Find flights
When to book
Airlines
FAQs

Cheap flights from St. Louis to Calgary from C$ 148

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 27/8. 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
4 Jun — 11 Jun1
1 adult
Tue 4/6
Tue 11/6

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 30 May 2024.

Popular in

July

Cheapest in

March

Average price

C$ 848

Round-trip from

C$ 196
High demand for flights, 12% potential price rise
Search Deals
Best time to find cheap flights, 17% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From Lambert-St Louis to Calgary
Search Deals

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 C$ 815. For sooner than that we have options available in the next 3 days from C$ 1,162.

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 C$ 806 on average during March, but can be found for as low as C$ 246.

What is the cheapest time of day to fly from STL to YYC?

It’s typically best to fly out from St. Louis to Calgary in the morning. Doing so could potentially save you 41% on the flight price compared to flying at noon, which is usually more expensive.

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 426,053 searches. Data last updated 30 May 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 13/71:45 p.m.STL - YYC
1 stop21h 43mUnited Airlines
Thu 18/76:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Deal found 29/5C$ 736
Fri 28/61:45 p.m.STL - YYC
1 stop8h 58mUnited Airlines
Fri 5/76:25 a.m.YYC - STL
1 stop14h 46mUnited Airlines
Deal found 29/5C$ 783
Thu 1/86:20 a.m.STL - YYC
2 stops17h 16mUnited Airlines
Wed 7/87:15 p.m.YYC - STL
2 stops18h 03mUnited Airlines
Deal found 28/5C$ 982

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 426,053 searches. Data last updated 30 May 2024.
To aid your search, here are some of the cheapest Delta flights we've found from St. Louis to Calgary. Deals frequently update to provide users with more options.
Thu 31/104:00 p.m.STL - YYC
1 stop5h 43mDelta
Tue 5/116:50 a.m.YYC - STL
1 stop6h 40mDelta
Deal found 29/5C$ 449
Thu 31/1010:10 a.m.STL - YYC
2 stops11h 33mDelta
Tue 5/116:50 a.m.YYC - STL
1 stop6h 40mDelta
Deal found 29/5C$ 462
Thu 15/82:35 p.m.STL - YYC
1 stop9h 29mDelta
Wed 21/86:45 a.m.YYC - STL
1 stop9h 01mDelta
Deal found 29/5C$ 469
Tue 9/72:35 p.m.STL - YYC
1 stop9h 29mDelta
Wed 17/78:00 a.m.YYC - STL
2 stops13h 07mDelta
Deal found 29/5C$ 483
Fri 23/82:35 p.m.STL - YYC
1 stop9h 29mDelta
Fri 30/82:50 p.m.YYC - STL
1 stop7h 38mDelta
Deal found 29/5C$ 499
Wed 23/102:20 p.m.STL - YYC
1 stop10h 01mDelta
Mon 28/109:30 p.m.YYC - STL
2 stops12h 13mDelta
Deal found 30/5C$ 538
Wed 23/107:10 a.m.STL - YYC
2 stops13h 09mDelta
Mon 28/109:30 p.m.YYC - STL
2 stops12h 13mDelta
Deal found 30/5C$ 545
Tue 15/103:30 p.m.STL - YYC
1 stop6h 13mDelta
Sat 19/106:50 a.m.YYC - STL
1 stop6h 40mDelta
Deal found 29/5C$ 579
Fri 23/86:00 a.m.STL - YYC
2 stops13h 32mDelta
Fri 30/89:30 p.m.YYC - STL
2 stops11h 09mDelta
Deal found 29/5C$ 594

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 426,053 searches. Prices were last updated on 30 May 2024.
Scroll through some of the best deals on flights from St. Louis to Calgary in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 11/67:29 p.m.STL - YYC
1 stop20h 10mMultiple Airlines
Tue 18/63:35 p.m.YYC - STL
1 stop18h 07mMultiple Airlines
Deal found 30/5C$ 352
Tue 11/63:23 p.m.STL - YYC
2 stops21h 35mMultiple Airlines
Tue 18/67:30 p.m.YYC - STL
1 stop16h 35mMultiple Airlines
Deal found 30/5C$ 438
Tue 11/63:23 p.m.STL - YYC
2 stops21h 35mMultiple Airlines
Tue 18/67:00 a.m.YYC - STL
3 stops29h 05mMultiple Airlines
Deal found 30/5C$ 450
Tue 11/63:23 p.m.STL - YYC
2 stops21h 35mMultiple Airlines
Tue 18/612:05 p.m.YYC - STL
2 stops24h 00mMultiple Airlines
Deal found 30/5C$ 468
Tue 11/67:29 p.m.STL - YYC
1 stop20h 10mMultiple Airlines
Mon 17/612:30 a.m.YYC - STL
2 stops13h 20mMultiple Airlines
Deal found 30/5C$ 473
Tue 11/63:23 p.m.STL - YYC
2 stops24h 16mMultiple Airlines
Mon 17/612:30 a.m.YYC - STL
2 stops13h 20mMultiple Airlines
Deal found 30/5C$ 476
Tue 11/63:23 p.m.STL - YYC
3 stops26h 30mMultiple Airlines
Tue 18/67:00 a.m.YYC - STL
3 stops29h 05mMultiple Airlines
Deal found 30/5C$ 501
Mon 3/67:23 p.m.STL - YYC
1 stop20h 16mMultiple Airlines
Tue 4/67:30 p.m.YYC - STL
1 stop16h 35mMultiple Airlines
Deal found 29/5C$ 502
Tue 11/63:23 p.m.STL - YYC
3 stops26h 30mMultiple Airlines
Mon 17/612:30 a.m.YYC - STL
2 stops12h 53mMultiple Airlines
Deal found 30/5C$ 523

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 426,053 searches. Data last updated 30 May 2024.
Scroll through some of the best deals on flights from St. Louis to Calgary in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 11/67:29 p.m.STL - YYC
1 stop20h 10mMultiple Airlines
Tue 18/63:35 p.m.YYC - STL
1 stop18h 07mMultiple Airlines
Deal found 30/5C$ 352
Tue 11/63:23 p.m.STL - YYC
2 stops21h 35mMultiple Airlines
Tue 18/67:30 p.m.YYC - STL
1 stop16h 35mMultiple Airlines
Deal found 30/5C$ 438
Thu 31/104:00 p.m.STL - YYC
1 stop5h 43mDelta
Tue 5/116:50 a.m.YYC - STL
1 stop6h 40mDelta
Deal found 29/5C$ 449
Tue 11/63:23 p.m.STL - YYC
2 stops21h 35mMultiple Airlines
Tue 18/67:00 a.m.YYC - STL
3 stops29h 05mMultiple Airlines
Deal found 30/5C$ 450
Thu 15/812:15 p.m.STL - YYC
2 stops9h 25mMultiple Airlines
Wed 21/87:30 p.m.YYC - STL
1 stop13h 48mMultiple Airlines
Deal found 29/5C$ 458
Thu 31/1010:10 a.m.STL - YYC
2 stops11h 33mDelta
Tue 5/116:50 a.m.YYC - STL
1 stop6h 40mDelta
Deal found 29/5C$ 462
Tue 11/63:23 p.m.STL - YYC
2 stops21h 35mMultiple Airlines
Tue 18/612:05 p.m.YYC - STL
2 stops24h 00mMultiple Airlines
Deal found 30/5C$ 468
Thu 15/82:35 p.m.STL - YYC
1 stop9h 29mDelta
Wed 21/86:45 a.m.YYC - STL
1 stop9h 01mDelta
Deal found 29/5C$ 469
Tue 11/67:29 p.m.STL - YYC
1 stop20h 10mMultiple Airlines
Mon 17/612:30 a.m.YYC - STL
2 stops13h 20mMultiple Airlines
Deal found 30/5C$ 473

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 426,053 searches. Data last updated 30 May 2024.
Some of the best available deals we've found on one-way flights from St. Louis to Calgary. Those needing a return flight from St. Louis to Calgary can use the search form above.
Tue 27/88:00 a.m.STL - YYC
1 stop15h 02mMultiple Airlines
Deal found 29/5C$ 148
Tue 27/88:00 a.m.STL - YYC
1 stop15h 02mMultiple Airlines
Deal found 29/5C$ 155
Tue 27/88:00 a.m.STL - YYC
2 stops28h 11mMultiple Airlines
Deal found 29/5C$ 167
Tue 27/810:34 a.m.STL - YYC
2 stops26h 22mMultiple Airlines
Deal found 29/5C$ 168
Sun 25/87:29 p.m.STL - YYC
1 stop27h 33mMultiple Airlines
Deal found 29/5C$ 189
Tue 27/810:34 a.m.STL - YYC
3 stops36h 25mMultiple Airlines
Deal found 29/5C$ 197
Tue 16/76:06 a.m.STL - YYC
1 stop8h 34mDelta
Deal found 30/5C$ 198
Tue 27/810:34 a.m.STL - YYC
3 stops31h 24mMultiple Airlines
Deal found 29/5C$ 203
Tue 4/62:12 p.m.STL - YYC
1 stop22h 46mMultiple Airlines
Deal found 29/5C$ 216

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 426,053 searches. Data last updated 30 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 352 - C$ 844

Route

Depart

Return

Price

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 11/6

1 stop20h 10m

Calgary

Tue 18/6

1 stop18h 07m

C$ 352

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 11/6

2 stops21h 35m

Calgary

Tue 18/6

1 stop16h 35m

C$ 438

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 31/10

1 stop5h 43m

Calgary

Tue 5/11

1 stop6h 40m

C$ 449

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 31/10

2 stops11h 33m

Calgary

Tue 5/11

1 stop6h 40m

C$ 462

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 31/8

1 stop7h 40m

Calgary

Tue 3/9

1 stop14h 03m

C$ 530

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 6/8

1 stop14h 59m

Calgary

Mon 12/8

1 stop15h 43m

C$ 561

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sat 13/7

1 stop21h 43m

Calgary

Thu 18/7

1 stop14h 46m

C$ 736

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 13/6

1 stop14h 49m

Calgary

Sat 15/6

1 stop15h 12m

C$ 839

Lambert-St LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 20/6

1 stop29h 20m

Calgary

Sun 23/6

1 stop24h 40m

C$ 844

Flights are sorted by cheapest first

Deals found on 30/5

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 24 May 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 26 May 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Calgary flight should consider departing on Wednesday at noon when fares are most often at their lowest. Wednesday at noon 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

-7 - 17 °C

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 30 May 2024.
Read reviews from past customers who have flown United Airlines, Delta and WestJet from St. Louis to Calgary. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

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

Boarding

8.2

Entertainment

7.3

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

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

Boarding

8.2

Entertainment

7.3

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

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

WestJet
7.5
Good
2,866 reviews
Alaska Airlines
8.1
Very good
9,192 reviews
Check prices

Boarding

8.2

Entertainment

7.3

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

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

Boarding

8.2

Entertainment

7.3

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

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

Boarding

8.2

Entertainment

7.3

Food

7.3

Overall

8.1

Crew

8.6

Comfort

7.9

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 C$ 400 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Calgary for under C$ 400. The cheapest flight booked recently is on Multiple Airlines for just C$ 352, but on average you can expect to pay C$ 480.

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

    Flying on Delta is currently your cheapest option to Calgary, with prices starting at C$ 449. Additional round-trip tickets that might be worth considering are offered by Air Canada and WestJet, with the lowest prices starting at C$ 530 and C$ 561, respectively. These flights start at 44% lower than the current average price 3 months from now.

  • 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 30/5.

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Calgary (average of C$ 144). Flying from St. Louis to Calgary in July is currently the most expensive (average of C$ 253). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Kansas City to Calgary flights
St. Louis to Edmonton flights

Top airline flying from St. Louis to Calgary

Discover the top airline 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 426,053 searches. Data last updated 30 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 321AverageC$ 746FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Halifax to Vancouver flights
Calgary to Lisbon flights
Toronto to Maui flights
Ottawa to Tokyo flights
Montreal to Barcelona flights
Saskatoon to Edmonton flights
Vancouver to Vancouver Island flights
Vancouver to Fort Lauderdale flights
Montreal to Japan flights
Toronto to Savannah flights
Montreal to Zurich flights
St. Louis to Charlottetown flights

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.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Zakynthos Dionsios Salomos
Flights to Saint Peter Jersey
Flights to Ibague
Flights to Monrovia Roberts Intl
Flights to Dawson City
Flights to Maracaibo La Chinita
Flights to Dalaman
Flights to Naxos
Flights to Montgomery Dannelly Field
Flights to Suceava Salcea
Flights to Nador
Flights to Fayetteville
Flights to Tampico Gen F Javier Mina
Flights to Sioux Falls Joe Foss Field
Flights to General Santos Intl
Flights to Grand Junction Regnl
Flights to Sulaymaniyah Int.
Flights to Traverse City Cherry Capital
Flights to Tofino Long Beach
Flights to Niagara Falls
Flights to Butuan
Flights to Samarkand
Flights to Churchill
Flights to Arcata Eureka

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?

When you search for this flight from St. Louis to Calgary, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Calgary from St. Louis.

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

Need flexible booking options for your flight to Calgary from St. Louis? 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 St. Louis to Calgary become cheaper?

Of course! You can now track prices for flights from St. Louis to Calgary 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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines