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St. Louis

$167+ Cheap flights from Calgary (YYC) to St. Louis (STL)

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — STL
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Calgary to Lambert-St Louis are usually found in March or May, booked 82 days in advance, depart on a Friday or Tuesday and return on a Tuesday

Cheap flight deals from Calgary to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

November

Cheapest in

March

Round-trip from

$299
(United Airlines)

One-way from

$167
(Air Canada)
Provider with most accurate pricing for Calgary-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Calgary-Lambert-St Louis flights.
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High demand for flights, 25% potential price rise
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Best time to find cheap flights, 28% potential price drop
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From Calgary to Lambert-St Louis
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One-way flight from Calgary to Lambert-St Louis
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Find flight deals from Calgary to St. Louis

Cheapest flights from Calgary to St. Louis
Explore the most affordable flight options available from Calgary to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/277:00 amYYC - STL
2 stops15h 41mDelta
Tue 12/37:15 amSTL - YYC
2 stops16h 54mDelta
Deal found 11/18$349
This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2712:45 pmYYC - STL
1 stop8h 53mAmerican Airlines
Tue 12/34:03 pmSTL - YYC
1 stop6h 48mAmerican Airlines
Deal found 11/18$358
This FlightHub deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/212:20 amYYC - STL
2 stops10h 44mWestJet
Tue 12/35:05 pmSTL - YYC
2 stops29h 41mWestJet
Deal found 11/18$392
This United Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:19 amYYC - STL
1 stop5h 24mMultiple Airlines
Tue 12/33:50 pmSTL - YYC
1 stop8h 28mMultiple Airlines
Deal found 11/18$473
This Air Canada deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2612:50 amYYC - STL
1 stop13h 16mAir Canada
Tue 12/34:31 pmSTL - YYC
1 stop6h 10mAir Canada
Deal found 11/18$521

Find flights from Calgary to St. Louis within your budget

Customize your flight search to find flights from Calgary to St. Louis 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, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 1/17

2:09 pm-8:43 pm

1 stop5h 34m

Lambert-St Louis

Mon 1/20

4:36 pm-9:41 pm

1 stop6h 05m

$299

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 1/17

6:35 am-8:56 pm

2 stops13h 21m

Lambert-St Louis

Mon 1/20

3:35 pm-8:53 pm

1 stop6h 18m

$300

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 1/10

6:15 am-3:06 pm

1 stop7h 51m

Lambert-St Louis

Mon 1/13

3:50 pm-11:18 pm

1 stop8h 28m

$305

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Fri 1/17

9:45 pm-6:02 pm

2 stops19h 17m

Lambert-St Louis

Mon 1/20

5:30 pm-7:08 pm

2 stops26h 38m

$325

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 12/3

6:19 am-12:43 pm

1 stop5h 24m

Lambert-St Louis

Tue 12/3

3:50 pm-11:18 pm

1 stop8h 28m

$473

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 1/4

6:24 am-7:30 pm

1 stop12h 06m

Lambert-St Louis

Sat 1/11

3:41 pm-9:57 pm

1 stop7h 16m

$568

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 12/4

6:15 am-3:06 pm

1 stop7h 51m

$167

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 12/4

12:30 pm-9:55 pm

2 stops8h 25m

$204

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 12/4

6:40 am-3:21 pm

3 stops31h 41m

$277

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 12/23

12:45 pm-10:45 am

1 stop21h 00m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 11 results
1
2

Compare providers for flights from Calgary to St. Louis

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 Calgary to St. Louis in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Calgary-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Calgary-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Calgary-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Calgary-St. Louis 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 Calgary-St. Louis 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 Calgary to St. Louis

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Calgary to St. Louis. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from Calgary to St. Louis, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Calgary to St. Louis (average of $308). Flying from Calgary to St. Louis in March is currently the most expensive (average of $357). 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 YYC to STL?

Find hourly flight availability from Calgary 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 November 20, 2024.

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

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown Air Canada, Delta and American Airlines from Calgary to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 10

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

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 10

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

United Airlines
7.4
Good
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 10

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

WestJet
7.3
Good
2,811 reviews
Delta
8.0
Very good
8,756 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 10

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
8,756 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 10

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

Air Canada
7.0
Good
8,237 reviews
Delta
8.0
Very good
8,756 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 10

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

Related info for your journey

Find useful and relevant information for your journey from Calgary 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 are the cheapest airlines flying from Calgary to St. Louis round-trip?

    United Airlines, at $299, was found to be the cheapest airline from Calgary to St. Louis.Alternate airlines to your destination round-trip include Delta and Air Canada. United Airlines is currently priced 34% below the average price you’ll pay for this route.

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

    $167 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 American Airlines, with prices starting from $204 and $292, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Calgary 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 Calgary to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Calgary to St. Louis (average of $308). Flying from Calgary to St. Louis in March is currently the most expensive (average of $357). 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

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Alternative routes for Calgary to St. Louis

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Top airline flying from Calgary to St. Louis

Discover the top airline that operate flights from Calgary to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$313Average$521FlexibilityNo cancel feeOn-time67%
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