FCA - STL

$170 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 4/27. 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

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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Cheap Flight Deals 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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Kalispell to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
United Airlines Logo
6:10 am - 12:47 pmFCA-STL
5h 37m1 stop
United Airlines Logo
4:45 pm - 9:59 pmSTL-FCA
6h 14m1 stop
$319United Airlines
Find Deal
Tue, Apr 15 - Sat, Apr 19
United Airlines Logo
2:28 pm - 9:50 pmFCA-STL
6h 22m1 stop
United Airlines Logo
1:12 pm - 9:59 pmSTL-FCA
9h 47m2 stops
$324United Airlines
Find Deal
Tue, Apr 15 - Sat, Apr 19
Delta Logo
12:32 pm - 9:03 pmFCA-STL
7h 31m1 stop
Delta Logo
7:30 am - 12:53 pmSTL-FCA
6h 23m1 stop
$325Delta
Find Deal
Wed, Apr 30 - Wed, May 7
Delta Logo
12:32 pm - 9:03 pmFCA-STL
7h 31m1 stop
Delta Logo
6:05 pm - 12:30 amSTL-FCA
7h 25m2 stops
$330Delta
Find Deal
Wed, Apr 30 - Wed, May 7
American Airlines Logo
3:27 pm - 11:19 pmFCA-STL
6h 52m1 stop
American Airlines Logo
5:31 am - 10:54 amSTL-FCA
6h 23m1 stop
$347American Airlines
Find Deal
Fri, Jun 6 - Mon, Jun 9
American Airlines Logo
1:17 pm - 8:30 pmFCA-STL
6h 13m1 stop
American Airlines Logo
5:31 am - 10:54 amSTL-FCA
6h 23m1 stop
$393American Airlines
Find Deal
Fri, Jun 6 - Mon, Jun 9
 Logo
10:25 am - 11:25 amFCA-STL
24h 00m2 stops
 Logo
10:20 am - 7:07 pmSTL-FCA
33h 47m2 stops
Thu, May 22 - Sun, May 25
 Logo
10:25 am - 11:25 amFCA-STL
24h 00m3 stops
 Logo
10:20 am - 7:07 pmSTL-FCA
33h 47m2 stops
Thu, May 22 - Sun, May 25
Alaska Airlines Logo
4:19 pm - 9:02 amFCA-STL
15h 43m2 stops
Alaska Airlines Logo
6:22 pm - 11:58 pmSTL-FCA
6h 36m1 stop
$564Alaska Airlines
Find Deal
Fri, Jun 6 - Mon, Jun 9
Alaska Airlines Logo
4:19 pm - 9:18 amFCA-STL
15h 59m2 stops
Alaska Airlines Logo
6:28 am - 7:20 pmSTL-FCA
13h 52m2 stops
$607Alaska Airlines
Find Deal
Mon, Jun 9 - Thu, Jun 12

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.

What’s the cheapest day of the week to fly from Kalispell to St. Louis?

The average price of all round-trip flights from Kalispell to St. Louis clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Kalispell to St. Louis, look for departures on Fridays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from St. Louis, Wednesday is the cheapest day to fly and Thursday is the most expensive.

Good to know

Low season

December

High season

November

Cheapest flight

$170
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 7% increase in price.
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 $170 for a one-way ticket and $319 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, oneworld, and Star Alliance are the airline alliances operating flights between Kalispell and St. Louis, with oneworld 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 $418 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $595 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.

See more FAQs

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.
8.0
DeltaOverall score based on 7898 reviews
7.9Entertainment
8.2Boarding
7.9Comfort
7.3Food
8.5Crew
Airline reviews

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

10.0 ExcellentSunderesh, Mar 2025AUS - BOS
Read more Delta reviews

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

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

Information on your arrival and departure airports

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