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$135+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — EYW
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Key West are usually found in August or January, 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 September 11, 2025.

Round-trip from

$221
(Kiwi.com)

One-way from

$135
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$398
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. 7% potential increase in price ($31 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 September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:15 amSDF - EYW
1 stop25h 00mMultiple Airlines
Fri 10/173:08 pmEYW - SDF
1 stop17h 27mMultiple Airlines
Deal found 9/9$221
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:41 pmSDF - EYW
1 stop11h 21mAllegiant Air
Fri 10/173:08 pmEYW - SDF
1 stop17h 27mAllegiant Air
Deal found 9/9$244
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:31 pmSDF - EYW
2 stops16h 48mMultiple Airlines
Fri 10/173:08 pmEYW - SDF
1 stop17h 27mMultiple Airlines
Deal found 9/9$257
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:15 amSDF - EYW
1 stop25h 00mMultiple Airlines
Thu 10/168:55 amEYW - SDF
1 stop13h 52mMultiple Airlines
Deal found 9/9$266
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:12 pmSDF - EYW
1 stop11h 49mMultiple Airlines
Mon 11/102:25 pmEYW - SDF
1 stop19h 34mMultiple Airlines
Deal found 9/10$267
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:40 pmSDF - EYW
1 stop11h 22mMultiple Airlines
Tue 10/2811:45 amEYW - SDF
2 stops28h 51mMultiple Airlines
Deal found 9/9$277
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 10/1410:41 amSDF - EYW
1 stop6h 31mDelta
Tue 10/216:17 pmEYW - SDF
1 stop5h 44mDelta
Deal found 9/9$283
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/258:22 amSDF - EYW
1 stop6h 04mAmerican Airlines
Sat 11/17:52 pmEYW - SDF
1 stop4h 44mAmerican Airlines
Deal found 9/9$284

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 September 11, 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

Fri 11/7

10:55 am-10:07 am

2 stops23h 12m

Key West

Mon 11/10

2:25 pm-9:59 am

1 stop19h 34m

$278

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sat 11/8

3:12 pm-8:06 pm

1 stop4h 54m

Key West

Wed 11/12

6:18 pm-12:06 am

1 stop5h 48m

$283

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Tue 10/14

8:17 am-1:02 pm

1 stop4h 45m

Key West

Wed 10/22

1:57 pm-7:11 pm

1 stop5h 14m

$283

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sat 10/25

8:22 am-2:26 pm

1 stop6h 04m

Key West

Sat 11/1

7:52 pm-12:36 am

1 stop4h 44m

$284

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Tue 12/9

4:18 pm-9:46 pm

1 stop5h 28m

Key West

Sat 12/13

11:35 am-9:47 pm

2 stops10h 12m

$288

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Thu 10/30

12:54 pm-8:06 pm

1 stop7h 12m

Key West

Tue 11/4

6:17 pm-10:34 pm

1 stop4h 17m

$311

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Wed 10/15

8:18 am-1:11 pm

1 stop4h 53m

Key West

Mon 10/20

7:52 pm-12:36 am

1 stop4h 44m

$311

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Tue 10/14

3:11 pm-8:06 pm

1 stop4h 55m

Key West

Mon 10/20

6:17 pm-12:04 am

1 stop5h 47m

$311

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Thu 10/30

7:32 am-4:13 pm

1 stop8h 41m

Key West

Tue 11/4

1:23 pm-9:40 pm

2 stops8h 17m

$316

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Thu 11/6

10:55 am-4:55 pm

2 stops30h 00m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

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 August 29, 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 $491). 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 September 11, 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 September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines 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
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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.

  • How long is the flight from Louisville to Key West?

    Airlines like Delta and American Airlines fly from Louisville to Key West in about 4h 54m. The time it takes to get you to your destination can typically vary by up to 1h 10m. The distance between Louisville and Key West is about 969 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $258. Other airlines that can offer you cheap pricing are United Airlines, from $258, and American Airlines, from $258. Delta is 38% 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 $491). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$448FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$405FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$432FlexibilityNo cancel feeOn-time71%

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