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

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

What airlines fly to St. Louis?

United Airlines, Delta and Alaska Airlines are the top three most popular airlines that fly to St. Louis from Kalispell according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Kalispell Glacier Park Airport to Lambert-St Louis Airport is 2 as of August 2025.

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.

$206 Cheap Flights from Kalispell to St. Louis in 2025

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

Prices are currently low for flights on this route. Typical prices usually range from $411 to $471. The lowest price recently found on this route was $289.

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Find the cheapest flights from Kalispell to St. Louis

Round-trip

One-way

Cheap round-trip flights

1:14 pm - 8:26 pmFCA-STL

6h 12m1 stop

7:16 am - 12:43 pmSTL-FCA

6h 27m1 stop

$289American Airlines

Find Deal

Fri, Oct 10 - Tue, Oct 14

6:10 pm - 12:24 amFCA-STL

5h 14m1 stop

2:15 pm - 11:09 pmSTL-FCA

9h 54m2 stops

$323Delta

Find Deal

Fri, Oct 10 - Tue, Oct 14

1:14 pm - 8:26 pmFCA-STL

6h 12m1 stop

6:00 am - 12:43 pmSTL-FCA

7h 43m1 stop

$351American Airlines

Find Deal

Fri, Oct 10 - Sun, Oct 12

4:53 pm - 11:48 pmFCA-STL

5h 55m1 stop

7:16 am - 12:43 pmSTL-FCA

6h 27m1 stop

$365American Airlines

Find Deal

Sun, Oct 5 - Thu, Oct 9

2:37 pm - 12:03 amFCA-STL

8h 26m1 stop

3:57 pm - 11:58 pmSTL-FCA

9h 01m1 stop

$386Hawaiian Airlines

Find Deal

Fri, Oct 10 - Mon, Oct 13

6:35 pm - 12:03 amFCA-STL

28h 28m1 stop

6:33 am - 12:22 pmSTL-FCA

6h 49m1 stop

$391Alaska Airlines

Find Deal

Fri, Oct 10 - Mon, Oct 13

5:20 am - 2:32 pmFCA-STL

8h 12m2 stops

2:15 pm - 11:09 pmSTL-FCA

9h 54m2 stops

$408Delta

Find Deal

Fri, Oct 10 - Tue, Oct 14

12:41 pm - 3:44 pmFCA-STL

26h 03m1 stop

12:25 pm - 9:31 pmSTL-FCA

10h 06m2 stops

$413United Airlines

Find Deal

Fri, Oct 10 - Tue, Oct 14

1:07 pm - 12:03 amFCA-STL

9h 56m2 stops

6:33 am - 12:22 pmSTL-FCA

6h 49m1 stop

$437Alaska Airlines

Find Deal

Fri, Oct 10 - Mon, Oct 13

12:41 pm - 3:44 pmFCA-STL

26h 03m1 stop

12:25 pm - 9:31 pmSTL-FCA

10h 06m2 stops

$459United Airlines

Find Deal

Fri, Oct 10 - Sun, Oct 12

United Airlines flights from Kalispell to St. Louis

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

United Airlines

Oct 10

FCA12:41 pmKalispell Glacier Park

26h 03m

1 stop

STL3:44 pmLambert-St Louis

Oct 14

STL12:25 pmLambert-St Louis

10h 06m

2 stops

FCA9:31 pmKalispell Glacier Park

$413

Find similar

United Airlines

Oct 10

FCA12:41 pmKalispell Glacier Park

26h 03m

1 stop

STL3:44 pmLambert-St Louis

Oct 12

STL12:25 pmLambert-St Louis

10h 06m

2 stops

FCA9:31 pmKalispell Glacier Park

$459

Find similar

United Airlines

Sep 2

FCA6:30 amKalispell Glacier Park

16h 23m

1 stop

STL11:53 pmLambert-St Louis

Sep 9

STL5:15 amLambert-St Louis

5h 51m

1 stop

FCA10:06 amKalispell Glacier Park

$546

Find similar

Delta flights from Kalispell to St. Louis

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

Delta

Oct 10

FCA6:10 pmKalispell Glacier Park

5h 14m

1 stop

STL12:24 amLambert-St Louis

Oct 14

STL2:15 pmLambert-St Louis

9h 54m

2 stops

FCA11:09 pmKalispell Glacier Park

$323

Find similar

Delta

Oct 10

FCA5:20 amKalispell Glacier Park

8h 12m

2 stops

STL2:32 pmLambert-St Louis

Oct 14

STL2:15 pmLambert-St Louis

9h 54m

2 stops

FCA11:09 pmKalispell Glacier Park

$408

Find similar

Delta

Aug 13

FCA5:20 amKalispell Glacier Park

7h 09m

1 stop

STL1:29 pmLambert-St Louis

Aug 24

STL5:30 pmLambert-St Louis

7h 23m

1 stop

FCA11:53 pmKalispell Glacier Park

$415

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

1:14 pm-8:26 pm

1 stop6h 12m

Lambert-St Louis

Tue 10/14

7:16 am-12:43 pm

1 stop6h 27m

$289

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

6:10 pm-12:24 am

1 stop5h 14m

Lambert-St Louis

Tue 10/14

2:15 pm-11:09 pm

2 stops9h 54m

$323

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

1:14 pm-8:26 pm

1 stop6h 12m

Lambert-St Louis

Sun 10/12

6:00 am-12:43 pm

1 stop7h 43m

$351

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Sun 10/5

4:53 pm-11:48 pm

1 stop5h 55m

Lambert-St Louis

Thu 10/9

7:16 am-12:43 pm

1 stop6h 27m

$365

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

2:37 pm-12:03 am

1 stop8h 26m

Lambert-St Louis

Mon 10/13

3:57 pm-11:58 pm

1 stop9h 01m

$386

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

6:35 pm-12:03 am

1 stop28h 28m

Lambert-St Louis

Mon 10/13

6:33 am-12:22 pm

1 stop6h 49m

$391

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

5:20 am-2:32 pm

2 stops8h 12m

Lambert-St Louis

Tue 10/14

2:15 pm-11:09 pm

2 stops9h 54m

$408

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

12:41 pm-3:44 pm

1 stop26h 03m

Lambert-St Louis

Tue 10/14

12:25 pm-9:31 pm

2 stops10h 06m

$413

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

1:07 pm-12:03 am

2 stops9h 56m

Lambert-St Louis

Mon 10/13

6:33 am-12:22 pm

1 stop6h 49m

$437

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Fri 10/10

12:41 pm-3:44 pm

1 stop26h 03m

Lambert-St Louis

Sun 10/12

12:25 pm-9:31 pm

2 stops10h 06m

$459

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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

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

In general, March is the cheapest month to fly from Kalispell to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $373. The month of October is another great option to travel to St. Louis, with average flight prices from Kalispell averaging around $378.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $386. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $736. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Kalispell at noon is the least expensive time of day to depart. momondo users have found prices as low as $386 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $595 per ticket.

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

Best Price Found	$206
Fastest flight time	5h 13m
Direct flights	None
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Kalispell in the past 72 hours is $206. The best round-trip flight deal from Kalispell to St. Louis found on momondo in the last 72 hours is $289.

The fastest flight from Kalispell to St. Louis takes 5h 13m

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

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

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 13m.
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?
The number of operators available for flights from Kalispell Glacier Park Airport to Lambert-St Louis Airport is 2 as of August 2025.
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?
momondo data reveals that the most frequently booked airline on the route from Kalispell to St. Louis is United Airlines, representing 58% of all bookings. The subsequent popular airline is Delta at 42%.

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
Delta	PriceFrom $287	Free Cancellation	Rating 8.0 7,987 reviews		Search Delta flights
United Airlines	PriceFrom $311	Free Cancellation	Rating 7.4 8,912 reviews		Search United Airlines flights

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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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Cheap flights from Kalispell to St. Louis from $206

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 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Kalispell to St. Louis

Cheap round-trip flights

Cheap one-way flights

United Airlines flights from Kalispell to St. Louis

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

Delta flights from Kalispell to St. Louis

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

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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?

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

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

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

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

What airlines fly to St. Louis?

When to book flights from Kalispell to St. Louis

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

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

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

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

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?

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

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

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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