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 41% 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?

Breeze Airways and Delta 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.

$117 Cheap Flights from Louisville to Key West in 2026

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Find the cheapest flights from Louisville to Key West

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:19 pm - 9:06 am

SDF

EYW

19h 47m

1 stop

2:25 pm - 2:38 pm

EYW

SDF

24h 13m

1 stop

$249Multiple Airlines

Wed, Mar 4 - Mon, Mar 9

2:26 pm - 10:24 am

SDF

EYW

19h 58m

1 stop

2:25 pm - 11:05 am

EYW

SDF

20h 40m

1 stop

$259Multiple Airlines

Sun, Feb 15 - Fri, Feb 20

1:19 pm - 9:06 am

SDF

EYW

19h 47m

1 stop

1:06 pm - 2:38 pm

EYW

SDF

25h 32m

2 stops

$270Multiple Airlines

Wed, Mar 4 - Mon, Mar 9

2:26 pm - 10:24 am

SDF

EYW

19h 58m

1 stop

9:49 am - 2:38 pm

EYW

SDF

28h 49m

2 stops

$273Multiple Airlines

Sun, Feb 15 - Mon, Feb 23

2:26 pm - 10:24 am

SDF

EYW

19h 58m

1 stop

1:06 pm - 11:05 am

EYW

SDF

21h 59m

2 stops

$276Multiple Airlines

Sun, Feb 15 - Fri, Feb 20

6:06 am - 11:24 am

SDF

EYW

5h 18m

1 stop

4:20 pm - 10:08 pm

EYW

SDF

5h 48m

1 stop

$279American Airlines

Sat, May 9 - Wed, May 13

9:27 pm - 2:47 pm

SDF

EYW

17h 20m

1 stop

1:06 pm - 11:05 am

EYW

SDF

21h 59m

2 stops

$286Multiple Airlines

Sun, Feb 22 - Fri, Feb 27

7:35 am - 6:52 pm

SDF

EYW

11h 17m

2 stops

7:33 pm - 11:59 pm

EYW

SDF

4h 26m

1 stop

$304American Airlines

Fri, Jul 3 - Thu, Jul 9

9:06 pm - 2:53 pm

SDF

EYW

17h 47m

1 stop

2:25 pm - 2:38 pm

EYW

SDF

24h 13m

1 stop

$309Multiple Airlines

Thu, Mar 5 - Mon, Mar 9

3:33 pm - 12:26 pm

SDF

EYW

20h 53m

2 stops

2:25 pm - 2:38 pm

EYW

SDF

24h 13m

1 stop

$312Multiple Airlines

Thu, Mar 5 - Mon, Mar 9

American Airlines flights from Louisville to Key West

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

American Airlines

May 9

SDF6:06 amLouisville Intl

5h 18m

1 stop

EYW11:24 amKey West

May 13

EYW4:20 pmKey West

5h 48m

1 stop

SDF10:08 pmLouisville Intl

$279

American Airlines

Jul 3

SDF7:35 amLouisville Intl

11h 17m

2 stops

EYW6:52 pmKey West

Jul 9

EYW7:33 pmKey West

4h 26m

1 stop

SDF11:59 pmLouisville Intl

$304

American Airlines

May 9

SDF6:06 amLouisville Intl

5h 18m

1 stop

EYW11:24 amKey West

May 13

EYW6:45 amKey West

9h 12m

2 stops

SDF3:57 pmLouisville Intl

$339

Allegiant Air flights from Louisville to Key West

Our best Allegiant Air deals on Louisville to Key West flight tickets

Allegiant Air

Feb 6

SDF10:57 amLouisville Intl

25h 14m

1 stop

EYW12:11 pmKey West

Feb 8

EYW10:27 pmKey West

11h 40m

1 stop

SDF10:07 amLouisville Intl

$453

Allegiant Air

Mar 28

SDF3:32 pmLouisville Intl

24h 14m

1 stop

EYW3:46 pmKey West

Apr 4

EYW3:28 pmKey West

17h 37m

1 stop

SDF9:05 amLouisville Intl

$457

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Wed 3/4

1:19 pm-9:06 am

1 stop19h 47m

Key West

Mon 3/9

2:25 pm-2:38 pm

1 stop24h 13m

$249

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/15

2:26 pm-10:24 am

1 stop19h 58m

Key West

Fri 2/20

2:25 pm-11:05 am

1 stop20h 40m

$259

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Wed 3/4

1:19 pm-9:06 am

1 stop19h 47m

Key West

Mon 3/9

1:06 pm-2:38 pm

2 stops25h 32m

$270

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/15

2:26 pm-10:24 am

1 stop19h 58m

Key West

Mon 2/23

9:49 am-2:38 pm

2 stops28h 49m

$273

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/15

2:26 pm-10:24 am

1 stop19h 58m

Key West

Fri 2/20

1:06 pm-11:05 am

2 stops21h 59m

$276

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sat 5/9

6:06 am-11:24 am

1 stop5h 18m

Key West

Wed 5/13

4:20 pm-10:08 pm

1 stop5h 48m

$279

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Sun 2/22

9:27 pm-2:47 pm

1 stop17h 20m

Key West

Fri 2/27

1:06 pm-11:05 am

2 stops21h 59m

$286

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Fri 7/3

7:35 am-6:52 pm

2 stops11h 17m

Key West

Thu 7/9

7:33 pm-11:59 pm

1 stop4h 26m

$304

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Thu 3/5

9:06 pm-2:53 pm

1 stop17h 47m

Key West

Mon 3/9

2:25 pm-2:38 pm

1 stop24h 13m

$309

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

Thu 3/5

3:33 pm-12:26 pm

2 stops20h 53m

Key West

Mon 3/9

2:25 pm-2:38 pm

1 stop24h 13m

$312

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 $338. If you are unable to visit Key West during the month of August, then departing from Louisville during the month February is also very affordable. Most momondo users find prices during this month for around $349.

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 $410 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	6h 32m
Direct flights	None

The fastest flight from Louisville to Key West takes 6h 32m

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 6h 32m.
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 (60% of total bookings). The next most popular airlines are Delta (36%) 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 9,212 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,201 reviews	Search American Airlines flights
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 8,124 reviews	Search Delta 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.