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Cheap flights from St. Louis to Kalispell from $155

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 6/6. 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.
Delta Logo
5:42 pm - 11:56 pm
STL
-
FCA
7h 14m
1 stop
Delta Logo
3:14 pm - 11:26 pm
FCA
-
STL
7h 12m
1 stop
$297Delta
Wed, Aug 19 - Tue, Aug 25
Delta Logo
10:33 am - 8:15 pm
STL
-
FCA
10h 42m
2 stops
Delta Logo
5:10 am - 1:34 pm
FCA
-
STL
7h 24m
1 stop
$302Delta
Sat, Aug 8 - Sat, Aug 15
American Airlines Logo
5:42 am - 11:36 am
STL
-
FCA
6h 54m
1 stop
American Airlines Logo
3:50 pm - 11:42 pm
FCA
-
STL
6h 52m
1 stop
$337American Airlines
Wed, Aug 19 - Tue, Aug 25
American Airlines Logo
5:29 am - 11:34 am
STL
-
FCA
7h 05m
1 stop
American Airlines Logo
4:48 pm - 12:16 am
FCA
-
STL
6h 28m
1 stop
$338American Airlines
Wed, Jun 10 - Mon, Jun 15
Delta Logo
8:48 am - 5:25 pm
STL
-
FCA
9h 37m
2 stops
Delta Logo
6:20 am - 3:10 pm
FCA
-
STL
7h 50m
1 stop
$343Delta
Fri, Aug 7 - Wed, Aug 12
American Airlines Logo
5:42 am - 11:36 am
STL
-
FCA
6h 54m
1 stop
American Airlines Logo
3:26 pm - 11:43 pm
FCA
-
STL
7h 17m
1 stop
$350American Airlines
Wed, Sep 2 - Wed, Sep 9
Delta Logo
5:42 pm - 11:56 pm
STL
-
FCA
7h 14m
1 stop
Delta Logo
6:20 am - 3:10 pm
FCA
-
STL
7h 50m
1 stop
$363Delta
Tue, Aug 11 - Wed, Aug 19
Delta Logo
6:00 am - 5:25 pm
STL
-
FCA
12h 25m
2 stops
Delta Logo
6:05 pm - 12:41 am
FCA
-
STL
5h 36m
1 stop
$368Delta
Fri, Aug 21 - Fri, Aug 28
Alaska Airlines Logo
6:00 am - 12:21 pm
STL
-
FCA
7h 21m
1 stop
Alaska Airlines Logo
2:03 pm - 11:59 pm
FCA
-
STL
8h 56m
1 stop
$377Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
7:03 am - 12:45 pm
STL
-
FCA
6h 42m
1 stop
American Airlines Logo
4:48 pm - 12:16 am
FCA
-
STL
6h 28m
1 stop
$378American Airlines
Wed, Jun 10 - Mon, Jun 15

American Airlines flights from St. Louis to Kalispell

Our best American Airlines deals on St. Louis to Kalispell flight tickets
American Airlines
Aug 19
STL5:42 amLambert-St Louis
6h 54m
1 stop
FCA11:36 amKalispell Glacier Park
Aug 25
FCA3:50 pmKalispell Glacier Park
6h 52m
1 stop
STL11:42 pmLambert-St Louis
$337
American Airlines
Jun 10
STL5:29 amLambert-St Louis
7h 05m
1 stop
FCA11:34 amKalispell Glacier Park
Jun 15
FCA4:48 pmKalispell Glacier Park
6h 28m
1 stop
STL12:16 amLambert-St Louis
$338
American Airlines
Sep 2
STL5:42 amLambert-St Louis
6h 54m
1 stop
FCA11:36 amKalispell Glacier Park
Sep 9
FCA3:26 pmKalispell Glacier Park
7h 17m
1 stop
STL11:43 pmLambert-St Louis
$350

United Airlines flights from St. Louis to Kalispell

Our best United Airlines deals on St. Louis to Kalispell flight tickets
United Airlines
Oct 24
STL9:04 amLambert-St Louis
14h 31m
2 stops
FCA10:35 pmKalispell Glacier Park
Oct 28
FCA2:29 pmKalispell Glacier Park
5h 30m
1 stop
STL8:59 pmLambert-St Louis
$392
United Airlines
Jun 9
STL5:10 amLambert-St Louis
5h 51m
1 stop
FCA10:01 amKalispell Glacier Park
Jun 10
FCA5:28 pmKalispell Glacier Park
5h 29m
1 stop
STL11:57 pmLambert-St Louis
$399
United Airlines
Aug 8
STL5:33 pmLambert-St Louis
6h 22m
1 stop
FCA10:55 pmKalispell Glacier Park
Aug 13
FCA5:04 pmKalispell Glacier Park
5h 36m
1 stop
STL11:40 pmLambert-St Louis
$411

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 May 26, 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

Cheapest round-trip

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Wed 8/19

5:42 pm-11:56 pm

1 stop7h 14m

Kalispell Glacier Park

Tue 8/25

3:14 pm-11:26 pm

1 stop7h 12m

$297

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 8/8

10:33 am-8:15 pm

2 stops10h 42m

Kalispell Glacier Park

Sat 8/15

5:10 am-1:34 pm

1 stop7h 24m

$302

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Wed 8/19

5:42 am-11:36 am

1 stop6h 54m

Kalispell Glacier Park

Tue 8/25

3:50 pm-11:42 pm

1 stop6h 52m

$337

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Wed 6/10

5:29 am-11:34 am

1 stop7h 05m

Kalispell Glacier Park

Mon 6/15

4:48 pm-12:16 am

1 stop6h 28m

$338

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 8/7

8:48 am-5:25 pm

2 stops9h 37m

Kalispell Glacier Park

Wed 8/12

6:20 am-3:10 pm

1 stop7h 50m

$343

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Wed 9/2

5:42 am-11:36 am

1 stop6h 54m

Kalispell Glacier Park

Wed 9/9

3:26 pm-11:43 pm

1 stop7h 17m

$350

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 8/11

5:42 pm-11:56 pm

1 stop7h 14m

Kalispell Glacier Park

Wed 8/19

6:20 am-3:10 pm

1 stop7h 50m

$363

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 8/21

6:00 am-5:25 pm

2 stops12h 25m

Kalispell Glacier Park

Fri 8/28

6:05 pm-12:41 am

1 stop5h 36m

$368

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 10/24

6:00 am-12:21 pm

1 stop7h 21m

Kalispell Glacier Park

Wed 10/28

2:03 pm-11:59 pm

1 stop8h 56m

$377
Quickest round-trip

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Wed 6/10

7:03 am-12:45 pm

1 stop6h 42m

Kalispell Glacier Park

Mon 6/15

4:48 pm-12:16 am

1 stop6h 28m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 from St. Louis 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 $401 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 $349 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 54m

Direct flights

None
The fastest flight from St. Louis to Kalispell takes 5h 54m
There are no direct flights from St. Louis to Kalispell. There are no popular flight routes from St. Louis to Kalispell.
Search flight deals

Frequently asked questions about flying from St. Louis to Kalispell

  • 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 54m, 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 $226Free CancellationRating
7.1
11,632 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,424 reviews
Search Delta flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,752 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $257Free CancellationRating
7.9
12,419 reviews
Search Alaska 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
Cut Bank
Eureka
Essex

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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