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Cheap flights from Calgary to St. Louis from C$ 294

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 26/7. 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
25 May — 1 Jun1
1 adult
Sat 25/5
Sat 1/6

The best prices from Calgary to Lambert-St Louis are usually found in March or May, booked 44 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 20 May 2024.

Popular in

January

Cheapest in

March

Round-trip from

C$ 497

One-way from

C$ 294
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 31% 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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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 45 days early can save you up to 79% on average compared to booking a flight this week. If booking 45 days before your flight isn’t an option for you, users have found flights from Calgary to St. Louis for as little as C$ 588 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$ 904 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 March. Prices to St. Louis from Calgary average C$ 647. You can even find prices in March for less than C$ 647, as users have found deals to St. Louis from as low as C$ 309. The month of January 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 24%.

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 WestJet flights from Calgary to St. Louis

Explore cheap flight options specifically provided by WestJet 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 406,380 searches. Data last updated 20 May 2024.
Take a peek at the cheapest WestJet flights we've detected travelling from Calgary to St. Louis. Make sure to check back often as deals are often changing.
Wed 28/88:00 p.m.YYC - STL
2 stops13h 47mWestJet
Sun 1/96:45 a.m.STL - YYC
1 stop12h 40mWestJet
Deal found 18/5C$ 485
Wed 28/89:45 a.m.YYC - STL
1 stop10h 32mWestJet
Sun 1/96:45 a.m.STL - YYC
1 stop12h 40mWestJet
Deal found 18/5C$ 494
Tue 11/68:00 p.m.YYC - STL
2 stops19h 20mWestJet
Wed 19/66:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 19/5C$ 497
Tue 27/812:20 a.m.YYC - STL
2 stops11h 38mWestJet
Sun 1/96:45 a.m.STL - YYC
1 stop12h 40mWestJet
Deal found 18/5C$ 508
Tue 27/812:30 a.m.YYC - STL
1 stop11h 28mWestJet
Sun 1/96:45 a.m.STL - YYC
1 stop12h 40mWestJet
Deal found 18/5C$ 529
Mon 10/612:30 a.m.YYC - STL
1 stop22h 13mWestJet
Wed 19/67:15 a.m.STL - YYC
2 stops13h 02mWestJet
Deal found 19/5C$ 536
Wed 19/69:25 p.m.YYC - STL
2 stops10h 50mWestJet
Thu 4/73:52 p.m.STL - YYC
2 stops9h 48mWestJet
Deal found 19/5C$ 542
Wed 19/68:00 p.m.YYC - STL
2 stops12h 15mWestJet
Thu 4/74:02 p.m.STL - YYC
1 stop28h 57mWestJet
Deal found 19/5C$ 547
Wed 19/62:45 p.m.YYC - STL
1 stop18h 50mWestJet
Thu 4/74:02 p.m.STL - YYC
1 stop28h 57mWestJet
Deal found 19/5C$ 610

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 406,380 searches. Data last updated 20 May 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.
Mon 9/912:30 a.m.YYC - STL
1 stop11h 24mDelta
Wed 11/92:20 p.m.STL - YYC
1 stop10h 01mDelta
Deal found 19/5C$ 501
Mon 9/912:30 a.m.YYC - STL
1 stop9h 13mDelta
Wed 11/911:51 a.m.STL - YYC
2 stops9h 19mDelta
Deal found 18/5C$ 791

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

Find cheap flight options from Calgary to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 406,380 searches. Prices were last updated on 20 May 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.
Tue 11/611:00 a.m.YYC - STL
1 stop21h 29mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 369
Tue 11/612:05 p.m.YYC - STL
2 stops24h 00mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 483
Tue 11/68:00 p.m.YYC - STL
2 stops19h 20mWestJet
Wed 19/66:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 19/5C$ 497
Tue 11/610:20 a.m.YYC - STL
3 stops25h 45mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 502
Mon 10/612:30 a.m.YYC - STL
1 stop14h 50mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 504
Mon 10/612:20 a.m.YYC - STL
2 stops10h 41mWestJet
Wed 19/67:15 a.m.STL - YYC
2 stops13h 02mWestJet
Deal found 19/5C$ 525
Tue 4/67:30 p.m.YYC - STL
1 stop16h 35mMultiple Airlines
Fri 28/68:35 p.m.STL - YYC
2 stops25h 05mMultiple Airlines
Deal found 19/5C$ 535
Mon 10/612:30 a.m.YYC - STL
1 stop22h 13mWestJet
Wed 19/67:15 a.m.STL - YYC
2 stops13h 02mWestJet
Deal found 19/5C$ 536
Wed 19/69:25 p.m.YYC - STL
2 stops10h 50mWestJet
Thu 4/73:52 p.m.STL - YYC
2 stops9h 48mWestJet
Deal found 19/5C$ 542

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 406,380 searches. Data last updated 20 May 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.
Tue 11/611:00 a.m.YYC - STL
1 stop21h 29mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 369
Tue 11/612:05 p.m.YYC - STL
2 stops24h 00mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 483
Wed 28/88:00 p.m.YYC - STL
2 stops13h 47mWestJet
Sun 1/96:45 a.m.STL - YYC
1 stop12h 40mWestJet
Deal found 18/5C$ 485
Wed 28/89:45 a.m.YYC - STL
1 stop10h 32mWestJet
Sun 1/96:45 a.m.STL - YYC
1 stop12h 40mWestJet
Deal found 18/5C$ 494
Tue 11/68:00 p.m.YYC - STL
2 stops19h 20mWestJet
Wed 19/66:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 19/5C$ 497
Mon 9/912:30 a.m.YYC - STL
1 stop11h 24mDelta
Wed 11/92:20 p.m.STL - YYC
1 stop10h 01mDelta
Deal found 19/5C$ 501
Tue 11/610:20 a.m.YYC - STL
3 stops25h 45mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 502
Mon 10/612:30 a.m.YYC - STL
1 stop14h 50mMultiple Airlines
Wed 19/61:55 p.m.STL - YYC
1 stop9h 07mMultiple Airlines
Deal found 19/5C$ 504
Tue 27/812:20 a.m.YYC - STL
2 stops11h 38mWestJet
Sun 1/96:45 a.m.STL - YYC
1 stop12h 40mWestJet
Deal found 18/5C$ 508

One-way flights to St. Louis from Calgary

Search for one-way flight options from Calgary to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 406,380 searches. Data last updated 20 May 2024.
Take a look at some of the best available options we've come across on one-way flights from Calgary to St. Louis. Those needing a return flight from Calgary to St. Louis can use the search form above.
Fri 26/79:30 a.m.YYC - STL
2 stops34h 20mMultiple Airlines
Deal found 19/5C$ 294
Thu 25/712:20 a.m.YYC - STL
2 stops15h 00mWestJet
Deal found 19/5C$ 302
Fri 26/73:00 p.m.YYC - STL
3 stops28h 50mMultiple Airlines
Deal found 19/5C$ 317
Thu 25/712:30 a.m.YYC - STL
1 stop16h 26mWestJet
Deal found 19/5C$ 357
Fri 26/72:50 p.m.YYC - STL
1 stop6h 17mWestJet
Deal found 19/5C$ 358

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 406,380 searches. Data last updated 20 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 369 - C$ 525

Route

Depart

Return

Price

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Tue 11/6

1 stop21h 29m

Lambert-St Louis

Wed 19/6

1 stop9h 07m

C$ 369

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Tue 11/6

2 stops24h 00m

Lambert-St Louis

Wed 19/6

1 stop9h 07m

C$ 483

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Wed 28/8

2 stops13h 47m

Lambert-St Louis

Sun 1/9

1 stop12h 40m

C$ 485

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Wed 28/8

1 stop10h 32m

Lambert-St Louis

Sun 1/9

1 stop12h 40m

C$ 494

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Tue 11/6

2 stops19h 20m

Lambert-St Louis

Wed 19/6

2 stops14h 17m

C$ 497

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Mon 9/9

1 stop11h 24m

Lambert-St Louis

Wed 11/9

1 stop10h 01m

C$ 501

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Tue 11/6

3 stops25h 45m

Lambert-St Louis

Wed 19/6

1 stop9h 07m

C$ 502

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Mon 10/6

1 stop14h 50m

Lambert-St Louis

Wed 19/6

1 stop9h 07m

C$ 504

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Tue 10/9

1 stop8h 20m

Lambert-St Louis

Wed 11/9

1 stop13h 34m

C$ 525

Flights are sorted by cheapest first

Deals found on 19/5

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 10 May 2024.
The best time to book flights from Calgary to St. Louis is 44 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.
Search Deals

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 12 May 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.
Search Deals

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$ 326 while a round-trip flight costs C$ 484. Price data was last updated on 19 May 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$ 560). 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$ 497

February

C$ 546

March

C$ 608

April

C$ 547

May

C$ 574

June

C$ 664

July

C$ 762

August

C$ 638

September

C$ 617

October

C$ 652

November

C$ 548

December

C$ 517

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 20 May 2024.
Read reviews from past customers who have flown WestJet, Delta and Air Canada 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
8.0
Very good
10,615 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,615 reviews
Delta
8.0
Very good
10,615 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

WestJet
7.5
Good
2,895 reviews
Delta
8.0
Very good
10,615 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Air Canada
7.0
Good
6,943 reviews
Delta
8.0
Very good
10,615 reviews
Check prices

Entertainment

8.0

Food

7.4

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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$ 400 on Cheapflights?

    Yes, there are multiple flights from Calgary to St. Louis for under C$ 400. The cheapest flight booked recently is on Multiple Airlines for just C$ 369, but on average you can expect to pay C$ 527.

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

    Flying on WestJet is currently your cheapest option to St. Louis, with prices starting at C$ 485. Additional round-trip tickets that might be worth considering are offered by Delta and Air Canada, with the lowest prices starting at C$ 501 and C$ 525, respectively. WestJet is priced at 25% 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 on your Calgary to St. Louis flight 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 Calgary to St. Louis 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 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.

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

    Many airlines flying from Calgary to St. Louis 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 19/5.

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 406,380 searches. Data last updated 20 May 2024.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 363AverageC$ 589FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 398AverageC$ 549FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 444AverageC$ 544FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapestC$ 543AverageC$ 815FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Endeavor AirlinesCheapestC$ 838AverageC$ 919FlexibilityNo 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

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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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