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Cheap flights from Kalispell to St. Louis from $147

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kalispell to St. Louis departing on 5/29. 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 Kalispell to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:10 pm - 12:25 am
FCA
-
STL
5h 15m
1 stop
Delta Logo
6:45 pm - 11:27 pm
STL
-
FCA
5h 42m
1 stop
$303Delta
Fri, May 1 - Sun, May 3
Delta Logo
12:10 pm - 11:13 pm
FCA
-
STL
10h 03m
2 stops
Delta Logo
6:45 pm - 11:27 pm
STL
-
FCA
5h 42m
1 stop
$308Delta
Fri, May 1 - Sun, May 3
Delta Logo
2:49 pm - 11:13 pm
FCA
-
STL
7h 24m
1 stop
Delta Logo
6:45 pm - 11:27 pm
STL
-
FCA
5h 42m
1 stop
$309Delta
Fri, May 1 - Tue, May 5
Delta Logo
12:10 pm - 11:13 pm
FCA
-
STL
10h 03m
2 stops
Delta Logo
6:45 pm - 11:27 pm
STL
-
FCA
5h 42m
1 stop
$314Delta
Fri, May 1 - Tue, May 5
Multiple Airlines Logo
10:36 am - 8:11 pm
FCA
-
STL
8h 35m
1 stop
Multiple Airlines Logo
9:06 pm - 9:46 am
STL
-
FCA
13h 40m
1 stop
$315Multiple Airlines
Fri, May 29 - Sun, May 31
American Airlines Logo
1:25 pm - 8:30 pm
FCA
-
STL
6h 05m
1 stop
American Airlines Logo
6:00 am - 12:35 pm
STL
-
FCA
7h 35m
1 stop
$317American Airlines
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
10:36 am - 7:23 pm
FCA
-
STL
31h 47m
2 stops
Multiple Airlines Logo
9:06 pm - 9:46 am
STL
-
FCA
13h 40m
1 stop
$329Multiple Airlines
Fri, May 29 - Sun, May 31
Delta Logo
12:10 pm - 11:13 pm
FCA
-
STL
10h 03m
2 stops
Delta Logo
1:46 pm - 11:27 pm
STL
-
FCA
10h 41m
2 stops
$374Delta
Fri, May 1 - Tue, May 5
Alaska Airlines Logo
1:43 pm - 11:59 pm
FCA
-
STL
9h 16m
1 stop
Alaska Airlines Logo
4:46 pm - 11:51 pm
STL
-
FCA
8h 05m
1 stop
$384Alaska Airlines
Fri, May 1 - Tue, May 5
United Airlines Logo
1:20 pm - 11:57 pm
FCA
-
STL
9h 37m
2 stops
United Airlines Logo
5:10 am - 10:01 am
STL
-
FCA
5h 51m
1 stop
$403United Airlines
Fri, May 29 - Mon, Jun 1

American Airlines flights from Kalispell to St. Louis

Our best American Airlines deals on Kalispell to St. Louis flight tickets
American Airlines
May 29
FCA1:25 pmKalispell Glacier Park
6h 05m
1 stop
STL8:30 pmLambert-St Louis
Jun 1
STL6:00 amLambert-St Louis
7h 35m
1 stop
FCA12:35 pmKalispell Glacier Park
$317
American Airlines
Sep 8
FCA4:54 pmKalispell Glacier Park
5h 57m
1 stop
STL11:51 pmLambert-St Louis
Sep 14
STL5:40 amLambert-St Louis
6h 57m
1 stop
FCA11:37 amKalispell Glacier Park
$455

United Airlines flights from Kalispell to St. Louis

Our best United Airlines deals on Kalispell to St. Louis flight tickets
United Airlines
May 29
FCA1:20 pmKalispell Glacier Park
9h 37m
2 stops
STL11:57 pmLambert-St Louis
Jun 1
STL5:10 amLambert-St Louis
5h 51m
1 stop
FCA10:01 amKalispell Glacier Park
$403
United Airlines
May 1
FCA2:33 pmKalispell Glacier Park
5h 10m
1 stop
STL8:43 pmLambert-St Louis
May 5
STL4:06 pmLambert-St Louis
6h 51m
1 stop
FCA9:57 pmKalispell Glacier Park
$473
United Airlines
May 1
FCA2:33 pmKalispell Glacier Park
5h 10m
1 stop
STL8:43 pmLambert-St Louis
May 5
STL11:15 amLambert-St Louis
11h 42m
2 stops
FCA9:57 pmKalispell Glacier Park
$515

momondo Fare Finder

 
Customize your flight search to find flights from Kalispell to St. Louis 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 April 17, 2026.
Use the filters below to find and compare flights from Kalispell to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/1

6:10 pm-12:25 am

1 stop5h 15m

Lambert-St Louis

Sun 5/3

6:45 pm-11:27 pm

1 stop5h 42m

$303

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/1

12:10 pm-11:13 pm

2 stops10h 03m

Lambert-St Louis

Sun 5/3

6:45 pm-11:27 pm

1 stop5h 42m

$308

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/1

2:49 pm-11:13 pm

1 stop7h 24m

Lambert-St Louis

Tue 5/5

6:45 pm-11:27 pm

1 stop5h 42m

$309

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/1

12:10 pm-11:13 pm

2 stops10h 03m

Lambert-St Louis

Tue 5/5

6:45 pm-11:27 pm

1 stop5h 42m

$314

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/29

10:36 am-8:11 pm

1 stop8h 35m

Lambert-St Louis

Sun 5/31

9:06 pm-9:46 am

1 stop13h 40m

$315

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/29

1:25 pm-8:30 pm

1 stop6h 05m

Lambert-St Louis

Mon 6/1

6:00 am-12:35 pm

1 stop7h 35m

$317

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/29

10:36 am-7:23 pm

2 stops31h 47m

Lambert-St Louis

Sun 5/31

9:06 pm-9:46 am

1 stop13h 40m

$329

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/1

12:10 pm-11:13 pm

2 stops10h 03m

Lambert-St Louis

Tue 5/5

1:46 pm-11:27 pm

2 stops10h 41m

$374

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/1

1:43 pm-11:59 pm

1 stop9h 16m

Lambert-St Louis

Tue 5/5

4:46 pm-11:51 pm

1 stop8h 05m

$384

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 5/29

1:20 pm-11:57 pm

2 stops9h 37m

Lambert-St Louis

Mon 6/1

5:10 am-10:01 am

1 stop5h 51m

$403

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Kalispell to St. Louis

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 Kalispell and St. Louis?

When to book flights from Kalispell to St. Louis

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

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

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

Fastest flight time

5h 10m

Direct flights

None
The fastest flight from Kalispell to St. Louis takes 5h 10m
There are no direct flights from Kalispell to St. Louis. There are no popular flight routes from Kalispell to St. Louis.
Search flight deals

Frequently asked questions about flying from Kalispell to St. Louis

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

    Lambert-St Louis is 1369.9 mi away from Kalispell Glacier Park. In terms of flight time, this usually takes a little over 5h 10m.

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

    Prices for flights from Kalispell Glacier Park Airport to Lambert-St Louis Airport refresh daily.

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

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

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis 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 Lambert-St Louis 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 Kalispell to St. Louis?

Best airlines flying from Kalispell to St. Louis

Compare and see reviews for airlines that fly from Kalispell to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $205Free CancellationRating
7.9
8,406 reviews
Search Delta flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
9,602 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Clayton
Festus
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

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

It is quick and easy to find Kalispell to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

Yes. All flights to St. Louis from Kalispell on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Kalispell to St. Louis 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 Kalispell to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Kalispell. 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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