$111 Cheap United flights St. Louis (STL) to Kalispell (FCA)

View $111 flight on Tue, Oct 7, 2025Opens in a new window

$111 Cheap United flights St. Louis (STL) to Kalispell (FCA)

Prices were available within the past 7 days and start at $111 for one-way flights and $231 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Oct 13 - Fri, Oct 17
STL
St. Louis
FCA
Kalispell
$231 Roundtrip, found 3 days ago
$231
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 13 from St. Louis to Kalispell, returning Fri, Oct 17, priced at $231 found 3 days ago
United
Thu, Oct 23 - Mon, Oct 27
STL
St. Louis
FCA
Kalispell
$238 Roundtrip, found 22 hours ago
$238
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Oct 23 from St. Louis to Kalispell, returning Mon, Oct 27, priced at $238 found 22 hours ago
United
Mon, Oct 13 - Fri, Oct 17
STL
St. Louis
FCA
Kalispell
$258 Roundtrip, found 3 days ago
$258
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 13 from St. Louis to Kalispell, returning Fri, Oct 17, priced at $258 found 3 days ago
United
Sat, Oct 18 - Wed, Oct 22
STL
St. Louis
FCA
Kalispell
$263 Roundtrip, found 20 hours ago
$263
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Oct 18 from St. Louis to Kalispell, returning Wed, Oct 22, priced at $263 found 20 hours ago
United
Mon, Sep 15 - Mon, Sep 22
STL
St. Louis
FCA
Kalispell
$269 Roundtrip, found 8 hours ago
$269
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Sep 15 from St. Louis to Kalispell, returning Mon, Sep 22, priced at $269 found 8 hours ago
United
Thu, Oct 23 - Mon, Oct 27
STL
St. Louis
FCA
Kalispell
$279 Roundtrip, found 22 hours ago
$279
Roundtrip
found 22 hours ago
Select United flight, departing Thu, Oct 23 from St. Louis to Kalispell, returning Mon, Oct 27, priced at $279 found 22 hours ago
Flights from St. Louis (STL) to Kalispell (FCA)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Glacier Park Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Popular airline
Alaska Airlines
Distance
1358 mi

Frequently asked questions

How much is a United Airlines flight from Lambert-St. Louis Intl. Airport (STL) to Glacier Park Intl. Airport (FCA)?
Finding cheap one-way United Airlines flights from STL to FCA from $111 on Expedia couldn't be simpler --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $231 for your next getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from STL to FCA with United Airlines?
January is one of the most affordable months to get away to Kalispell with United Airlines. You could also find fantastic deals on one-way and round-trip fares in December.
What is the cheapest time to book flights from Lambert-St. Louis Intl. Airport (STL) to Glacier Park Intl. Airport (FCA) with United Airlines?
For cheap United Airlines fares from Lambert-St. Louis Intl. Airport (STL) to Glacier Park Intl. Airport (FCA), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the cost. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Lambert-St. Louis Intl. Airport (STL) to Glacier Park Intl. Airport (FCA)?
Fill in your dates, hit search and select "Nonstop" on Expedia to find any direct flights from STL to FCA with United Airlines or another carrier.
What is the earliest United Airlines flight from STL to FCA?
Find United Airlines's earliest flights from STL to FCA by checking the "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Kalispell?
Catch a United Airlines flight from Lambert-St. Louis Intl. Airport (STL) to Kalispell, and you'll probably touch down at Glacier Park Intl. Airport (FCA). This is the airline's main hub here.
Why fly with United Airlines from STL to FCA?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to depart from STL to FCA with United Airlines. Plus, by joining Expedia's free One Key™ program, you can receive OneKeyCash™* in addition to United Airlines's loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Lambert-St. Louis Intl. Airport (STL) to Glacier Park Intl. Airport (FCA)?
Depending on the type of fare you purchased, a fee is typically charged if you cancel or change your flight more than 24 hours after confirmation. To find flexible fares, select our "Changes included" or "No cancel fee" filter when searching for flights. For more details on changing or canceling your reservation, go to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.