What is the cheapest airline that flies from Lambert-St Louis to Kalispell Glacier Park?

American Airlines, United Airlines, and Alaska Airlines are the most popular carriers operating from Lambert-St Louis to Kalispell Glacier Park

What airlines fly to Kalispell?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Kalispell from St. Louis according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Kalispell. Keep in mind that there are 4 different airlines that fly to Kalispell on a routine basis, so you have a few additional options to choose from.

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?

As of July 2025, there are 4 operators available to choose from 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.

$114 Cheap Flights from St. Louis to Kalispell in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Kalispell

Round-trip

One-way

Last minute

Cheap round-trip flights

7:01 am - 2:39 pmSTL-FCA

8h 38m1 stop

3:49 pm - 11:14 pmFCA-STL

6h 25m1 stop

$273American Airlines

Find Deal

Sun, Aug 17 - Wed, Aug 20

8:50 am - 1:51 pmSTL-FCA

6h 01m1 stop

6:12 pm - 12:37 amFCA-STL

5h 25m1 stop

$281Delta

Find Deal

Tue, Jan 13 - Sat, Jan 17

11:51 am - 11:07 pmSTL-FCA

12h 16m2 stops

3:00 pm - 11:10 pmFCA-STL

7h 10m1 stop

$286Delta

Find Deal

Tue, Jan 13 - Sat, Jan 17

6:30 am - 1:50 pmSTL-FCA

8h 20m1 stop

3:00 pm - 11:02 pmFCA-STL

7h 02m1 stop

$288Delta

Find Deal

Sun, Nov 9 - Sun, Nov 16

5:30 pm - 10:48 pmSTL-FCA

6h 18m1 stop

5:15 pm - 11:53 pmFCA-STL

5h 38m1 stop

$301United Airlines

Find Deal

Fri, Aug 15 - Wed, Aug 20

6:10 am - 12:38 pmSTL-FCA

7h 28m1 stop

1:28 pm - 9:57 pmFCA-STL

7h 29m1 stop

$305American Airlines

Find Deal

Sat, Sep 27 - Sat, Oct 4

5:15 am - 10:06 amSTL-FCA

5h 51m1 stop

12:41 pm - 10:35 pmFCA-STL

8h 54m1 stop

$308United Airlines

Find Deal

Sat, Sep 20 - Wed, Sep 24

3:35 pm - 11:59 pmSTL-FCA

9h 24m1 stop

8:02 pm - 2:39 pmFCA-STL

17h 37m1 stop

$318Alaska Airlines

Find Deal

Sun, Sep 14 - Fri, Sep 19

3:57 pm - 11:58 pmSTL-FCA

9h 01m1 stop

6:31 am - 3:01 pmFCA-STL

7h 30m1 stop

$334Hawaiian Airlines

Find Deal

Mon, Oct 6 - Fri, Oct 10

6:30 pm - 12:27 pmSTL-FCA

18h 57m1 stop

8:02 pm - 2:39 pmFCA-STL

17h 37m1 stop

$352Alaska Airlines

Find Deal

Mon, Sep 15 - Sat, Sep 20

American Airlines flights from St. Louis to Kalispell

Our best American Airlines deals on St. Louis to Kalispell flight tickets

American Airlines

Aug 17

STL7:01 amLambert-St Louis

8h 38m

1 stop

FCA2:39 pmKalispell Glacier Park

Aug 20

FCA3:49 pmKalispell Glacier Park

6h 25m

1 stop

STL11:14 pmLambert-St Louis

$273

Find similar

American Airlines

Sep 27

STL6:10 amLambert-St Louis

7h 28m

1 stop

FCA12:38 pmKalispell Glacier Park

Oct 4

FCA1:28 pmKalispell Glacier Park

7h 29m

1 stop

STL9:57 pmLambert-St Louis

$305

Find similar

American Airlines

Sep 10

STL6:10 amLambert-St Louis

7h 28m

1 stop

FCA12:38 pmKalispell Glacier Park

Sep 17

FCA3:49 pmKalispell Glacier Park

6h 01m

1 stop

STL10:50 pmLambert-St Louis

$349

Find similar

Delta flights from St. Louis to Kalispell

Our best Delta deals on St. Louis to Kalispell flight tickets

Delta

Jan 13

STL8:50 amLambert-St Louis

6h 01m

1 stop

FCA1:51 pmKalispell Glacier Park

Jan 17

FCA6:12 pmKalispell Glacier Park

5h 25m

1 stop

STL12:37 amLambert-St Louis

$281

Find similar

Delta

Jan 13

STL11:51 amLambert-St Louis

12h 16m

2 stops

FCA11:07 pmKalispell Glacier Park

Jan 17

FCA3:00 pmKalispell Glacier Park

7h 10m

1 stop

STL11:10 pmLambert-St Louis

$286

Find similar

Delta

Nov 9

STL6:30 amLambert-St Louis

8h 20m

1 stop

FCA1:50 pmKalispell Glacier Park

Nov 16

FCA3:00 pmKalispell Glacier Park

7h 02m

1 stop

STL11:02 pmLambert-St Louis

$288

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sun 8/17

7:01 am-2:39 pm

1 stop8h 38m

Kalispell Glacier Park

Wed 8/20

3:49 pm-11:14 pm

1 stop6h 25m

$273

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 1/13

8:50 am-1:51 pm

1 stop6h 01m

Kalispell Glacier Park

Sat 1/17

6:12 pm-12:37 am

1 stop5h 25m

$281

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Tue 1/13

11:51 am-11:07 pm

2 stops12h 16m

Kalispell Glacier Park

Sat 1/17

3:00 pm-11:10 pm

1 stop7h 10m

$286

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sun 11/9

6:30 am-1:50 pm

1 stop8h 20m

Kalispell Glacier Park

Sun 11/16

3:00 pm-11:02 pm

1 stop7h 02m

$288

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Fri 8/15

5:30 pm-10:48 pm

1 stop6h 18m

Kalispell Glacier Park

Wed 8/20

5:15 pm-11:53 pm

1 stop5h 38m

$301

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 9/27

6:10 am-12:38 pm

1 stop7h 28m

Kalispell Glacier Park

Sat 10/4

1:28 pm-9:57 pm

1 stop7h 29m

$305

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sat 9/20

5:15 am-10:06 am

1 stop5h 51m

Kalispell Glacier Park

Wed 9/24

12:41 pm-10:35 pm

1 stop8h 54m

$308

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Sun 9/14

3:35 pm-11:59 pm

1 stop9h 24m

Kalispell Glacier Park

Fri 9/19

8:02 pm-2:39 pm

1 stop17h 37m

$318

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Mon 10/6

3:57 pm-11:58 pm

1 stop9h 01m

Kalispell Glacier Park

Fri 10/10

6:31 am-3:01 pm

1 stop7h 30m

$334

St. LouisKalispell

STL - FCA

STLFCA

Lambert-St Louis

Mon 9/15

6:30 pm-12:27 pm

1 stop18h 57m

Kalispell Glacier Park

Sat 9/20

8:02 pm-2:39 pm

1 stop17h 37m

$352

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Kalispell?

The month of December is, on average, the cheapest month to fly to Kalispell from St. Louis, with most prices found around $321. If you aren’t able to travel to Kalispell during the month of December, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $376.

What is the cheapest day to depart on your flight to Kalispell?

The cheapest day to depart from St. Louis to Kalispell is on a Wednesday. Travelers who choose to depart for Kalispell on a Wednesday will often find tickets for as low as $481. The most expensive day to fly to Kalispell is Thursday, with ticket prices averaging around $651.

What is the cheapest time of day to depart on your flight to Kalispell?

According to our data, the cheapest time of day to fly to Kalispell is in the afternoon. momondo users have found flights departing from St. Louis to Kalispell in the afternoon for as low as $482. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Kalispell, so prices are often more expensive at around $639 per ticket.

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 $486 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 $375 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

Best Price Found	$114
Fastest flight time	5h 50m
Direct flights	None
Airports in Kalispell	1 airport

The best one-way flight to Kalispell from St. Louis in the past 72 hours is $114. The best round-trip flight deal from St. Louis to Kalispell found on momondo in the last 72 hours is $273.

The fastest flight from St. Louis to Kalispell takes 5h 50m

There are no direct flights from St. Louis to Kalispell. Popular non-direct route for this connection is Lambert-St Louis Airport - Kalispell Glacier Park Airport.

There is 1 airport near Kalispell: Kalispell Glacier Park (FCA)

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 50m, 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?
As of July 2025, there are 4 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Kalispell is American Airlines, representing 35% of all bookings. The subsequent popular airlines are United Airlines at 33%, Delta at 28%, and Alaska Airlines at 4%.

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 Airlines	PriceFrom $251	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $257	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Delta	PriceFrom $298	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
United Airlines	PriceFrom $330	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights

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.