FCA - STL

$149 Find Cheap Flights from Kalispell to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kalispell to St. Louis departing on 6/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kalispell to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kalispell to St. Louis, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$309
Delta
Wed 4/1Sun 4/5
FCA - STL • 1 stop
Cheapest one-way
$149
Typical prices: $159-$193
American Airlines
Tue 6/23
FCA - STL • 1 stop
Top airlines
Cheapest • from $309 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Kalispell and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $308 (round-trip)
Shortest trip • 5h 23m (one-way)
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Kalispell to St. Louis (FCA-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kalispell to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Kalispell to St. Louis

Wed, Apr 1 - Sun, Apr 5
Delta Logo
5:56 pm - 12:21 am
FCA
-
STL
5h 25m
1 stop
Delta Logo
6:12 pm - 11:41 pm
STL
-
FCA
6h 29m
1 stop
$309Delta
Wed, Apr 1 - Sun, Apr 5
Delta Logo
5:56 pm - 12:21 am
FCA
-
STL
5h 25m
1 stop
Delta Logo
6:00 am - 5:15 pm
STL
-
FCA
12h 15m
2 stops
$314Delta
Sat, Apr 4 - Thu, Apr 9
Delta Logo
5:09 am - 2:43 pm
FCA
-
STL
8h 34m
1 stop
Delta Logo
6:12 pm - 11:41 pm
STL
-
FCA
6h 29m
1 stop
$317Delta
Tue, Apr 14 - Tue, Apr 21
Delta Logo
2:49 pm - 11:14 pm
FCA
-
STL
7h 25m
1 stop
Delta Logo
1:46 pm - 11:27 pm
STL
-
FCA
10h 41m
2 stops
$322Delta
Thu, Apr 2 - Mon, Apr 6
Delta Logo
5:56 pm - 12:21 am
FCA
-
STL
5h 25m
1 stop
Delta Logo
6:12 pm - 11:41 pm
STL
-
FCA
6h 29m
1 stop
$323Delta
Wed, Apr 1 - Sun, Apr 5
Delta Logo
5:56 pm - 12:21 am
FCA
-
STL
5h 25m
1 stop
Delta Logo
6:12 pm - 11:41 pm
STL
-
FCA
6h 29m
1 stop
$329Delta
Wed, Apr 1 - Sat, Apr 4
Delta Logo
5:56 pm - 12:21 am
FCA
-
STL
5h 25m
1 stop
Delta Logo
6:29 am - 5:15 pm
STL
-
FCA
11h 46m
2 stops
$334Delta
Mon, Mar 30 - Mon, Apr 6
Delta Logo
5:09 am - 1:18 pm
FCA
-
STL
7h 09m
1 stop
Delta Logo
6:12 pm - 11:41 pm
STL
-
FCA
6h 29m
1 stop
$358Delta
Thu, Jun 4 - Mon, Jun 8
American Airlines Logo
1:25 pm - 8:30 pm
FCA
-
STL
6h 05m
1 stop
American Airlines Logo
7:00 am - 12:35 pm
STL
-
FCA
6h 35m
1 stop
$359American Airlines
Sat, Apr 4 - Thu, Apr 9
Delta Logo
5:09 am - 2:43 pm
FCA
-
STL
8h 34m
1 stop
Delta Logo
12:28 pm - 11:41 pm
STL
-
FCA
12h 13m
2 stops
$363Delta
Booking Insights

KAYAK's insights & trends for Kalispell to St. Louis flights

Get data-powered insights and trends into flights from Kalispell to St. Louis to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Kalispell to St. Louis?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Kalispell to St. Louis were found on Delta ($309) and American Airlines ($359).

Good to know

Low seasonNovember
Cheapest flight$149
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly and prices are also 30% lower on average.
Flight from Kalispell to St. Louis

When to book flights from Kalispell to St. Louis

Are your dates flexible? Find out the best times to travel from Kalispell to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Kalispell to St. Louis

  • What is the cheapest flight from Kalispell to St. Louis?

    In the last 3 days, the lowest price for a flight from Kalispell to St. Louis was $149 for a one-way ticket and $309 for a round-trip.

  • Do I need a passport to fly between Kalispell and St. Louis?

    A passport is not required to fly from Kalispell to St. Louis.

  • Which airports will I be using when flying from Kalispell to St. Louis?

    Kalispell airport is called Kalispell Glacier Park and the only airport in St. Louis is Lambert-St Louis.

  • Which aircraft models fly most regularly from Kalispell to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Kalispell to St. Louis?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Kalispell and St. Louis, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Kalispell to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Kalispell to St. Louis are Delta and United Airlines. With an average price for the route of $356 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $566 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Kalispell to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Kalispell to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Kalispell to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Kalispell is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Kalispell to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Kalispell with another airline. Booking your flights between Kalispell and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Kalispell to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Kalispell up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Kalispell to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Kalispell to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kalispell to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8286 reviews
7.2Food
7.9Comfort
7.8Entertainment
8.1Boarding
8.5Crew
Airline reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

2.0 MediocreAnonymous, Mar 2026
LAX - BNA
Read more Delta reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Everything you need to know for your flight from Kalispell to St. Louis

Information on your arrival and departure airports