STL - FCA

$170 Find Cheap Flights from St. Louis to Kalispell - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$339
Typical prices: $358-$585
Delta
Sat 9/29Sat 10/6
STL - FCA • 1 stop
Cheapest one-way
$170
Typical prices: $235-$305
American Airlines
Sat 9/29
STL - FCA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Kalispell. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 39% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $330 (round-trip)
Denver Intl (DEN)
Shortest trip • 5h 46m (one-way)
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Insights
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We hope you love your trip to Kalispell!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Kalispell (STL-FCA)

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

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

Tue, Sep 29 - Tue, Oct 6
Delta Logo
5:47 pm - 11:43 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
6h 56m1 stop Minneapolis St Paul
Delta Logo
6:00 am - 2:45 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
7h 45m1 stop Minneapolis St Paul
$339Delta
Mon, Sep 14 - Fri, Sep 18
Delta Logo
5:47 pm - 11:43 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
6h 56m1 stop Minneapolis St Paul
Delta Logo
6:00 pm - 12:44 amFCA  Kalispell Glacier Park-STL Lambert-St Louis
5h 44m1 stop Salt Lake City
$339Delta
Sun, Oct 25 - Thu, Oct 29
American Airlines Logo
7:29 am - 1:27 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
6h 58m1 stop Chicago O'Hare Intl
American Airlines Logo
1:58 pm - 8:57 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
5h 59m1 stop Chicago O'Hare Intl
$339American Airlines
Sun, Oct 25 - Thu, Oct 29
United Airlines Logo
8:50 am - 1:34 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
5h 44m1 stop Denver Intl
United Airlines Logo
6:14 am - 3:43 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
8h 29m2 stops Denver Intl Chicago O'Hare Intl
$344United Airlines
Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
4:45 pm - 9:21 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
5h 36m1 stop Denver Intl
United Airlines Logo
5:04 pm - 11:40 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
5h 36m1 stop Denver Intl
$367United Airlines
Tue, Jan 12 - Tue, Jan 19
Alaska Airlines Logo
3:54 pm - 10:57 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
8h 03m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
1:51 pm - 2:56 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
24h 05m1 stop Seattle/Tacoma Intl
$399Alaska Airlines
Tue, Jan 12 - Mon, Jan 18
Alaska Airlines Logo
3:54 pm - 10:57 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
8h 03m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:37 pm - 2:56 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
18h 19m1 stop Seattle/Tacoma Intl
$399Alaska Airlines
Wed, Oct 14 - Mon, Oct 19
American Airlines Logo
7:29 am - 1:42 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
7h 13m1 stop Chicago O'Hare Intl
American Airlines Logo
2:12 pm - 8:57 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
5h 45m1 stop Chicago O'Hare Intl
$435American Airlines
Thu, Sep 24 - Mon, Sep 28
Multiple Airlines Logo
10:20 am - 7:43 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
34h 23m2 stops Dallas/Fort Worth Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:46 pm - 11:32 amFCA  Kalispell Glacier Park-STL Lambert-St Louis
13h 46m1 stop Las Vegas Harry Reid Intl
$444Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
12:17 pm - 7:56 pmSTL  Lambert-St Louis-FCA Kalispell Glacier Park
8h 39m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
3:08 pm - 1:10 pmFCA  Kalispell Glacier Park-STL Lambert-St Louis
45h 02m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
$511Multiple Airlines
Booking Insights

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

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

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

Round-trip flights from St. Louis to Kalispell start at $339. Prices are below average for this route right now, with typical round-trip fares ranging from $358 to $585. The lowest price found in the past 5 days was $339 on Delta.

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

Monday is the cheapest day of the week to fly from St. Louis to Kalispell, it is 21% cheaper than the average day. Thursday is the most expensive day with flight prices 16% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • February is the cheapest month to fly from St. Louis to Kalispell at $280 round-trip.
  • July ($787) and January ($521) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 181% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from St. Louis to Kalispell the cheapest?

Flights from St. Louis to Kalispell are cheapest 3 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for St. Louis to Kalispell flights

Low season

February

Cheapest flight

$170
Best time to beat the crowds with an average 39% drop in price.
Most popular time to fly with an average 70% increase in price.
Flight from St. Louis to Kalispell

When to book flights from St. Louis to Kalispell

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

Your St. Louis to Kalispell flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

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

    Flights from St. Louis to Kalispell usually depart from Lambert-St Louis (STL) and arrive at Kalispell Glacier Park (FCA).

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

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

    • Economy Class
    • First Class

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

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

    • Denver Intl (DEN) - 38% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 27% of one-stop connections
    • Minneapolis St Paul (MSP) - 13% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 10% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 32% on the St. Louis to Kalispell route. Monday is the cheapest departure day at $368 round-trip on average, while Thursday is the most expensive at $540, a difference of $172. 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 expensive are last-minute St. Louis to Kalispell flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 1% above the route average of $462. Book 3 weeks before departure for the lowest fares.

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

    A nonstop flight from St. Louis to Kalispell takes 0h 00m, covering 1,358 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from St. Louis to Kalispell 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 $339 to $970. That means the highest observed fare was about 3x higher than the lowest one.

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

    One-way fares from St. Louis to Kalispell are currently higher than usual. Average one-way flight prices are about $293, which is 6% above the typical average for this route.

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

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 5h 46m, compared with 6h 04m via Salt Lake City (SLC) and 6h 23m via Chicago O'Hare Intl (ORD).

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

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

  • What car rental options are available at Kalispell Glacier Park Airport (FCA)?

    Kalispell Glacier Park Airport (FCA) hosts 5 major car rental companies, with daily rates starting from around $21 for economy cars. Top options include:
    · Avis
    · Budget
    · Enterprise Rent-A-Car
    · Payless
    · Thrifty

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

    Round-trip flights from St. Louis to Kalispell range from $358 to $585, with an average of $462 over the past 12 months. Anything below $358 counts as a good deal.

Your guide to booking St. Louis to Kalispell flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Thursday. On this route, Monday flights average $368 - about $172 less than Thursday (32% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 3 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your St. Louis to Kalispell trip for February. Fares historically average $280 round-trip in that month - typically $507 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Kalispell Glacier Park Airport.
    - Glacier International Lodge

Everything you need to know for your flight from St. Louis to Kalispell

Information on your arrival and departure airports

St. Louis (STL)
Kalispell (FCA)