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Cheap flights from St. Louis to Kalispell from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kalispell departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Kalispell

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:10 am - 10:01 am
STL
-
FCA
5h 51m
1 stop
United Airlines Logo
5:28 pm - 11:57 pm
FCA
-
STL
5h 29m
1 stop
$257United Airlines
Tue, May 26 - Sat, Jun 6
Multiple Airlines Logo
4:20 pm - 11:47 pm
STL
-
FCA
8h 27m
1 stop
Multiple Airlines Logo
6:05 am - 3:24 pm
FCA
-
STL
8h 19m
1 stop
$281Multiple Airlines
Sun, Apr 5 - Sun, Apr 12
Delta Logo
6:45 pm - 11:27 pm
STL
-
FCA
5h 42m
1 stop
Delta Logo
2:30 pm - 11:21 pm
FCA
-
STL
7h 51m
1 stop
$288Delta
Tue, May 5 - Sun, May 10
Delta Logo
12:28 pm - 11:41 pm
STL
-
FCA
12h 13m
2 stops
Delta Logo
5:09 am - 1:17 pm
FCA
-
STL
7h 08m
1 stop
$293Delta
Thu, Apr 2 - Sun, Apr 5
Alaska Airlines Logo
5:33 pm - 5:00 pm
STL
-
FCA
24h 27m
1 stop
Alaska Airlines Logo
5:40 pm - 3:16 pm
FCA
-
STL
20h 36m
1 stop
$297Alaska Airlines
Thu, May 14 - Tue, May 19
Delta Logo
6:12 pm - 11:41 pm
STL
-
FCA
6h 29m
1 stop
Delta Logo
5:56 pm - 12:21 am
FCA
-
STL
5h 25m
1 stop
$308Delta
Fri, Apr 3 - Mon, Apr 6
United Airlines Logo
2:50 pm - 9:57 pm
STL
-
FCA
8h 07m
1 stop
United Airlines Logo
2:41 pm - 8:41 pm
FCA
-
STL
5h 00m
1 stop
$319United Airlines
Fri, Mar 20 - Fri, Mar 27
United Airlines Logo
6:00 am - 11:29 am
STL
-
FCA
6h 29m
1 stop
United Airlines Logo
5:28 pm - 11:57 pm
FCA
-
STL
5h 29m
1 stop
$325United Airlines
Tue, Jun 9 - Tue, Jun 16
Delta Logo
7:00 am - 11:26 am
STL
-
FCA
5h 26m
1 stop
Delta Logo
6:13 pm - 12:30 am
FCA
-
STL
5h 17m
1 stop
$333Delta
Tue, May 26 - Thu, Jun 4
United Airlines Logo
6:00 am - 11:29 am
STL
-
FCA
6h 29m
1 stop
United Airlines Logo
12:35 pm - 9:16 pm
FCA
-
STL
7h 41m
1 stop
$337United Airlines
Sun, May 24 - Thu, Jun 4

United Airlines flights from St. Louis to Kalispell

Our best United Airlines deals on St. Louis to Kalispell flight tickets
United Airlines
Mar 20
STL2:50 pmLambert-St Louis
8h 07m
1 stop
FCA9:57 pmKalispell Glacier Park
Mar 27
FCA2:41 pmKalispell Glacier Park
5h 00m
1 stop
STL8:41 pmLambert-St Louis
$319
United Airlines
Apr 21
STL9:10 amLambert-St Louis
13h 17m
2 stops
FCA9:27 pmKalispell Glacier Park
Apr 22
FCA2:33 pmKalispell Glacier Park
5h 21m
1 stop
STL8:54 pmLambert-St Louis
$418
United Airlines
Feb 21
STL4:30 pmLambert-St Louis
6h 42m
1 stop
FCA10:12 pmKalispell Glacier Park
Feb 28
FCA6:00 amKalispell Glacier Park
6h 14m
1 stop
STL1:14 pmLambert-St Louis
$419

Alaska Airlines flights from St. Louis to Kalispell

Our best Alaska Airlines deals on St. Louis to Kalispell flight tickets
Alaska Airlines
May 14
STL5:33 pmLambert-St Louis
24h 27m
1 stop
FCA5:00 pmKalispell Glacier Park
May 19
FCA5:40 pmKalispell Glacier Park
20h 36m
1 stop
STL3:16 pmLambert-St Louis
$297
Alaska Airlines
May 14
STL5:33 pmLambert-St Louis
24h 27m
1 stop
FCA5:00 pmKalispell Glacier Park
May 19
FCA4:14 pmKalispell Glacier Park
23h 23m
1 stop
STL4:37 pmLambert-St Louis
$348
Alaska Airlines
May 14
STL5:33 pmLambert-St Louis
24h 27m
1 stop
FCA5:00 pmKalispell Glacier Park
May 19
FCA5:40 pmKalispell Glacier Park
21h 57m
2 stops
STL4:37 pmLambert-St Louis
$381

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Kalispell 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, momondo users made 832,500 searches. Data last updated February 21, 2026.
Use the filters below to find and compare flights from St. Louis to Kalispell that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 5/26

5:10 am-10:01 am

1 stop5h 51m

Kalispell Glacier Park

Sat 6/6

5:28 pm-11:57 pm

1 stop5h 29m

$257

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sun 4/5

4:20 pm-11:47 pm

1 stop8h 27m

Kalispell Glacier Park

Sun 4/12

6:05 am-3:24 pm

1 stop8h 19m

$281

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 5/5

6:45 pm-11:27 pm

1 stop5h 42m

Kalispell Glacier Park

Sun 5/10

2:30 pm-11:21 pm

1 stop7h 51m

$288

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Thu 4/2

12:28 pm-11:41 pm

2 stops12h 13m

Kalispell Glacier Park

Sun 4/5

5:09 am-1:17 pm

1 stop7h 08m

$293

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Thu 5/14

5:33 pm-5:00 pm

1 stop24h 27m

Kalispell Glacier Park

Tue 5/19

5:40 pm-3:16 pm

1 stop20h 36m

$297

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 4/3

6:12 pm-11:41 pm

1 stop6h 29m

Kalispell Glacier Park

Mon 4/6

5:56 pm-12:21 am

1 stop5h 25m

$308

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 3/20

2:50 pm-9:57 pm

1 stop8h 07m

Kalispell Glacier Park

Fri 3/27

2:41 pm-8:41 pm

1 stop5h 00m

$319

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 6/9

6:00 am-11:29 am

1 stop6h 29m

Kalispell Glacier Park

Tue 6/16

5:28 pm-11:57 pm

1 stop5h 29m

$325

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 5/26

7:00 am-11:26 am

1 stop5h 26m

Kalispell Glacier Park

Thu 6/4

6:13 pm-12:30 am

1 stop5h 17m

$333

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sun 5/24

6:00 am-11:29 am

1 stop6h 29m

Kalispell Glacier Park

Thu 6/4

12:35 pm-9:16 pm

1 stop7h 41m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kalispell from

How to get the cheapest flight ticket from St. Louis to Kalispell

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Kalispell?

What is the cheapest month to fly to Kalispell?

The month of February is, on average, the cheapest month to fly to Kalispell from St. Louis, with most prices found around $280. If you aren’t able to travel to Kalispell during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $288.

How far in advance should I book a flight to Kalispell?

You are more likely to see cheaper flights to Kalispell from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Kalispell for around $422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kalispell from St. Louis for as low as $340 on momondo.

When to book flights from St. Louis to Kalispell

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Kalispell according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Kalispell (STL to FCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Kalispell

Fastest flight time

5h 42m

Direct flights

None
The fastest flight from St. Louis to Kalispell takes 5h 42m
There are no direct flights from St. Louis to Kalispell. There are no popular flight routes from St. Louis to Kalispell.
Search flight deals

  • How far is Lambert-St Louis to Kalispell Glacier Park by plane?

    Kalispell Glacier Park is 1369.9 mi away from Lambert-St Louis. Flights usually cover this in 5h 42m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Kalispell Glacier Park Airport?

    Prices for flights from Lambert-St Louis Airport to Kalispell Glacier Park Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Kalispell Glacier Park Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Kalispell Glacier Park Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Kalispell Glacier Park Airport.

  • What documentation or ID do you need to fly to Kalispell Glacier Park Airport?

    The travel and health documents you'll need for your trip to Kalispell Glacier Park Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kalispell Glacier Park Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Kalispell?

Best airlines flying from St. Louis to Kalispell

Compare and see reviews for airlines that fly from St. Louis to Kalispell with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $237Free CancellationRating
7.2
11,334 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,228 reviews
Search Delta flights
Alaska AirlinesPriceFrom $257Free CancellationRating
8.0
11,918 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,335 reviews
Search United Airlines flights

Traveling to a place near Kalispell?

Book flights to Kalispell if you plan to visit one of these locations
Whitefish
Columbia Falls
Polson
East Glacier Park
Essex
Eureka
Cut Bank

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Kalispell?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Kalispell. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Kalispell with flexible booking policies on momondo?

Flights from St. Louis to Kalispell with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Kalispell?

Once you have performed a search for St. Louis to Kalispell flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Kalispell right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Kalispell from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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