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$197+ Cheap flights from Louisville to Key West (SDF - EYW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — EYW
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Key West are usually found in August or September, booked 64 days in advance, depart on a Saturday or Wednesday and return on a Monday

Cheap flight deals from Louisville to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$283
(American Airlines)

One-way from

$197
(Delta)

Popular in

March

Cheapest in

August

Average price

$387
From Louisville Intl to Key West
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One-way flight from Louisville Intl to Key West
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Highest demand for flights based on searches. 8% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Louisville to Key West

Cheapest flights from Louisville to Key West
Explore the most affordable flight options available from Louisville to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:32 amSDF - EYW
1 stop8h 46mAmerican Airlines
Sat 11/15:47 pmEYW - SDF
1 stop6h 48mAmerican Airlines
Deal found 7/27$283
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2310:45 amSDF - EYW
1 stop6h 27mDelta
Tue 8/266:20 pmEYW - SDF
1 stop5h 36mDelta
Deal found 7/27$316
This Mytrip deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:45 amSDF - EYW
1 stop6h 48mMultiple Airlines
Tue 11/49:47 amEYW - SDF
2 stops24h 12mMultiple Airlines
Deal found 7/27$320
This Mytrip deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:13 pmSDF - EYW
1 stop12h 49mAllegiant Air
Sun 9/2112:29 pmEYW - SDF
2 stops21h 58mAllegiant Air
Deal found 7/28$324
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:30 amSDF - EYW
1 stop6h 42mUnited Airlines
Wed 7/302:12 pmEYW - SDF
1 stop8h 46mUnited Airlines
Deal found 7/28$399

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Louisville to Key West that are best for you.

Fly from

Louisville

Fly to

Key West

Route

Depart

Return

Price

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sat 8/30

7:46 am-3:19 pm

1 stop7h 33m

Key West

Wed 9/3

7:31 pm-11:58 pm

1 stop4h 27m

$283

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sat 8/23

10:45 am-5:12 pm

1 stop6h 27m

Key West

Tue 8/26

6:20 pm-11:56 pm

1 stop5h 36m

$316

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Fri 9/19

8:13 pm-9:02 am

1 stop12h 49m

Key West

Sun 9/21

12:29 pm-10:27 am

2 stops21h 58m

$324

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Mon 8/11

12:16 pm-9:22 am

2 stops21h 06m

Key West

Thu 8/14

3:00 pm-8:31 pm

1 stop5h 31m

$370

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Thu 10/23

12:54 pm-8:06 pm

1 stop7h 12m

$197

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Thu 10/23

6:45 am-4:27 pm

2 stops9h 42m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Louisville to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Key West

How far ahead should I book a flight from Louisville to Key West?

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Key West. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Louisville to Key West, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Louisville to Key West?

Currently, August is the cheapest month in which you can book a flight from Louisville to Key West (average of $328). Flying from Louisville to Key West in March is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SDF to EYW?

Find hourly flight availability from Louisville to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

One of the essential ways to save on airfare from Louisville to Key West is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 17% on airfare.

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated July 29, 2025.
See what other customers who have flown with Delta, American Airlines, and Allegiant Air from Louisville to Key West have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Louisville to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Louisville to Key West round-trip?

    Cheapflights users have booked flights from Louisville to Key West round-trip from $283. Other airlines that can offer you cheap pricing are Delta, from $316, and Allegiant Air, from $324. American Airlines is 31% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Louisville to Key West that include hotel bookings?

    Yes. In addition to deals on Louisville to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Key West.

  • Can I find deals for business class flights from Louisville to Key West?

    Yes. Cheapflights offers flight deals from Louisville to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Louisville to Key West?

    Currently, August is the cheapest month in which you can book a flight from Louisville to Key West (average of $328). Flying from Louisville to Key West in March is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from Louisville to Key West

Discover the top 3 airlines that operate flights from Louisville to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$524FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$400FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$419FlexibilityNo cancel feeOn-time71%

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