YYC - STL

C$ 245 Find Cheap Flights from Calgary to St. Louis – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 607
Typical prices: C$ 614-C$ 830
American Airlines
Mon 17/12Fri 21/12
YYC - STL • 1 stop
Cheapest one-way flights
C$ 245
Typical prices: C$ 432-C$ 601
Multiple Airlines
Tue 11/12
YYC - STL • 2 stops
Direct 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 C$ 492 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 57m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy 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, 17 Dec - Mon, 21 Dec
American Airlines Logo
7:00 a.m. - 2:20 p.m.YYC  Calgary-STL Lambert-St Louis
7h 20m1 stop Dallas/Fort Worth
American Airlines Logo
2:50 p.m. - 10:47 p.m.STL  Lambert-St Louis-YYC Calgary
7h 57m1 stop Dallas/Fort Worth
C$ 607American Airlines
3+ days ago
Thu, 17 Dec - Mon, 21 Dec
Delta Logo
1:43 p.m. - 12:46 a.m.YYC  Calgary-STL Lambert-St Louis
11h 03m1 stop Salt Lake City
Delta Logo
11:15 a.m. - 12:15 a.m.STL  Lambert-St Louis-YYC Calgary
13h 00m2 stops Minneapolis St Paul Salt Lake City
C$ 631Delta
2 days ago
Thu, 17 Dec - Mon, 21 Dec
Delta Logo
1:43 p.m. - 12:46 a.m.YYC  Calgary-STL Lambert-St Louis
11h 03m1 stop Salt Lake City
Delta Logo
2:15 p.m. - 12:15 a.m.STL  Lambert-St Louis-YYC Calgary
10h 00m1 stop Salt Lake City
C$ 631Delta
2 days ago
Thu, 10 Dec - Thu, 17 Dec
Multiple Airlines Logo
9:50 a.m. - 10:57 a.m.YYC  Calgary-STL Lambert-St Louis
25h 07m2 stops Phoenix Sky Harbor Intl Denver Intl
Multiple Airlines Logo
4:46 p.m. - 10:15 p.m.STL  Lambert-St Louis-YYC Calgary
29h 29m2 stops Orlando Phoenix Sky Harbor Intl
C$ 642Multiple Airlines
3+ days ago
Thu, 10 Dec - Thu, 17 Dec
Multiple Airlines Logo
6:55 a.m. - 10:57 a.m.YYC  Calgary-STL Lambert-St Louis
28h 02m3 stops Vancouver Intl Phoenix Sky Harbor Intl Denver Intl
Multiple Airlines Logo
4:46 p.m. - 10:15 p.m.STL  Lambert-St Louis-YYC Calgary
29h 29m2 stops Orlando Phoenix Sky Harbor Intl
C$ 648Multiple Airlines
3+ days ago
Thu, 17 Dec - Mon, 21 Dec
Delta Logo
1:43 p.m. - 12:46 a.m.YYC  Calgary-STL Lambert-St Louis
11h 03m1 stop Salt Lake City
Delta Logo
2:15 p.m. - 12:15 a.m.STL  Lambert-St Louis-YYC Calgary
10h 00m1 stop Salt Lake City
C$ 650Delta
1 day ago
Fri, 12 Feb - Mon, 15 Feb
Air Canada Logo
7:00 a.m. - 3:26 p.m.YYC  Calgary-STL Lambert-St Louis
8h 26m1 stop Toronto Pearson Intl
Air Canada Logo
4:05 p.m. - 12:24 a.m.STL  Lambert-St Louis-YYC Calgary
8h 19m1 stop Toronto Pearson Intl
C$ 684Air Canada
2 days ago
Tue, 23 Mar - Mon, 29 Mar
WestJet Logo
12:25 a.m. - 10:48 a.m.YYC  Calgary-STL Lambert-St Louis
9h 23m1 stop Atlanta Hartsfield-Jackson
WestJet Logo
11:51 a.m. - 6:55 p.m.STL  Lambert-St Louis-YYC Calgary
8h 04m1 stop Atlanta Hartsfield-Jackson
C$ 768WestJet
2 days ago
Wed, 24 Mar - Mon, 29 Mar
WestJet Logo
11:10 a.m. - 11:18 p.m.YYC  Calgary-STL Lambert-St Louis
11h 08m2 stops Winnipeg Minneapolis St Paul
WestJet Logo
6:30 a.m. - 5:55 p.m.STL  Lambert-St Louis-YYC Calgary
12h 25m2 stops Minneapolis St Paul Edmonton
C$ 880WestJet
2 days ago
Mon, 12 Apr - Fri, 16 Apr
WestJet Logo
9:15 a.m. - 11:39 p.m.YYC  Calgary-STL Lambert-St Louis
13h 24m2 stops Toronto Pearson Intl Atlanta Hartsfield-Jackson
WestJet Logo
6:30 a.m. - 4:35 p.m.STL  Lambert-St Louis-YYC Calgary
11h 05m2 stops Minneapolis St Paul Vancouver Intl
C$ 887WestJet
3+ days ago
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 C$ 614 to C$ 830. The lowest price found in the past 5 days was C$ 607, 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.

Find deals

Key details for Calgary to St. Louis flights

Low season

April

Cheapest flight

C$ 245
Beat the crowds with an average 40% drop in traveller numbers.
The most popular month to fly with an average 62% increase in traveller numbers.
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.

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

    Only Economy Class is available on flights from Calgary to St. Louis.

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

    A direct flight from Calgary to St. Louis takes 00m, covering 3,695 km.

  • 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 C$ 614 to C$ 830, with an average of C$ 703 over the past 12 months. Anything below C$ 614 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 C$ 607 to C$ 2,287. That means the highest observed fare was about 4x 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 C$ 331, which is 35% 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 C$ 109 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 C$ 685 round-trip on average, while Tuesday is the most expensive at C$ 803, a difference of C$ 117.

    KAYAK's flexible dates feature shows options up to three 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 when travelling 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.

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

    Some of the most popular sights in St. Louis are Forest Park Hotel, Hyatt Regency St Louis At The Arch, 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 C$ 685, about C$ 117 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 C$ 550 round-trip in that month – typically C$ 380 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