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Cheap flights from Calgary to St. Louis from C$ 254

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 28/6. 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
4 Jun — 11 Jun1
1 adult
Tue 4/6
Tue 11/6

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 30 May 2024.

Popular in

January

Cheapest in

March

Round-trip from

C$ 500

One-way from

C$ 322
High demand for flights, 20% potential price rise
Search Deals
Best time to find cheap flights, 30% potential price drop
Search Deals
From Calgary to Lambert-St Louis
Search Deals
One-way flight from Calgary to Lambert-St Louis
Search Deals

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$ 591 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$ 909 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$ 645. You can even find prices in March for less than C$ 645, as users have found deals to St. Louis from as low as C$ 311. 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 25%.

What is the cheapest time of day to fly from YYC to 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 United Airlines flights from Calgary to St. Louis

Explore cheap flight options specifically provided by United Airlines 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 426,053 searches. Data last updated 30 May 2024.
Take a peek at the cheapest United Airlines flights we've detected travelling from Calgary to St. Louis. Make sure to check back often as deals are often changing.
Fri 28/66:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Mon 1/74:36 p.m.STL - YYC
1 stop6h 07mUnited Airlines
Deal found 29/5C$ 536
Fri 28/66:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Mon 1/71:45 p.m.STL - YYC
1 stop8h 58mUnited Airlines
Deal found 30/5C$ 543

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 426,053 searches. Data last updated 30 May 2024.
Take a gander at the lowest prices we've found on WestJet flights from Calgary to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Thu 27/612:20 a.m.YYC - STL
2 stops16h 41mWestJet
Mon 1/76:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 30/5C$ 568
Thu 27/612:20 a.m.YYC - STL
2 stops16h 41mWestJet
Mon 1/76:06 a.m.STL - YYC
1 stop15h 22mWestJet
Deal found 30/5C$ 597
Fri 28/67:00 a.m.YYC - STL
2 stops13h 55mWestJet
Mon 1/76:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 30/5C$ 599
Fri 28/67:00 a.m.YYC - STL
2 stops9h 01mWestJet
Mon 1/76:06 a.m.STL - YYC
1 stop15h 22mWestJet
Deal found 30/5C$ 629
Fri 28/67:00 a.m.YYC - STL
2 stops9h 01mWestJet
Mon 1/710:05 a.m.STL - YYC
1 stop11h 23mWestJet
Deal found 30/5C$ 643
Thu 27/612:30 a.m.YYC - STL
1 stop7h 40mWestJet
Mon 1/710:05 a.m.STL - YYC
1 stop11h 23mWestJet
Deal found 30/5C$ 954

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 426,053 searches. Prices were last updated on 30 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.
Fri 28/66:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Mon 1/74:36 p.m.STL - YYC
1 stop6h 07mUnited Airlines
Deal found 29/5C$ 536
Fri 28/66:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Mon 1/71:45 p.m.STL - YYC
1 stop8h 58mUnited Airlines
Deal found 30/5C$ 543
Thu 27/612:20 a.m.YYC - STL
2 stops16h 41mWestJet
Mon 1/76:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 30/5C$ 568
Thu 27/612:20 a.m.YYC - STL
2 stops16h 41mWestJet
Mon 1/76:06 a.m.STL - YYC
1 stop15h 22mWestJet
Deal found 30/5C$ 597
Fri 28/67:00 a.m.YYC - STL
2 stops13h 55mWestJet
Mon 1/76:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 30/5C$ 599
Fri 28/67:00 a.m.YYC - STL
2 stops9h 01mWestJet
Mon 1/76:06 a.m.STL - YYC
1 stop15h 22mWestJet
Deal found 30/5C$ 629
Fri 28/67:00 a.m.YYC - STL
2 stops9h 01mWestJet
Mon 1/710:05 a.m.STL - YYC
1 stop11h 23mWestJet
Deal found 30/5C$ 643
Fri 28/66:25 a.m.YYC - STL
1 stop14h 46mAir Canada
Mon 1/71:45 p.m.STL - YYC
1 stop8h 58mAir Canada
Deal found 30/5C$ 646
Fri 28/66:30 p.m.YYC - STL
3 stops19h 20mMultiple Airlines
Mon 1/712:15 p.m.STL - YYC
3 stops23h 56mMultiple Airlines
Deal found 30/5C$ 649

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 426,053 searches. Data last updated 30 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.
Mon 26/81:30 p.m.YYC - STL
1 stop6h 58mAir Canada
Sat 31/84:05 p.m.STL - YYC
1 stop7h 40mAir Canada
Deal found 30/5C$ 446
Sun 25/812:30 a.m.YYC - STL
1 stop14h 50mWestJet
Sat 31/85:27 p.m.STL - YYC
1 stop25h 58mWestJet
Deal found 30/5C$ 495
Mon 26/89:30 p.m.YYC - STL
2 stops14h 54mWestJet
Sat 31/85:26 p.m.STL - YYC
1 stop19h 06mWestJet
Deal found 30/5C$ 501
Sun 25/812:30 a.m.YYC - STL
1 stop11h 54mWestJet
Sat 31/86:06 a.m.STL - YYC
2 stops13h 07mWestJet
Deal found 30/5C$ 535
Fri 28/66:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Mon 1/74:36 p.m.STL - YYC
1 stop6h 07mUnited Airlines
Deal found 29/5C$ 536
Fri 28/66:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Mon 1/71:45 p.m.STL - YYC
1 stop8h 58mUnited Airlines
Deal found 30/5C$ 543
Mon 3/67:30 p.m.YYC - STL
1 stop13h 43mMultiple Airlines
Thu 6/63:32 p.m.STL - YYC
2 stops22h 48mMultiple Airlines
Deal found 30/5C$ 547
Thu 27/612:20 a.m.YYC - STL
2 stops16h 41mWestJet
Mon 1/76:00 a.m.STL - YYC
2 stops14h 17mWestJet
Deal found 30/5C$ 568
Sun 25/812:20 a.m.YYC - STL
2 stops12h 04mWestJet
Sat 31/810:04 a.m.STL - YYC
2 stops9h 09mWestJet
Deal found 30/5C$ 577

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 426,053 searches. Data last updated 30 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 28/66:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Deal found 29/5C$ 254
Fri 26/712:35 p.m.YYC - STL
2 stops31h 15mMultiple Airlines
Deal found 29/5C$ 260
Wed 28/81:00 a.m.YYC - STL
1 stop13h 21mAir Canada
Deal found 30/5C$ 282
Fri 26/73:00 p.m.YYC - STL
3 stops28h 50mMultiple Airlines
Deal found 29/5C$ 309
Fri 26/79:45 a.m.YYC - STL
1 stop6h 36mWestJet
Deal found 29/5C$ 315
Sat 10/89:30 p.m.YYC - STL
2 stops10h 32mDelta
Deal found 30/5C$ 322
Wed 28/812:30 a.m.YYC - STL
2 stops11h 20mMultiple Airlines
Deal found 30/5C$ 334
Thu 25/712:20 a.m.YYC - STL
2 stops15h 00mWestJet
Deal found 29/5C$ 341
Fri 9/812:30 a.m.YYC - STL
1 stop14h 50mWestJet
Deal found 30/5C$ 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 426,053 searches. Data last updated 30 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 536 - C$ 669

Route

Depart

Return

Price

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 28/6

1 stop14h 46m

Lambert-St Louis

Mon 1/7

1 stop6h 07m

C$ 536

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 28/6

1 stop14h 46m

Lambert-St Louis

Mon 1/7

1 stop8h 58m

C$ 543

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Thu 27/6

2 stops16h 41m

Lambert-St Louis

Mon 1/7

2 stops14h 17m

C$ 568

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Thu 27/6

2 stops16h 41m

Lambert-St Louis

Mon 1/7

1 stop15h 22m

C$ 597

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 28/6

2 stops13h 55m

Lambert-St Louis

Mon 1/7

2 stops14h 17m

C$ 599

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 28/6

2 stops9h 01m

Lambert-St Louis

Mon 1/7

1 stop15h 22m

C$ 629

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 28/6

1 stop14h 46m

Lambert-St Louis

Mon 1/7

1 stop8h 58m

C$ 646

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 28/6

3 stops19h 20m

Lambert-St Louis

Mon 1/7

3 stops23h 56m

C$ 649

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 28/6

3 stops19h 20m

Lambert-St Louis

Mon 1/7

3 stops23h 56m

C$ 669

Flights are sorted by cheapest first

Deals found on 29/5

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 24 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

What is the cheapest day 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 26 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

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.

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 30 May 2024.
Read reviews from past customers who have flown United Airlines 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
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

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
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

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
2,866 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

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.

United Airlines
7.4
Good
10,777 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

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
7,004 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

8.0

Comfort

7.9

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$ 600 on Cheapflights?

    Yes, there are multiple flights from Calgary to St. Louis for under C$ 600. The cheapest flight booked recently is on United Airlines for just C$ 536, but on average you can expect to pay C$ 650.

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

    Flying on United Airlines is currently your cheapest option to St. Louis, with prices starting at C$ 536. Additional round-trip tickets that might be worth considering are offered by WestJet and Air Canada, with the lowest prices starting at C$ 568 and C$ 646, respectively. United Airlines is priced at 16% lower than the current average price of a flight leaving 3 months from now.

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

    C$ 254 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and WestJet, with prices starting from C$ 282 and C$ 315, respectively.

  • 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 30/5.

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

    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$ 558). 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
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 426,053 searches. Data last updated 30 May 2024.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 365AverageC$ 625FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 407AverageC$ 558FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 446AverageC$ 546FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapestC$ 546AverageC$ 819FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Endeavor AirlinesCheapestC$ 842AverageC$ 924FlexibilityNo 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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