What airlines fly to Key West?

American Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Key West from Louisville according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 4 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Louisville Intl to Key West?

Spirit Airlines and Breeze Airways are the most popular carriers operating from Louisville Intl to Key West

When did momondo last update prices for flights from Louisville Intl Airport to Key West Airport?

Prices for flights from Louisville Intl Airport to Key West Airport were last updated today.

How many operators does momondo search for flights from Louisville Intl Airport to Key West Airport?

As of January 2026, there are 3 operators available to choose from for flights from Louisville Intl Airport to Key West Airport.

How old do you have to be to fly from Louisville Intl Airport to Key West Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Key West Airport.

What documentation or ID do you need to fly to Key West Airport?

The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$123 Cheap Flights from Louisville to Key West in 2026

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Find the cheapest flights from Louisville to Key West

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:12 pm - 12:26 pm

SDF

EYW

15h 14m1 stop

9:46 am - 12:21 pm

EYW

SDF

26h 35m1 stop

$220Multiple Airlines

Sun, Feb 22 - Thu, Feb 26

9:27 pm - 2:47 pm

SDF

EYW

17h 20m1 stop

9:46 am - 12:21 pm

EYW

SDF

26h 35m1 stop

$232Multiple Airlines

Sun, Feb 22 - Thu, Feb 26

9:27 pm - 9:09 am

SDF

EYW

11h 42m1 stop

9:46 am - 12:21 pm

EYW

SDF

26h 35m1 stop

$235Multiple Airlines

Sun, Feb 15 - Thu, Feb 19

2:26 pm - 10:24 am

SDF

EYW

19h 58m1 stop

9:46 am - 12:21 pm

EYW

SDF

26h 35m1 stop

$237Multiple Airlines

Sun, Feb 15 - Thu, Feb 19

9:21 pm - 9:09 am

SDF

EYW

11h 48m1 stop

2:25 pm - 8:40 am

EYW

SDF

18h 15m1 stop

$249Multiple Airlines

Sun, Mar 1 - Thu, Mar 5

9:21 pm - 9:09 am

SDF

EYW

11h 48m1 stop

2:25 pm - 8:40 am

EYW

SDF

18h 15m1 stop

$250Multiple Airlines

Sun, Mar 1 - Thu, Mar 5

2:26 pm - 10:24 am

SDF

EYW

19h 58m1 stop

2:25 pm - 2:38 pm

EYW

SDF

24h 13m1 stop

$251Multiple Airlines

Sun, Feb 15 - Mon, Feb 23

3:36 pm - 10:09 am

SDF

EYW

18h 33m2 stops

10:27 pm - 10:07 am

EYW

SDF

11h 40m1 stop

$254Multiple Airlines

Tue, Jan 27 - Thu, Jan 29

3:36 pm - 10:09 am

SDF

EYW

18h 33m2 stops

2:25 pm - 2:41 pm

EYW

SDF

24h 16m1 stop

$256Multiple Airlines

Tue, Jan 27 - Mon, Feb 2

3:36 pm - 10:09 am

SDF

EYW

18h 33m2 stops

2:25 pm - 2:41 pm

EYW

SDF

24h 16m1 stop

$257Multiple Airlines

Tue, Jan 27 - Mon, Feb 2

Spirit Airlines flights from Louisville to Key West

Our best Spirit Airlines deals on Louisville to Key West flight tickets

Spirit Airlines

Jan 29

SDF3:36 pmLouisville Intl

21h 54m

1 stop

EYW1:30 pmKey West

Feb 2

EYW2:25 pmKey West

24h 16m

1 stop

SDF2:41 pmLouisville Intl

$266

Find similar

Spirit Airlines

Jan 29

SDF3:36 pmLouisville Intl

21h 54m

1 stop

EYW1:30 pmKey West

Feb 2

EYW2:25 pmKey West

24h 16m

1 stop

SDF2:41 pmLouisville Intl

$267

Find similar

Spirit Airlines

Jan 21

SDF1:55 pmLouisville Intl

22h 01m

3 stops

EYW11:56 amKey West

Jan 25

EYW12:51 pmKey West

24h 09m

3 stops

SDF1:00 pmLouisville Intl

$416

Find similar

American Airlines flights from Louisville to Key West

Our best American Airlines deals on Louisville to Key West flight tickets

American Airlines

Feb 6

SDF12:00 pmLouisville Intl

4h 49m

1 stop

EYW4:49 pmKey West

Feb 9

EYW4:37 pmKey West

7h 22m

1 stop

SDF11:59 pmLouisville Intl

$279

Find similar

American Airlines

Feb 6

SDF1:32 pmLouisville Intl

8h 15m

2 stops

EYW9:47 pmKey West

Feb 9

EYW6:06 amKey West

5h 09m

1 stop

SDF11:15 amLouisville Intl

$284

Find similar

American Airlines

Jan 24

SDF1:15 pmLouisville Intl

4h 51m

1 stop

EYW6:06 pmKey West

Jan 27

EYW7:08 amKey West

7h 40m

1 stop

SDF2:48 pmLouisville Intl

$294

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/22

9:12 pm-12:26 pm

1 stop15h 14m

Key West

Thu 2/26

9:46 am-12:21 pm

1 stop26h 35m

$220

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/22

9:27 pm-2:47 pm

1 stop17h 20m

Key West

Thu 2/26

9:46 am-12:21 pm

1 stop26h 35m

$232

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/15

9:27 pm-9:09 am

1 stop11h 42m

Key West

Thu 2/19

9:46 am-12:21 pm

1 stop26h 35m

$235

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/15

2:26 pm-10:24 am

1 stop19h 58m

Key West

Thu 2/19

9:46 am-12:21 pm

1 stop26h 35m

$237

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 3/1

9:21 pm-9:09 am

1 stop11h 48m

Key West

Thu 3/5

2:25 pm-8:40 am

1 stop18h 15m

$249

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 3/1

9:21 pm-9:09 am

1 stop11h 48m

Key West

Thu 3/5

2:25 pm-8:40 am

1 stop18h 15m

$250

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/15

2:26 pm-10:24 am

1 stop19h 58m

Key West

Mon 2/23

2:25 pm-2:38 pm

1 stop24h 13m

$251

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Tue 1/27

3:36 pm-10:09 am

2 stops18h 33m

Key West

Thu 1/29

10:27 pm-10:07 am

1 stop11h 40m

$254

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Tue 1/27

3:36 pm-10:09 am

2 stops18h 33m

Key West

Mon 2/2

2:25 pm-2:41 pm

1 stop24h 16m

$256

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Tue 1/27

3:36 pm-10:09 am

2 stops18h 33m

Key West

Mon 2/2

2:25 pm-2:41 pm

1 stop24h 16m

$257

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from Louisville to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $331. If you are unable to visit Key West during the month of August, then departing from Louisville during the month January is also very affordable. Most momondo users find prices during this month for around $358.

How far in advance should I book a flight to Key West?

You are more likely to see cheaper flights to Key West from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $411 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Louisville for as low as $336 on momondo.

When to book flights from Louisville to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Key West according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Key West (SDF to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Key West

Fastest flight time	4h 08m
Direct flights	None

The fastest flight from Louisville to Key West takes 4h 08m

There are no direct flights from Louisville to Key West. There are no popular flight routes from Louisville to Key West.

Search flight deals

How far is Louisville Intl to Key West by plane?
Louisville Intl and Key West are 973.5 mi apart from one another. In terms of flight time, this usually takes a little over 4h 08m.
When did momondo last update prices for flights from Louisville Intl Airport to Key West Airport?
Prices for flights from Louisville Intl Airport to Key West Airport were last updated today.
How many operators does momondo search for flights from Louisville Intl Airport to Key West Airport?
As of January 2026, there are 3 operators available to choose from for flights from Louisville Intl Airport to Key West Airport.
How old do you have to be to fly from Louisville Intl Airport to Key West Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Louisville to Key West?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Key West is American Airlines (58% of total bookings). The next most popular airlines are Delta (38%) and United Airlines (4%).

Best airlines flying from Louisville to Key West

Compare and see reviews for airlines that fly from Louisville to Key West with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,138 reviews	Search United Airlines flights
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 8,022 reviews	Search Delta flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,088 reviews	Search American Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Key West?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Key West. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Louisville to Key West with flexible booking policies on momondo?

All flight searches from Louisville to Key West on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to Key West?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Louisville.

I’m not ready to book a flight from Louisville to Key West right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Key West, momondo offers a useful price alert feature which will track prices for flights to Key West from Louisville and alert you when they change.