-Calgary flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Calgary flights.

Search Deals

From Lambert-St Louis to Calgary

Search Deals

One-way flight from Lambert-St Louis to Calgary

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($67 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Find flight deals from St. Louis to Calgary

Cheapest flights from St. Louis to Calgary
Explore the most affordable flight options available from St. Louis to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

vie. 4/186:00 pmSTL - YYC

1 stop19h 35mAmerican Airlines

mar. 4/221:17 pmYYC - STL

1 stop21h 07mAmerican Airlines

Deal found 2/19

$381

vie. 4/189:50 amSTL - YYC

2 stops11h 34mMultiple Airlines

mar. 4/221:20 pmYYC - STL

1 stop9h 39mMultiple Airlines

Deal found 2/19

$393

mar. 3/188:20 amSTL - YYC

1 stop7h 01mAir Canada

mié. 3/266:15 amYYC - STL

1 stop7h 51mAir Canada

Deal found 2/19

$395

mar. 3/185:00 pmSTL - YYC

1 stop7h 16mDelta

mié. 3/267:40 amYYC - STL

2 stops14h 46mDelta

Deal found 2/20

$408

jue. 3/136:00 amSTL - YYC

1 stop15h 42mWestJet

lun. 3/2412:30 amYYC - STL

1 stop10h 30mWestJet

Deal found 2/19

$425

lun. 3/106:30 amSTL - YYC

2 stops16h 11mUnited Airlines

lun. 3/177:20 pmYYC - STL

2 stops19h 11mUnited Airlines

Deal found 2/20

$436

sáb. 8/167:30 pmSTL - YYC

1 stop16h 07mAlaska Airlines

jue. 8/287:00 amYYC - STL

1 stop10h 37mAlaska Airlines

Deal found 2/20

$626

Best flights from St. Louis to Calgary
Discover carefully curated flight deals from St. Louis to Calgary that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated febrero 20, 2025.

vie. 4/186:00 pmSTL - YYC

1 stop19h 35mAmerican Airlines

mar. 4/221:17 pmYYC - STL

1 stop21h 07mAmerican Airlines

Deal found 2/19

$381

vie. 4/189:50 amSTL - YYC

2 stops11h 34mMultiple Airlines

mar. 4/221:20 pmYYC - STL

1 stop9h 39mMultiple Airlines

Deal found 2/19

$393

mar. 3/188:20 amSTL - YYC

1 stop7h 01mAir Canada

mié. 3/266:15 amYYC - STL

1 stop7h 51mAir Canada

Deal found 2/19

$395

mar. 3/185:00 pmSTL - YYC

1 stop7h 16mDelta

mié. 3/267:40 amYYC - STL

2 stops14h 46mDelta

Deal found 2/20

$408

jue. 3/136:00 amSTL - YYC

1 stop15h 42mWestJet

lun. 3/2412:30 amYYC - STL

1 stop10h 30mWestJet

Deal found 2/19

$425

lun. 3/106:30 amSTL - YYC

2 stops16h 11mUnited Airlines

lun. 3/177:20 pmYYC - STL

2 stops19h 11mUnited Airlines

Deal found 2/20

$436

sáb. 8/167:30 pmSTL - YYC

1 stop16h 07mAlaska Airlines

jue. 8/287:00 amYYC - STL

1 stop10h 37mAlaska Airlines

Deal found 2/20

$626

Last-minute flights from St. Louis to Calgary
Discover last-minute flight deals from St. Louis to Calgary. Data last updated febrero 20, 2025 and is based on user searches.

dom. 2/2311:08 pmSTL - YYC

2 stops33h 26mMultiple Airlines

mar. 2/256:55 pmYYC - STL

1 stop21h 48mMultiple Airlines

Deal found 2/19

$409

mar. 2/256:26 pmSTL - YYC

1 stop29h 29mMultiple Airlines

jue. 2/277:00 amYYC - STL

2 stops8h 53mMultiple Airlines

Deal found 2/20

$427

mar. 2/256:00 amSTL - YYC

2 stops14h 05mWestJet

jue. 2/277:00 amYYC - STL

2 stops8h 53mWestJet

Deal found 2/20

$569

mié. 2/265:00 pmSTL - YYC

1 stop7h 15mDelta

dom. 3/26:35 amYYC - STL

1 stop9h 18mDelta

Deal found 2/18

$479

mié. 2/266:30 amSTL - YYC

1 stop6h 09mAir Canada

sáb. 3/112:05 amYYC - STL

1 stop14h 01mAir Canada

Deal found 2/18

$498

lun. 3/105:37 pmSTL - YYC

1 stop19h 12mAmerican Airlines

lun. 3/171:22 pmYYC - STL

1 stop19h 20mAmerican Airlines

Deal found 2/20

$382

lun. 3/106:30 amSTL - YYC

2 stops16h 11mUnited Airlines

lun. 3/177:20 pmYYC - STL

2 stops19h 11mUnited Airlines

Deal found 2/20

$436

jue. 3/136:00 amSTL - YYC

1 stop15h 42mWestJet

lun. 3/2412:30 amYYC - STL

1 stop10h 30mWestJet

Deal found 2/19

$425

mar. 3/188:20 amSTL - YYC

1 stop7h 01mAir Canada

mié. 3/266:15 amYYC - STL

1 stop7h 51mAir Canada

Deal found 2/19

$395

mar. 3/185:00 pmSTL - YYC

1 stop7h 16mDelta

mié. 3/267:40 amYYC - STL

2 stops14h 46mDelta

Deal found 2/20

$408

One-way flights from St. Louis to Calgary
Search for one-way flight options from St. Louis to Calgary. Find affordable one-way fares based on user searches. Data last updated febrero 20, 2025.

sáb. 4/56:30 amSTL - YYC

1 stop6h 11mAir Canada

Deal found 2/18

$168

lun. 8/49:49 pmSTL - YYC

1 stop15h 03mMultiple Airlines

Deal found 2/20

$189

dom. 4/276:00 amSTL - YYC

1 stop30h 19mWestJet

Deal found 2/19

$204

dom. 4/276:00 amSTL - YYC

2 stops13h 28mDelta

Deal found 2/19

$217

lun. 8/45:27 pmSTL - YYC

2 stops25h 53mUnited Airlines

Deal found 2/20

$272

Find flights from St. Louis to Calgary within your budget

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

vie. 4/18

6:00 pm-12:35 pm

1 stop19h 35m

Calgary

mar. 4/22

1:17 pm-11:24 am

1 stop21h 07m

$381

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

vie. 4/18

9:50 am-8:24 pm

2 stops11h 34m

Calgary

mar. 4/22

1:20 pm-11:59 pm

1 stop9h 39m

$393

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

mar. 3/18

8:20 am-2:21 pm

1 stop7h 01m

Calgary

mié. 3/26

6:15 am-3:06 pm

1 stop7h 51m

$395

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

mar. 3/18

5:00 pm-11:16 pm

1 stop7h 16m

Calgary

mié. 3/26

7:40 am-11:26 pm

2 stops14h 46m

$408

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

jue. 3/13

6:00 am-8:42 pm

1 stop15h 42m

Calgary

lun. 3/24

12:30 am-12:00 pm

1 stop10h 30m

$425

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

lun. 3/10

6:30 am-9:41 pm

2 stops16h 11m

Calgary

lun. 3/17

7:20 pm-3:31 pm

2 stops19h 11m

$436

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

sáb. 8/16

7:30 pm-10:37 am

1 stop16h 07m

Calgary

jue. 8/28

7:00 am-6:37 pm

1 stop10h 37m

$626

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

sáb. 4/5

6:30 am-11:41 am

1 stop6h 11m

$168

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

lun. 8/4

9:49 pm-11:52 am

1 stop15h 03m

$189

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

dom. 4/27

6:00 am-11:19 am

1 stop30h 19m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 12 results

Compare providers for flights from St. Louis to Calgary

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Calgary in February.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Calgary flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Calgary flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Calgary flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Calgary flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Calgary flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Calgary 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.

Travel insights for flights from St. Louis to Calgary

Get recent, data-driven insights about flights from St. Louis to Calgary including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Calgary?

The price you pay for your flight from St. Louis to Calgary may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Calgary (average of $300). Flying from St. Louis to Calgary in March is currently the most expensive (average of $433). 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 STL to YYC?

When flying from St. Louis to Calgary, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 21% versus a flight in the morning.

Rainfall in Calgary by month

In terms of precipitation, rainfall in Calgary ranges from 0.4 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. January is typically the driest time to visit Calgary when rainfall is around 0.4 in.

Temperature in Calgary by month

If weather is an important factor for your trip to Calgary, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 19.4 F).

Reviews of airlines servicing Calgary

Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from St. Louis to Calgary to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,697 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,697 reviews

Alaska Airlines

8.0

Very good

9,697 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

8,219 reviews

Alaska Airlines

8.0

Very good

9,697 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,765 reviews

Alaska Airlines

8.0

Very good

9,697 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,697 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet

7.2

Good

2,801 reviews

Alaska Airlines

8.0

Very good

9,697 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What are the cheapest airlines flying from St. Louis to Calgary round-trip?
Cheapflights users have booked flights from St. Louis to Calgary round-trip from $381. Other airlines that can offer you cheap pricing are Air Canada, from $395, and Delta, from $408. Users have found that American Airlines is 32% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from St. Louis to Calgary one-way?
$168 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on WestJet and Delta, with prices starting from $204 and $217, respectively.
Can I find deals for flights from St. Louis to Calgary that include hotel bookings?
Yes. In addition to deals on St. Louis to Calgary flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Calgary?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Calgary.
Can I find deals for business class flights from St. Louis to Calgary?
Yes. Cheapflights offers flight deals from St. Louis to Calgary 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 Calgary?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Calgary (average of $300). Flying from St. Louis to Calgary in March is currently the most expensive (average of $433). 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.

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Top 5 airlines flying from St. Louis to Calgary

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$187	Average$595	FlexibilityNo cancel fee	On-time67%
Delta	Cheapest$323	Average$458	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$343	Average$659	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$375	Average$632	FlexibilityNo cancel fee	On-time71%
WestJet	Cheapest$398	Average$635	FlexibilityNo cancel fee	On-time60%

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$168+ Cheap flights from St. Louis (STL) to Calgary (YYC)

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Calgary with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Lambert-St Louis to Calgary are usually found in January or October, booked 62 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from St. Louis to Calgary

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Calgary

Cheapest flights from St. Louis to CalgaryExplore the most affordable flight options available from St. Louis to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

Explore the most affordable flight options available from St. Louis to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

Find flights from St. Louis to Calgary within your budget

Compare providers for flights from St. Louis to Calgary

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Calgary in February.

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

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

Travel insights for flights from St. Louis to Calgary

Get recent, data-driven insights about flights from St. Louis to Calgary including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Calgary?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Calgary. Price data was last updated on February 14, 2025.

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

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

Find hourly flight availability from St. Louis to Calgary. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

Rainfall in Calgary by month

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

Temperature in Calgary by month

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

Reviews of airlines servicing Calgary

Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from St. Louis to Calgary to help guide your decision. Users have also rated airlines in terms of 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 Calgary. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from St. Louis to Calgary round-trip?

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

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

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

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

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

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Alternative routes for St. Louis to Calgary

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Top 5 airlines flying from St. Louis to Calgary

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Cheapest flights from St. Louis to Calgary
Explore the most affordable flight options available from St. Louis to Calgary. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.