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Cheap flights from Calgary (YYC) to St. Louis (STL) from $164

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 10/22. 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
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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The best prices from Calgary to Lambert-St Louis are usually found in March or May, booked 44 days in advance, depart on a Saturday or Tuesday 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 May 30, 2024.

Popular in

January

Cheapest in

March

Round-trip from

$319

One-way from

$186
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 30% 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?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

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

Travelers have found it’s best to book a flight 45 days in advance to save up to 79% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Calgary to St. Louis 1-2 weeks in advance for as low as $432, or $664 for flights within the next 24 hours.

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

March can be a great time to fly to St. Louis from Calgary with a flight ticket averaging about $472. Cheapflights users have found deals in the month of March for as cheap as $227. The most expensive prices can be found in the month of January.

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

When flying from Calgary to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 12% versus a flight in the afternoon.

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 2,784,634 searches. Data last updated May 30, 2024.
Find some of the cheapest United Airlines flights traveling from Calgary to St. Louis. Come back soon if you're not finding the exact deal you're looking for.
Fri 6/286:25 amYYC - STL
1 stop14h 46mUnited Airlines
Mon 7/14:36 pmSTL - YYC
1 stop6h 07mUnited Airlines
Deal found 5/29$392
Fri 6/286:25 amYYC - STL
1 stop14h 46mUnited Airlines
Mon 7/11:45 pmSTL - YYC
1 stop8h 58mUnited Airlines
Deal found 5/30$397

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 2,784,634 searches. Data last updated May 30, 2024.
Browse through some of the cheapest WestJet flights traveling from Calgary to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Thu 6/2712:20 amYYC - STL
2 stops16h 41mWestJet
Mon 7/16:00 amSTL - YYC
2 stops14h 17mWestJet
Deal found 5/30$415
Thu 6/2712:20 amYYC - STL
2 stops16h 41mWestJet
Mon 7/16:06 amSTL - YYC
1 stop15h 22mWestJet
Deal found 5/30$436
Fri 6/287:00 amYYC - STL
2 stops13h 55mWestJet
Mon 7/16:00 amSTL - YYC
2 stops13h 32mWestJet
Deal found 5/30$438
Fri 6/287:00 amYYC - STL
2 stops9h 01mWestJet
Mon 7/16:06 amSTL - YYC
1 stop15h 22mWestJet
Deal found 5/30$460
Fri 6/287:00 amYYC - STL
2 stops9h 01mWestJet
Mon 7/110:05 amSTL - YYC
1 stop11h 23mWestJet
Deal found 5/30$470
Thu 6/2712:30 amYYC - STL
1 stop7h 40mWestJet
Mon 7/110:05 amSTL - YYC
1 stop11h 23mWestJet
Deal found 5/30$697

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 2,784,634 searches. Prices were last updated on May 30, 2024.
Scroll through some of the best deals on flights from Calgary to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Fri 6/286:25 amYYC - STL
1 stop14h 46mUnited Airlines
Mon 7/14:36 pmSTL - YYC
1 stop6h 07mUnited Airlines
Deal found 5/29$392
Fri 6/286:25 amYYC - STL
1 stop14h 46mUnited Airlines
Mon 7/11:45 pmSTL - YYC
1 stop8h 58mUnited Airlines
Deal found 5/30$397
Thu 6/2712:20 amYYC - STL
2 stops16h 41mWestJet
Mon 7/16:00 amSTL - YYC
2 stops14h 17mWestJet
Deal found 5/30$415
Thu 6/2712:20 amYYC - STL
2 stops16h 41mWestJet
Mon 7/16:06 amSTL - YYC
1 stop15h 22mWestJet
Deal found 5/30$436
Fri 6/287:00 amYYC - STL
2 stops13h 55mWestJet
Mon 7/16:00 amSTL - YYC
2 stops14h 17mWestJet
Deal found 5/30$438
Fri 6/287:00 amYYC - STL
2 stops9h 01mWestJet
Mon 7/16:06 amSTL - YYC
1 stop15h 22mWestJet
Deal found 5/30$460
Fri 6/287:00 amYYC - STL
2 stops9h 01mWestJet
Mon 7/110:05 amSTL - YYC
1 stop11h 23mWestJet
Deal found 5/30$470
Fri 6/286:25 amYYC - STL
1 stop14h 46mAir Canada
Mon 7/11:45 pmSTL - YYC
1 stop8h 58mAir Canada
Deal found 5/30$472
Fri 6/286:30 pmYYC - STL
3 stops19h 20mMultiple Airlines
Mon 7/112:15 pmSTL - YYC
3 stops23h 56mMultiple Airlines
Deal found 5/30$474

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 2,784,634 searches. Data last updated May 30, 2024.
Scroll through some of the best deals on flights from Calgary to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Fri 6/286:25 amYYC - STL
1 stop14h 46mUnited Airlines
Mon 7/14:36 pmSTL - YYC
1 stop6h 07mUnited Airlines
Deal found 5/29$392
Fri 6/286:25 amYYC - STL
1 stop14h 46mUnited Airlines
Mon 7/11:45 pmSTL - YYC
1 stop8h 58mUnited Airlines
Deal found 5/30$397
Thu 6/2712:20 amYYC - STL
2 stops16h 41mWestJet
Mon 7/16:00 amSTL - YYC
2 stops14h 17mWestJet
Deal found 5/30$415
Thu 6/2712:20 amYYC - STL
2 stops16h 41mWestJet
Mon 7/16:06 amSTL - YYC
1 stop15h 22mWestJet
Deal found 5/30$436
Fri 6/287:00 amYYC - STL
2 stops13h 55mWestJet
Mon 7/16:00 amSTL - YYC
2 stops13h 32mWestJet
Deal found 5/30$438
Fri 6/287:00 amYYC - STL
2 stops9h 01mWestJet
Mon 7/16:06 amSTL - YYC
1 stop15h 22mWestJet
Deal found 5/30$460
Fri 6/287:00 amYYC - STL
2 stops9h 01mWestJet
Mon 7/110:05 amSTL - YYC
1 stop11h 23mWestJet
Deal found 5/30$470
Fri 6/286:25 amYYC - STL
1 stop14h 46mAir Canada
Mon 7/11:45 pmSTL - YYC
1 stop8h 58mAir Canada
Deal found 5/30$472
Fri 6/286:30 pmYYC - STL
3 stops19h 20mMultiple Airlines
Mon 7/112:15 pmSTL - YYC
3 stops23h 56mMultiple Airlines
Deal found 5/30$474

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 2,784,634 searches. Data last updated May 30, 2024.
Users traveling one-way from Calgary to St. Louis can select one of these great deals. For those needing a return trip from Calgary, there is a search form available above.
Tue 10/227:30 pmYYC - STL
1 stop13h 48mMultiple Airlines
Deal found 5/29$164
Thu 8/298:00 amYYC - STL
1 stop25h 18mMultiple Airlines
Deal found 5/30$169
Sat 8/316:00 amYYC - STL
1 stop8h 21mAir Canada
Deal found 5/29$182
Fri 6/286:25 amYYC - STL
1 stop14h 46mUnited Airlines
Deal found 5/29$186
Fri 8/308:00 amYYC - STL
1 stop8h 34mDelta
Deal found 5/29$187
Sat 10/1912:30 amYYC - STL
1 stop11h 24mDelta
Deal found 5/29$189
Fri 7/2612:35 pmYYC - STL
2 stops31h 15mMultiple Airlines
Deal found 5/29$190
Thu 8/298:00 amYYC - STL
2 stops14h 28mDelta
Deal found 5/30$192
Mon 9/212:35 pmYYC - STL
2 stops9h 53mWestJet
Deal found 5/29$198

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$392 - $489

Route

Depart

Return

Price

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 6/28

1 stop14h 46m

Lambert-St Louis

Mon 7/1

1 stop6h 07m

$392

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 6/28

1 stop14h 46m

Lambert-St Louis

Mon 7/1

1 stop8h 58m

$397

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Thu 6/27

2 stops16h 41m

Lambert-St Louis

Mon 7/1

2 stops14h 17m

$415

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Thu 6/27

2 stops16h 41m

Lambert-St Louis

Mon 7/1

1 stop15h 22m

$436

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 6/28

2 stops13h 55m

Lambert-St Louis

Mon 7/1

2 stops13h 32m

$438

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 6/28

2 stops9h 01m

Lambert-St Louis

Mon 7/1

1 stop15h 22m

$460

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 6/28

1 stop14h 46m

Lambert-St Louis

Mon 7/1

1 stop8h 58m

$472

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 6/28

3 stops19h 20m

Lambert-St Louis

Mon 7/1

3 stops23h 56m

$474

CalgaryLambert-St Louis

YYC - STL

YYCSTL

Calgary

Fri 6/28

3 stops19h 20m

Lambert-St Louis

Mon 7/1

3 stops23h 56m

$489

Flights are sorted by cheapest first

Deals found on 5/29

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 May 24, 2024.
To ensure you get the cheapest price possible for a flight from Calgary to St. Louis, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Calgary to St. Louis flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday 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 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

32 - 80.6 °F

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 May 30, 2024.
Read reviews from past customers who have flown United Airlines and WestJet from Calgary to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

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

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

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

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

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

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

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

Boarding

8.2

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

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 $400 on Cheapflights?

    Yes, there are multiple flights from Calgary to St. Louis for under $400. The cheapest flight booked recently is on United Airlines for just $392, but on average you can expect to pay $475.

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

    United Airlines, at $392, was found to be the cheapest airline from Calgary to St. Louis.Alternate airlines to your destination round-trip include WestJet and Air Canada. United Airlines is currently priced 16% below the average price you’ll pay for this route.

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

    $182 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $186 and $187, respectively.

  • What does YYC to STL mean?

    YYC and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. YYC to STL refers to a flight route from Calgary Airport to Lambert-St Louis Airport.

  • 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 5/30.

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

    Currently, September is the cheapest month in which you can book a flight from Calgary to St. Louis (average of $319). Flying from Calgary to St. Louis in July is currently the most expensive (average of $366). 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.

Edmonton to Kansas City flights
Calgary to Kansas City flights
Edmonton to St. Louis flights

Top 2 airlines flying from Calgary to St. Louis

Discover the top 2 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$314Average$507FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$401Average$435FlexibilityNo cancel feeOn-time69%
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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?

Deals for Calgary to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Calgary to St. Louis.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Calgary to St. Louis, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Calgary to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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