$271 Cheap United flights Louisville (SDF) to Key West (EYW)

View $271 flight on Wed, Feb 18, 2026Opens in a new window

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$271 Cheap United flights Louisville (SDF) to Key West (EYW)

Prices were available within the past 7 days and start at $271 for one-way flights and $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Feb 24 - Wed, Mar 4
SDF
Louisville
EYW
Key West
$288 Roundtrip, found 2 days ago
$288
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 24 from Louisville to Key West, returning Wed, Mar 4, priced at $288 found 2 days ago
United
Wed, Dec 17 - Wed, Dec 24
SDF
Louisville
EYW
Key West
$291 Roundtrip, found 1 day ago
$291
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 17 from Louisville to Key West, returning Wed, Dec 24, priced at $291 found 1 day ago
United
Mon, Oct 27 - Tue, Nov 4
SDF
Louisville
EYW
Key West
$299 Roundtrip, found 3 days ago
$299
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 27 from Louisville to Key West, returning Tue, Nov 4, priced at $299 found 3 days ago
United
Wed, Feb 25 - Thu, Mar 5
SDF
Louisville
EYW
Key West
$320 Roundtrip, found 2 days ago
$320
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 25 from Louisville to Key West, returning Thu, Mar 5, priced at $320 found 2 days ago
United
Mon, Oct 27 - Tue, Nov 4
SDF
Louisville
EYW
Key West
$324 Roundtrip, found 3 days ago
$324
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 27 from Louisville to Key West, returning Tue, Nov 4, priced at $324 found 3 days ago
United
Tue, Feb 24 - Wed, Mar 4
SDF
Louisville
EYW
Key West
$328 Roundtrip, found 2 days ago
$328
Roundtrip
found 2 days ago
Select United flight, departing Tue, Feb 24 from Louisville to Key West, returning Wed, Mar 4, priced at $328 found 2 days ago
Flights from Louisville (SDF) to Key West (EYW)
Origin airport
Louisville Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
American Airlines
Distance
970 mi

Frequently asked questions

How much is a United Airlines flight from Louisville Intl. Airport (SDF) to Key West Intl. Airport (EYW)?
Use the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines return flights from $288 from SDF to EYW. Affordable one-way options from $271 are also on offer.**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 SDF to EYW with United Airlines?
United Airlines flights to Key West tend to be more affordable in the quieter months of September and August. Whether you're after a round-trip or one-way ticket, you could land a better deal then.
What is the cheapest time to book flights from Louisville Intl. Airport (SDF) to Key West Intl. Airport (EYW) with United Airlines?
To find cheap United Airlines fares from Louisville Intl. Airport (SDF) to Key West Intl. Airport (EYW), 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 affect what you pay. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking 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 Louisville Intl. Airport (SDF) to Key West Intl. Airport (EYW)?
To figure out if there's a direct trip from SDF to EYW with United Airlines or any other airlines, use our "Nonstop" filter when browsing for tickets.
What is the earliest United Airlines flight from SDF to EYW?
To find the earliest departures from SDF to EYW with United Airlines, filter your results by "Morning" and "Early Morning." Choosing an early flight usually means you're less likely to experience 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 Key West?
Get on a United Airlines flight from Louisville Intl. Airport (SDF) to Key West, and you'll likely come in to Key West Intl. Airport (EYW). This is the airline's main hub here.
Why fly with United Airlines from SDF to EYW?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to jet off from SDF to EYW with United Airlines. Plus, when you sign up to our One Key™ program, you can receive OneKeyCash™* on top of United Airlines's loyalty program earnings. It's yours to spend on your next adventure.*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 Louisville Intl. Airport (SDF) to Key West Intl. Airport (EYW)?
Depending on your ticket type, a fee generally applies if you cancel or reschedule your booking more than 24 hours after it's been confirmed. To find flexible plane tickets, select our "Changes included" or "No cancel fee" filter when looking for flights. For additional information on canceling or modifying your reservation, go to "Trips," select your flight and click on "Manage Booking."

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