YYC - STL

$175 Find Cheap Flights from Calgary to St. Louis - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$434
Typical prices: $439-$593
American Airlines
Mon 12/17Fri 12/21
YYC - STL • 1 stop
Cheapest one-way
$175
Typical prices: $309-$430
Multiple Airlines
Tue 12/11
YYC - STL • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Calgary and St. Louis. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
March
Cheapest • 22% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $352 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 57m (one-way)
Insights
Insights
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Calgary to St. Louis (YYC-STL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Calgary to St. Louis

Thu, Dec 17 - Mon, Dec 21
American Airlines Logo
7:00 am - 2:20 pmYYC  Calgary-STL Lambert-St Louis
7h 20m1 stop Dallas/Fort Worth
American Airlines Logo
2:50 pm - 10:47 pmSTL  Lambert-St Louis-YYC Calgary
7h 57m1 stop Dallas/Fort Worth
$434American Airlines
Thu, Dec 17 - Mon, Dec 21
Delta Logo
1:43 pm - 12:46 amYYC  Calgary-STL Lambert-St Louis
11h 03m1 stop Salt Lake City
Delta Logo
11:15 am - 12:15 amSTL  Lambert-St Louis-YYC Calgary
13h 00m2 stops Minneapolis St Paul Salt Lake City
$451Delta
Thu, Dec 17 - Mon, Dec 21
Delta Logo
1:43 pm - 12:46 amYYC  Calgary-STL Lambert-St Louis
11h 03m1 stop Salt Lake City
Delta Logo
2:15 pm - 12:15 amSTL  Lambert-St Louis-YYC Calgary
10h 00m1 stop Salt Lake City
$451Delta
Thu, Dec 10 - Thu, Dec 17
Multiple Airlines Logo
9:50 am - 10:57 amYYC  Calgary-STL Lambert-St Louis
25h 07m2 stops Phoenix Sky Harbor Intl Denver Intl
Multiple Airlines Logo
4:46 pm - 10:15 pmSTL  Lambert-St Louis-YYC Calgary
29h 29m2 stops Orlando Phoenix Sky Harbor Intl
$459Multiple Airlines
Thu, Dec 10 - Thu, Dec 17
Multiple Airlines Logo
6:55 am - 10:57 amYYC  Calgary-STL Lambert-St Louis
28h 02m3 stops Vancouver Intl Phoenix Sky Harbor Intl Denver Intl
Multiple Airlines Logo
4:46 pm - 10:15 pmSTL  Lambert-St Louis-YYC Calgary
29h 29m2 stops Orlando Phoenix Sky Harbor Intl
$463Multiple Airlines
Thu, Dec 17 - Mon, Dec 21
Delta Logo
1:43 pm - 12:46 amYYC  Calgary-STL Lambert-St Louis
11h 03m1 stop Salt Lake City
Delta Logo
2:15 pm - 12:15 amSTL  Lambert-St Louis-YYC Calgary
10h 00m1 stop Salt Lake City
$465Delta
Thu, Dec 17 - Mon, Dec 21
Delta Logo
1:43 pm - 12:46 amYYC  Calgary-STL Lambert-St Louis
11h 03m1 stop Salt Lake City
Delta Logo
2:15 pm - 12:15 amSTL  Lambert-St Louis-YYC Calgary
10h 00m1 stop Salt Lake City
$467Delta
Mon, Apr 12 - Fri, Apr 16
Delta Logo
7:15 am - 5:56 pmYYC  Calgary-STL Lambert-St Louis
9h 41m1 stop Salt Lake City
Delta Logo
12:30 pm - 8:54 pmSTL  Lambert-St Louis-YYC Calgary
9h 24m1 stop Minneapolis St Paul
$473Delta
Tue, Mar 23 - Mon, Mar 29
WestJet Logo
12:25 am - 10:48 amYYC  Calgary-STL Lambert-St Louis
9h 23m1 stop Atlanta Hartsfield-Jackson
WestJet Logo
11:51 am - 6:55 pmSTL  Lambert-St Louis-YYC Calgary
8h 04m1 stop Atlanta Hartsfield-Jackson
$549WestJet
Wed, Mar 24 - Mon, Mar 29
WestJet Logo
11:10 am - 11:18 pmYYC  Calgary-STL Lambert-St Louis
11h 08m2 stops Winnipeg Minneapolis St Paul
WestJet Logo
6:30 am - 5:55 pmSTL  Lambert-St Louis-YYC Calgary
12h 25m2 stops Minneapolis St Paul Edmonton
$629WestJet
Booking Insights

Price, demand and travel trends for Calgary to St. Louis flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Calgary to St. Louis?

Round-trip flights from Calgary to St. Louis typically range from $439 to $593. The lowest price found in the past 5 days was $434, on American Airlines.

What's the cheapest day of the week to fly from Calgary to St. Louis?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Calgary to St. Louis. It’s 3% cheaper than the average day, while Tuesday is the most expensive, with prices 14% higher.

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Key details for Calgary to St. Louis flights

Low season

April

Cheapest flight

$175
Beat the crowds with an average 40% drop in travelers.
The most popular month to fly with an average 62% increase in travelers.
One-way flight from Calgary to St. Louis

When to book flights from Calgary to St. Louis

Are your dates flexible? Find out the best times to travel from Calgary to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Calgary to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Calgary to St. Louis?

    Two cabin classes are available on flights from Calgary to St. Louis:

    • Economy Class
    • First Class

  • How long is a flight from Calgary to St. Louis?

    A nonstop flight from Calgary to St. Louis takes 00m, covering 1,427 miles.

  • Do I need a passport to fly from Calgary to St. Louis?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Calgary to St. Louis flight?

    Round-trip flights from Calgary to St. Louis range from $439 to $593, with an average of $503 over the past 12 months. Anything below $439 counts as a good deal.

  • Have flight prices from Calgary to St. Louis changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $434 to $1,501. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Calgary to St. Louis looking right now?

    One-way fares from Calgary to St. Louis are currently lower than usual. Average one-way flight prices are about $228, which is 37% below the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $78 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

  • Which airports can I use when flying from Calgary to St. Louis?

    Flights from Calgary to St. Louis usually depart from Calgary (YYC) and arrive at Lambert-St Louis (STL).

  • Which airports do connecting flights from Calgary to St. Louis pass through?

    One-stop flights from Calgary to St. Louis most commonly connect through:

    • Minneapolis St Paul (MSP) - 34% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 19% of one-stop connections
    • Denver Intl (DEN) - 13% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from Calgary to St. Louis?

    Yes. Flexible dates can save you up to 15% on flights from Calgary to St. Louis. Thursday is the cheapest departure day at $490 round-trip on average, while Tuesday is the most expensive at $574, a difference of $84.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Calgary to St. Louis?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 57m, compared with 6h 33m via Chicago O'Hare Intl (ORD) and 7h 28m via Minneapolis St Paul (MSP).

  • What is the time difference between Calgary and St. Louis?

    St. Louis is 1 hour ahead of Calgary (Central Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Your guide to booking Calgary to St. Louis flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Tuesday. On this route, Thursday flights average $490, about $84 less than Tuesday fares (15% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Calgary to St. Louis trip for March. Fares historically average $393 round-trip in that month - typically $272 less than the most expensive month, which is November (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

    • Renaissance St. Louis Airport Hotel
    • Drury Inn & Suites St. Louis Airport
    • DoubleTree by Hilton St. Louis Airport

More options for your flight from Calgary to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

Car rentals in St. Louis
Hotels in St. Louis
Vacations in St. Louis