$271 Cheap Flights from Kalispell (FCA) to Key West (EYW)

View $271 flight on Sat, May 23, 2026Opens in a new window

Popular airlines from Glacier Park Intl. Airport (FCA) to Key West Intl. Airport (EYW)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Kalispell to Key West (FCA-EYW)

Prices were available within the past 7 days and start at $271 for one-way flights and $822 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, May 12 - Fri, May 15
FCA
Kalispell
EYW
Key West
$822 Roundtrip, found 1 day ago
$822
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, May 12 from Kalispell to Key West, returning Fri, May 15, priced at $822 found 1 day ago
American Airlines
Sun, May 24 - Wed, Jun 3
FCA
Kalispell
EYW
Key West
$856 Roundtrip, found 1 day ago
$856
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, May 24 from Kalispell to Key West, returning Wed, Jun 3, priced at $856 found 1 day ago
Delta
Tue, May 12 - Fri, May 15
FCA
Kalispell
EYW
Key West
$868 Roundtrip, found 1 day ago
$868
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, May 12 from Kalispell to Key West, returning Fri, May 15, priced at $868 found 1 day ago
Delta
Tue, May 12 - Fri, May 15
FCA
Kalispell
EYW
Key West
$906 Roundtrip, found 1 day ago
$906
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, May 12 from Kalispell to Key West, returning Fri, May 15, priced at $906 found 1 day ago
American Airlines
Sun, May 24 - Wed, Jun 3
FCA
Kalispell
EYW
Key West
$911 Roundtrip, found 1 day ago
$911
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, May 24 from Kalispell to Key West, returning Wed, Jun 3, priced at $911 found 1 day ago
American Airlines
Sun, Jun 7 - Fri, Jun 12
FCA
Kalispell
EYW
Key West
$919 Roundtrip, found 1 day ago
$919
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Jun 7 from Kalispell to Key West, returning Fri, Jun 12, priced at $919 found 1 day ago
Delta
Tue, May 12 - Fri, May 15
FCA
Kalispell
EYW
Key West
$937 Roundtrip, found 1 day ago
$937
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, May 12 from Kalispell to Key West, returning Fri, May 15, priced at $937 found 1 day ago
Delta
Sun, May 24 - Wed, Jun 3
FCA
Kalispell
EYW
Key West
$949 Roundtrip, found 1 day ago
$949
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, May 24 from Kalispell to Key West, returning Wed, Jun 3, priced at $949 found 1 day ago
American Airlines
Sun, Jun 7 - Fri, Jun 12
FCA
Kalispell
EYW
Key West
$959 Roundtrip, found 1 day ago
$959
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Jun 7 from Kalispell to Key West, returning Fri, Jun 12, priced at $959 found 1 day ago
United
Sun, May 24 - Wed, Jun 3
FCA
Kalispell
EYW
Key West
$1,245 Roundtrip, found 1 day ago
$1,245
Roundtrip
found 1 day ago
Select United flight, departing Sun, May 24 from Kalispell to Key West, returning Wed, Jun 3, priced at $1,245 found 1 day ago

Frequently asked questions

How much does a flight from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) cost?
You can find cheap one-way flights from $271 and cheap return flights from $822 Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) with Expedia. Return flights often range between $826 and $2370. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
The cheapest month to fly from FCA to EYW is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
Enter FCA to EYW and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
United is one of the cheapest airlines offering connecting flights from Glacier Park Intl. (FCA) to Key West Intl. (EYW), with round-trip tickets starting from around $722. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
To find a cheap flight from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
The earliest flight from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) typically departs at 5:05 AM, operated by Delta. This is a seasonal service active in March. An early departure can help you make the most of your time in sunny Key West. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
For flights from Glacier Park International Airport (FCA) to Key West International Airport (EYW), the most popular departure times are in the early morning, from 3am to 6am. About 44% of travelers choose this time window. Many major carriers, including Delta Airlines, operate flights during this period. This timing is favored because it lets you maximize your day in Key West upon arrival.
How long does it take to fly from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
A flight from FCA to EYW with a layover takes around 7 hours 30 minutes, with the route covering approximately 2,409 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
First class seats are offered on the FCA to EYW route with Delta Air Lines and United Airlines.
How do I earn miles on a Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) flight with Expedia?
It's easy to earn miles on a Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Key West from Glacier Park Intl. (FCA)?
From Glacier Park Intl. (FCA), you can fly typically into Key West Intl. (EYW) to reach Key West. Some flights may connect through major hubs like Salt Lake City Intl. (SLC), Denver Intl. (DEN), Seattle - Tacoma Intl. (SEA) before reaching Key West. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) at the last minute?
Typically, booking a last minute flight from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) flight and hotel package?
Securing a Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) Key West Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.)?
If you booked your Kalispell, MT (FCA-Glacier Park Intl.) to Key West, FL (EYW-Key West Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Glacier Park Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$822
Distance
2408 mi

Book with confidence

Kalispell to Key West Flights

The cheapest times to fly from Kalispell to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kalispell to Key West are during the month of May. You can find some of the cheapest flights from Kalispell to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kalispell to Key West

Sunday is one of the best days to book for cheap flights from Kalispell to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kalispell to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kalispell to Key West in 2026. You can also book with separate airlines for your outbound and return journeys, from $271 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kalispell to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kalispell to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Kalispell to Key West Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia