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Cheap flights from St. Louis (STL) to Calgary (YYC) from $108

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 8/27. 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.
STL — YYC
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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The best prices from Lambert-St Louis to Calgary are usually found in March or February, booked 90 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap flight deals from St. Louis to Calgary

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Calgary (YYC). 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 May 30, 2024.

Popular in

July

Cheapest in

March

Round-trip from

$309

One-way from

$254
High demand for flights, 12% potential price rise
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Best time to find cheap flights, 17% potential price drop
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From Lambert-St Louis to Calgary
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One-way flight from Lambert-St Louis to Calgary
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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 36 days in advance, which can save you up to 134% on flights from St. Louis to Calgary compared to booking the week you need them. Waiting 36 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 $596. For sooner than that we have options available in the next 3 days from $849.

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, March can be a great choice for travel to Calgary. Flights to Calgary from St. Louis in March are about $589 on average during March, but can be found for as low as $180.

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 in the afternoon, which can drop the price by up to 10% versus a flight in the morning.

Cheap United Airlines flights from St. Louis to Calgary

Explore cheap flight options specifically provided by United Airlines for the route between St. Louis and Calgary. 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 2,784,634 searches. Data last updated May 30, 2024.
Check out some of the cheapest United Airlines flights we've come across from St. Louis to Calgary. Make sure to double check the flight details before booking.
Sat 7/135:30 pmSTL - YYC
2 stops29h 13mUnited Airlines
Fri 7/197:15 pmYYC - STL
2 stops18h 21mUnited Airlines
Deal found 5/29$506
Sat 7/131:45 pmSTL - YYC
1 stop21h 43mUnited Airlines
Thu 7/186:25 amYYC - STL
1 stop14h 46mUnited Airlines
Deal found 5/29$538
Fri 6/281:45 pmSTL - YYC
1 stop8h 58mUnited Airlines
Fri 7/56:25 amYYC - STL
1 stop14h 46mUnited Airlines
Deal found 5/29$572
Sun 7/146:20 amSTL - YYC
2 stops16h 23mUnited Airlines
Tue 7/237:15 pmYYC - STL
2 stops18h 03mUnited Airlines
Deal found 5/29$696
Thu 8/16:20 amSTL - YYC
2 stops17h 16mUnited Airlines
Wed 8/77:15 pmYYC - STL
2 stops18h 03mUnited Airlines
Deal found 5/28$718

Cheap Delta flights from St. Louis to Calgary

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Calgary. 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 2,784,634 searches. Data last updated May 30, 2024.
Take a gander at the lowest prices we've found on Delta flights from St. Louis to Calgary. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 7/92:35 pmSTL - YYC
1 stop9h 29mDelta
Wed 7/178:00 amYYC - STL
2 stops13h 07mDelta
Deal found 5/29$353
Fri 8/232:35 pmSTL - YYC
1 stop9h 29mDelta
Fri 8/302:50 pmYYC - STL
1 stop7h 38mDelta
Deal found 5/29$365
Fri 8/236:00 amSTL - YYC
2 stops13h 32mDelta
Fri 8/309:30 pmYYC - STL
2 stops11h 09mDelta
Deal found 5/29$434
Thu 6/272:29 pmSTL - YYC
1 stop9h 33mDelta
Thu 7/48:00 amYYC - STL
2 stops14h 20mDelta
Deal found 5/28$440
Tue 8/63:28 pmSTL - YYC
2 stops10h 12mDelta
Mon 8/128:00 pmYYC - STL
2 stops12h 02mDelta
Deal found 5/29$470
Sun 7/142:35 pmSTL - YYC
1 stop9h 29mDelta
Wed 7/178:00 amYYC - STL
1 stop8h 35mDelta
Deal found 5/29$476
Sun 7/142:35 pmSTL - YYC
1 stop9h 29mDelta
Tue 7/236:45 amYYC - STL
2 stops12h 51mDelta
Deal found 5/29$486
Mon 8/56:06 amSTL - YYC
2 stops12h 21mDelta
Thu 8/159:30 pmYYC - STL
2 stops10h 32mDelta
Deal found 5/29$499
Mon 8/52:35 pmSTL - YYC
1 stop9h 29mDelta
Thu 8/159:30 pmYYC - STL
2 stops10h 32mDelta
Deal found 5/29$541

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

Find cheap flight options from St. Louis to Calgary specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Calgary in 2024. Check back soon for alternative fares.
Tue 6/117:29 pmSTL - YYC
1 stop20h 10mMultiple Airlines
Tue 6/183:35 pmYYC - STL
1 stop18h 07mMultiple Airlines
Deal found 5/30$257
Tue 6/113:23 pmSTL - YYC
2 stops21h 35mMultiple Airlines
Tue 6/187:30 pmYYC - STL
1 stop16h 35mMultiple Airlines
Deal found 5/30$320
Tue 6/113:23 pmSTL - YYC
2 stops21h 35mMultiple Airlines
Tue 6/187:00 amYYC - STL
3 stops29h 05mMultiple Airlines
Deal found 5/30$329
Tue 6/113:23 pmSTL - YYC
2 stops21h 35mMultiple Airlines
Tue 6/1812:05 pmYYC - STL
2 stops24h 00mMultiple Airlines
Deal found 5/30$342
Tue 6/117:29 pmSTL - YYC
1 stop20h 10mMultiple Airlines
Mon 6/1712:30 amYYC - STL
2 stops13h 20mMultiple Airlines
Deal found 5/30$346
Tue 6/113:23 pmSTL - YYC
2 stops24h 16mMultiple Airlines
Mon 6/1712:30 amYYC - STL
2 stops13h 20mMultiple Airlines
Deal found 5/30$348
Tue 6/113:23 pmSTL - YYC
3 stops26h 30mMultiple Airlines
Tue 6/187:00 amYYC - STL
3 stops29h 05mMultiple Airlines
Deal found 5/30$366
Mon 6/37:23 pmSTL - YYC
1 stop20h 16mMultiple Airlines
Tue 6/47:30 pmYYC - STL
1 stop16h 35mMultiple Airlines
Deal found 5/29$367
Tue 6/113:23 pmSTL - YYC
3 stops26h 30mMultiple Airlines
Mon 6/1712:30 amYYC - STL
2 stops12h 53mMultiple Airlines
Deal found 5/30$382

St. Louis to Calgary 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Calgary in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Calgary in 2024. Check back soon for alternative fares.
Tue 6/117:29 pmSTL - YYC
1 stop20h 10mMultiple Airlines
Tue 6/183:35 pmYYC - STL
1 stop18h 07mMultiple Airlines
Deal found 5/30$257
Tue 6/113:23 pmSTL - YYC
2 stops21h 35mMultiple Airlines
Tue 6/187:30 pmYYC - STL
1 stop16h 35mMultiple Airlines
Deal found 5/30$320
Thu 10/314:00 pmSTL - YYC
1 stop5h 43mDelta
Tue 11/56:50 amYYC - STL
1 stop6h 40mDelta
Deal found 5/29$328
Tue 6/113:23 pmSTL - YYC
2 stops21h 35mMultiple Airlines
Tue 6/187:00 amYYC - STL
3 stops29h 05mMultiple Airlines
Deal found 5/30$329
Thu 8/1512:15 pmSTL - YYC
2 stops9h 25mMultiple Airlines
Wed 8/217:30 pmYYC - STL
1 stop13h 48mMultiple Airlines
Deal found 5/29$335
Thu 10/3110:10 amSTL - YYC
2 stops11h 33mDelta
Tue 11/56:50 amYYC - STL
1 stop6h 40mDelta
Deal found 5/29$338
Tue 6/113:23 pmSTL - YYC
2 stops21h 35mMultiple Airlines
Tue 6/1812:05 pmYYC - STL
2 stops24h 00mMultiple Airlines
Deal found 5/30$342
Thu 8/152:35 pmSTL - YYC
1 stop9h 29mDelta
Wed 8/216:45 amYYC - STL
1 stop9h 01mDelta
Deal found 5/29$343
Tue 6/117:29 pmSTL - YYC
1 stop20h 10mMultiple Airlines
Mon 6/1712:30 amYYC - STL
2 stops13h 20mMultiple Airlines
Deal found 5/30$346

One-way flights to Calgary from St. Louis

Search for one-way flight options from St. Louis to Calgary. 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 2,784,634 searches. Data last updated May 30, 2024.
Users traveling one-way from St. Louis to Calgary can select one of these great deals. For those needing a return trip from St. Louis, there is a search form available above.
Tue 8/278:00 amSTL - YYC
1 stop15h 02mMultiple Airlines
Deal found 5/29$108
Tue 8/278:00 amSTL - YYC
1 stop15h 02mMultiple Airlines
Deal found 5/29$113
Tue 8/278:00 amSTL - YYC
2 stops28h 11mMultiple Airlines
Deal found 5/29$122
Tue 8/2710:34 amSTL - YYC
2 stops26h 22mMultiple Airlines
Deal found 5/29$123
Sun 8/257:29 pmSTL - YYC
1 stop27h 33mMultiple Airlines
Deal found 5/29$138
Tue 8/2710:34 amSTL - YYC
3 stops36h 25mMultiple Airlines
Deal found 5/29$144
Tue 7/166:06 amSTL - YYC
1 stop8h 34mDelta
Deal found 5/30$145
Tue 8/2710:34 amSTL - YYC
3 stops31h 24mMultiple Airlines
Deal found 5/29$148
Tue 6/42:12 pmSTL - YYC
1 stop22h 46mMultiple Airlines
Deal found 5/29$158

Find flights from St. Louis to Calgary within your budget

Customize your flight search to find flights from St. Louis to Calgary 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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$257 - $617

Route

Depart

Return

Price

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 6/11

1 stop17h 29m

Calgary

Tue 6/18

1 stop18h 07m

$257

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 6/11

2 stops21h 35m

Calgary

Tue 6/18

3 stops29h 05m

$329

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 7/9

1 stop9h 29m

Calgary

Wed 7/17

2 stops13h 07m

$353

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Fri 8/23

1 stop9h 29m

Calgary

Fri 8/30

1 stop7h 38m

$365

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 8/6

1 stop14h 59m

Calgary

Mon 8/12

1 stop15h 43m

$410

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 7/20

1 stop6h 12m

Calgary

Wed 8/7

1 stop7h 41m

$494

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 7/13

2 stops29h 13m

Calgary

Fri 7/19

2 stops18h 21m

$506

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 6/13

1 stop14h 49m

Calgary

Sat 6/15

1 stop15h 12m

$613

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 6/20

1 stop29h 20m

Calgary

Sun 6/23

1 stop24h 40m

$617

Flights are sorted by cheapest first

Deals found on 5/30

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 May 24, 2024.
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 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Calgary. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Calgary flight should consider departing on Monday at noon when fares are most often at their lowest. Thursday mornings 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 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.

Temperature and rainfall in Calgary by month

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

YYC

Temperature

19.4 - 62.6 °F

Reviews of airlines servicing Calgary

Get insights into the airlines that provide service to Calgary. 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 Calgary. Reviews last updated May 30, 2024.
Peruse reviews from past customers who have flown with United Airlines, Delta and Air Canada 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
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,192 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,457 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

WestJet
7.5
Good
2,869 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,777 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,284 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

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.

  • Can I find flights from St. Louis to Calgary for under $300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Calgary for under $300. The cheapest flight booked recently is on Multiple Airlines for just $257, but on average you can expect to pay $366.

  • 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 $353. Another airline that can offer you cheap pricing is WestJet. Users have found that Delta is 40% cheaper than the other options available to this destination.

  • What does STL to YYC mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Calgary Airport flight would often be abbreviated as a STL to YYC flight.

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

    The amount of baggage you can bring on your St. Louis to Calgary 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 St. Louis to Calgary with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Calgary 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 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.

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

    Many airlines flying from St. Louis to Calgary 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 St. Louis to Calgary?

    Yes, you can often find last-minute deals on St. Louis to Calgary 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 St. Louis to Calgary flight deals updated?

    The St. Louis to Calgary flight deals you see on this page were last updated on 5/30.

  • 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 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 $309). Flying from St. Louis to Calgary in March is currently the most expensive (average of $437). 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 St. Louis to Calgary
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from St. Louis to Calgary

Discover the top 5 airlines that operate flights from St. Louis to Calgary. 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$189Average$581FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$307Average$647FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$388Average$573FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$389Average$662FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapest$484Average$601FlexibilityNo cancel feeOn-time60%
Search WestJet flights
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Search flights from St. Louis to Calgary by cabin class

Find flights from St. Louis to Calgary, 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 St. Louis to Calgary?

Cheapflights helps you search for flights from St. Louis to Calgary via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to Calgary for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from St. Louis to Calgary with no change fees.

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

Not ready to book yet? You can track prices for flights from St. Louis to Calgary on Cheapflights with our Price Alert feature and get notified when better prices are available.

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