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Cheap flights from Calgary to St. Louis from C$ 531

This is the cheapest round-trip 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. Click the price to replicate the search for this deal.
YYC — STL
21 Apr — 28 Apr1
1 adult
Sun 21/4
Sun 28/4

The best prices from Calgary to Lambert-St Louis are usually found in September or November, booked 85 days in advance, depart on a Thursday or Saturday and return on a Monday

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 16 April 2024.

Popular in

July

Cheapest in

September

Average price

C$ 669

Round-trip from

C$ 503
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 20% potential price drop
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Average for round-trip flights in April 2024
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From Calgary to Lambert-St Louis
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What is the cheapest day to fly round-trip from Calgary to St. Louis?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Users have found that booking a flight from Calgary to St. Louis at least 20 days early can save you up to 54% on average compared to booking a flight this week. If booking 20 days before your flight isn’t an option for you, users have found flights from Calgary to St. Louis for as little as C$ 669 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 881 for flights departing within the next 3 days.

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

The best pricing can be found in the month of September. Prices to St. Louis from Calgary average C$ 686. You can even find prices in September for less than C$ 686, as users have found deals to St. Louis from as low as C$ 538. The month of July appears to be one of the more expensive times to travel to St. Louis from Calgary. Flying in the targeted month can save you up to 23%.

When is the cheapest time to fly from Calgary to St. Louis (YYC - STL)?

It’s typically best to fly out from Calgary to St. Louis in the afternoon. Doing so could potentially save you 36% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Air Canada flights from Calgary to St. Louis

Explore cheap flight options specifically provided by Air Canada for the route between Calgary and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 509,952 searches. Data last updated 16 April 2024.
Take a peek at the cheapest Air Canada flights we've detected travelling from Calgary to St. Louis. Make sure to check back often as deals are often changing.
Sat 4/56:25 a.m.YYC - STL
1 stop13h 44mAir Canada
Tue 7/54:05 p.m.STL - YYC
1 stop8h 57mAir Canada
Deal found 14/4C$ 531
Sat 4/56:25 a.m.YYC - STL
1 stop5h 16mAir Canada
Tue 7/510:10 a.m.STL - YYC
1 stop14h 52mAir Canada
Deal found 15/4C$ 566
Fri 3/51:00 a.m.YYC - STL
1 stop13h 21mAir Canada
Tue 7/54:05 p.m.STL - YYC
1 stop8h 57mAir Canada
Deal found 14/4C$ 575
Fri 3/51:00 a.m.YYC - STL
1 stop13h 21mAir Canada
Tue 7/510:10 a.m.STL - YYC
1 stop14h 52mAir Canada
Deal found 15/4C$ 610
Mon 29/41:00 a.m.YYC - STL
1 stop14h 01mAir Canada
Sun 12/58:47 a.m.STL - YYC
1 stop13h 56mAir Canada
Deal found 16/4C$ 822

Cheap Delta flights from Calgary to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Calgary and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 509,952 searches. Data last updated 16 April 2024.
Take a gander at the lowest prices we've found on Delta flights from Calgary to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Sun 28/47:55 a.m.YYC - STL
2 stops14h 51mDelta
Sun 9/66:00 a.m.STL - YYC
2 stops14h 15mDelta
Deal found 15/4C$ 615
Sat 4/57:55 a.m.YYC - STL
2 stops13h 05mDelta
Tue 7/56:11 a.m.STL - YYC
2 stops12h 19mDelta
Deal found 15/4C$ 637

Cheap Calgary to St. Louis flights in April & May 2024

Find cheap flight options from Calgary to St. Louis specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 509,952 searches. Prices were last updated on 16 April 2024.
These are some of the most attractive deals on flights from Calgary to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Sat 4/56:25 a.m.YYC - STL
1 stop13h 44mAir Canada
Tue 7/54:05 p.m.STL - YYC
1 stop8h 57mAir Canada
Deal found 14/4C$ 531
Sat 4/56:25 a.m.YYC - STL
1 stop5h 16mAir Canada
Tue 7/510:10 a.m.STL - YYC
1 stop14h 52mAir Canada
Deal found 15/4C$ 566
Fri 3/51:00 a.m.YYC - STL
1 stop13h 21mAir Canada
Tue 7/54:05 p.m.STL - YYC
1 stop8h 57mAir Canada
Deal found 14/4C$ 575
Tue 30/47:55 a.m.YYC - STL
1 stop5h 20mWestJet
Sun 12/56:11 a.m.STL - YYC
2 stops26h 16mWestJet
Deal found 16/4C$ 592
Fri 10/57:55 a.m.YYC - STL
1 stop26h 15mWestJet
Sun 12/56:11 a.m.STL - YYC
2 stops26h 16mWestJet
Deal found 15/4C$ 594
Tue 30/47:00 a.m.YYC - STL
2 stops13h 17mWestJet
Sun 12/56:11 a.m.STL - YYC
2 stops26h 16mWestJet
Deal found 16/4C$ 599
Fri 3/51:00 a.m.YYC - STL
1 stop13h 21mAir Canada
Tue 7/510:10 a.m.STL - YYC
1 stop14h 52mAir Canada
Deal found 15/4C$ 610
Sun 28/47:55 a.m.YYC - STL
2 stops14h 51mDelta
Sun 9/66:00 a.m.STL - YYC
2 stops14h 15mDelta
Deal found 15/4C$ 615
Tue 30/412:30 p.m.YYC - STL
1 stop9h 30mAmerican Airlines
Sun 12/55:21 a.m.STL - YYC
1 stop17h 29mAmerican Airlines
Deal found 16/4C$ 622

Calgary to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Calgary and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 509,952 searches. Data last updated 16 April 2024.
These are some of the most attractive deals on flights from Calgary to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Sat 4/56:25 a.m.YYC - STL
1 stop13h 44mAir Canada
Tue 7/54:05 p.m.STL - YYC
1 stop8h 57mAir Canada
Deal found 14/4C$ 531
Tue 16/79:30 p.m.YYC - STL
2 stops10h 36mDelta
Mon 22/72:30 p.m.STL - YYC
1 stop9h 33mDelta
Deal found 15/4C$ 545
Sat 4/56:25 a.m.YYC - STL
1 stop5h 16mAir Canada
Tue 7/510:10 a.m.STL - YYC
1 stop14h 52mAir Canada
Deal found 15/4C$ 566
Fri 3/51:00 a.m.YYC - STL
1 stop13h 21mAir Canada
Tue 7/54:05 p.m.STL - YYC
1 stop8h 57mAir Canada
Deal found 14/4C$ 575
Tue 30/47:55 a.m.YYC - STL
1 stop5h 20mWestJet
Sun 12/56:11 a.m.STL - YYC
2 stops26h 16mWestJet
Deal found 16/4C$ 592
Fri 10/57:55 a.m.YYC - STL
1 stop26h 15mWestJet
Sun 12/56:11 a.m.STL - YYC
2 stops26h 16mWestJet
Deal found 15/4C$ 594
Tue 30/47:00 a.m.YYC - STL
2 stops13h 17mWestJet
Sun 12/56:11 a.m.STL - YYC
2 stops26h 16mWestJet
Deal found 16/4C$ 599
Fri 3/51:00 a.m.YYC - STL
1 stop13h 21mAir Canada
Tue 7/510:10 a.m.STL - YYC
1 stop14h 52mAir Canada
Deal found 15/4C$ 610
Sun 28/46:25 a.m.YYC - STL
1 stop6h 06mDelta
Sun 9/66:00 a.m.STL - YYC
2 stops14h 15mDelta
Deal found 15/4C$ 615

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 509,952 searches. Data last updated 16 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 531 - C$ 717

Route

Depart

Return

Price

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Sat 4/5

1 stop13h 44m

Lambert-St Louis

Tue 7/5

1 stop8h 57m

C$ 531

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Sat 4/5

1 stop5h 16m

Lambert-St Louis

Tue 7/5

1 stop14h 52m

C$ 566

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 3/5

1 stop13h 21m

Lambert-St Louis

Tue 7/5

1 stop8h 57m

C$ 575

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Tue 30/4

1 stop5h 20m

Lambert-St Louis

Sun 12/5

2 stops26h 16m

C$ 592

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 10/5

1 stop26h 15m

Lambert-St Louis

Sun 12/5

2 stops26h 16m

C$ 594

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Sun 28/4

2 stops14h 51m

Lambert-St Louis

Sun 9/6

2 stops14h 15m

C$ 615

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Tue 30/4

1 stop9h 30m

Lambert-St Louis

Sun 12/5

1 stop17h 29m

C$ 622

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Sat 4/5

2 stops13h 05m

Lambert-St Louis

Tue 7/5

2 stops12h 19m

C$ 637

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Sun 28/4

1 stop12h 57m

Lambert-St Louis

Sun 9/6

1 stop18h 51m

C$ 717

Flights are sorted by cheapest first

Deals found on 14/4

When is the best time to 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 28 January 2024.
The best time to book flights from Calgary to St. Louis is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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When is the cheapest time to fly from Calgary to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Calgary to St. Louis. Price data was last updated on 14 April 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Calgary to St. Louis flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to St. Louis by month

Plan your trip from Calgary to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Calgary to St. Louis is currently C$ 0 while a round-trip flight costs C$ 605. Price data was last updated on 7 April 2024.

Currently, January is the cheapest month in which you can book a flight from Calgary to St. Louis (average of C$ 365). Flying from Calgary to St. Louis in July is currently the most expensive (average of C$ 528). 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.

January

C$ 502

February

C$ 552

March

C$ 615

April

C$ 578

May

C$ 555

June

C$ 643

July

C$ 727

August

C$ 615

September

C$ 623

October

C$ 659

November

C$ 555

December

C$ 523

Temperature and rainfall in St. Louis by month

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

STL

Temperature

0 - 27 °C

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 16 April 2024.
Read reviews from past customers who have flown Air Canada, Delta and WestJet from Calgary to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
11,123 reviews
Check prices

Crew

8.6

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

Delta
8.1
Very good
11,123 reviews
Delta
8.1
Very good
11,123 reviews
Check prices

Crew

8.6

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

WestJet
7.5
Good
3,007 reviews
Delta
8.1
Very good
11,123 reviews
Check prices

Crew

8.6

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

American Airlines
7.3
Good
14,952 reviews
Delta
8.1
Very good
11,123 reviews
Check prices

Crew

8.6

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

Air Canada
7.0
Good
6,818 reviews
Delta
8.1
Very good
11,123 reviews
Check prices

Crew

8.6

Food

7.5

Boarding

8.2

Comfort

7.9

Overall

8.1

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

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.

  • Can I find flights from Calgary to St. Louis for under C$ 600 on Cheapflights?

    Yes, there are multiple flights from Calgary to St. Louis for under C$ 600. The cheapest flight booked recently is on Air Canada for just C$ 531, but on average you can expect to pay C$ 677.

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

    Flying on Air Canada is currently your cheapest option to St. Louis, with prices starting at C$ 531. Additional round-trip tickets that might be worth considering are offered by WestJet and Delta, with the lowest prices starting at C$ 592 and C$ 615, respectively. Air Canada is priced at 22% lower than the current average price of a flight leaving 3 months from now.

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

    The most popular airlines flying from Calgary to St. Louis are Endeavor Airlines, Air Canada and British Airways. Something to consider prior to booking your flight.

  • What does YYC to STL mean?

    YYC stands for Calgary Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Calgary to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Calgary to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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 see available direct flights.

  • 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.

  • Can I find deals for flights from Calgary to St. Louis that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Calgary to St. Louis?

    Yes, you can often find last-minute deals on Calgary to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Calgary to St. Louis flight deals updated?

    The Calgary to St. Louis flight deals you see on this page were last updated on 16/4.

See more FAQs

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Alternative routes for Calgary to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Calgary to St. Louis

Discover the top 5 airlines 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 509,952 searches. Data last updated 16 April 2024.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 367AverageC$ 596FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 402AverageC$ 556FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 449AverageC$ 550FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapestC$ 549AverageC$ 824FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Endeavor AirlinesCheapestC$ 847AverageC$ 929FlexibilityNo cancel feeOn-timeN/A
Search Endeavor Airlines flights
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Search flights from Calgary to St. Louis by cabin class

Find flights from Calgary to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 Calgary to St. Louis?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Calgary to St. Louis. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Calgary to St. Louis for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to St. Louis from Calgary? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Calgary to St. Louis and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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