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 is the most popular carrier 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.

$112 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

1:06 pm - 2:38 pm

EYW

SDF

25h 32m

2 stops

$271Multiple Airlines

mié., feb. 25 - lun., mar. 2

1:19 pm - 9:06 am

SDF

EYW

19h 47m

1 stop

9:46 am - 8:40 am

EYW

SDF

22h 54m

2 stops

$273Multiple Airlines

mié., mar. 4 - dom., mar. 8

1:19 pm - 9:06 am

SDF

EYW

19h 47m

1 stop

2:25 pm - 8:40 am

EYW

SDF

18h 15m

1 stop

$278Multiple Airlines

mié., mar. 4 - dom., mar. 8

7:30 am - 3:06 pm

SDF

EYW

7h 36m

1 stop

4:05 pm - 10:09 pm

EYW

SDF

6h 04m

1 stop

$279United Airlines

sáb., jul. 11 - jue., jul. 16

9:27 pm - 2:47 pm

SDF

EYW

17h 20m

1 stop

2:25 pm - 11:05 am

EYW

SDF

20h 40m

1 stop

$281Multiple Airlines

dom., feb. 22 - vie., feb. 27

9:27 pm - 9:09 am

SDF

EYW

11h 42m

1 stop

12:38 pm - 2:38 pm

EYW

SDF

26h 00m

2 stops

$282Multiple Airlines

dom., feb. 15 - mié., feb. 18

1:32 pm - 9:47 pm

SDF

EYW

8h 15m

2 stops

2:06 pm - 7:12 pm

EYW

SDF

5h 06m

1 stop

$284American Airlines

mié., feb. 4 - vie., feb. 13

9:14 pm - 2:43 pm

SDF

EYW

17h 29m

1 stop

9:46 am - 11:38 am

EYW

SDF

25h 52m

1 stop

$286Multiple Airlines

dom., abr. 12 - jue., abr. 16

9:27 pm - 2:47 pm

SDF

EYW

17h 20m

1 stop

1:06 pm - 11:05 am

EYW

SDF

21h 59m

2 stops

$287Multiple Airlines

dom., feb. 22 - vie., feb. 27

1:32 pm - 9:47 pm

SDF

EYW

8h 15m

2 stops

3:51 pm - 12:27 am

EYW

SDF

8h 36m

2 stops

$290American Airlines

mié., feb. 4 - vie., feb. 13

American Airlines flights from Louisville to Key West

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

American Airlines

Feb 4

SDF1:32 pmLouisville Intl

8h 15m

2 stops

EYW9:47 pmKey West

Feb 13

EYW2:06 pmKey West

5h 06m

1 stop

SDF7:12 pmLouisville Intl

$284

American Airlines

Feb 4

SDF1:32 pmLouisville Intl

8h 15m

2 stops

EYW9:47 pmKey West

Feb 13

EYW3:51 pmKey West

8h 36m

2 stops

SDF12:27 amLouisville Intl

$290

American Airlines

Feb 6

SDF3:33 pmLouisville Intl

8h 23m

2 stops

EYW11:56 pmKey West

Feb 9

EYW4:37 pmKey West

7h 22m

1 stop

SDF11:59 pmLouisville Intl

$294

United Airlines flights from Louisville to Key West

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

United Airlines

Jul 11

SDF7:30 amLouisville Intl

7h 36m

1 stop

EYW3:06 pmKey West

Jul 16

EYW4:05 pmKey West

6h 04m

1 stop

SDF10:09 pmLouisville Intl

$279

United Airlines

Jun 6

SDF9:00 amLouisville Intl

6h 06m

1 stop

EYW3:06 pmKey West

Jun 13

EYW4:05 pmKey West

6h 04m

1 stop

SDF10:09 pmLouisville Intl

$341

United Airlines

Jul 9

SDF7:30 amLouisville Intl

7h 36m

1 stop

EYW3:06 pmKey West

Jul 16

EYW4:05 pmKey West

6h 04m

1 stop

SDF10:09 pmLouisville Intl

$349

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

mié. 2/25

1:19 pm-9:06 am

1 stop19h 47m

Key West

lun. 3/2

1:06 pm-2:38 pm

2 stops25h 32m

$271

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

mié. 3/4

1:19 pm-9:06 am

1 stop19h 47m

Key West

dom. 3/8

9:46 am-8:40 am

2 stops22h 54m

$273

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

mié. 3/4

1:19 pm-9:06 am

1 stop19h 47m

Key West

dom. 3/8

2:25 pm-8:40 am

1 stop18h 15m

$278

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

sáb. 7/11

7:30 am-3:06 pm

1 stop7h 36m

Key West

jue. 7/16

4:05 pm-10:09 pm

1 stop6h 04m

$279

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

dom. 2/22

9:27 pm-2:47 pm

1 stop17h 20m

Key West

vie. 2/27

2:25 pm-11:05 am

1 stop20h 40m

$281

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

dom. 2/15

9:27 pm-9:09 am

1 stop11h 42m

Key West

mié. 2/18

12:38 pm-2:38 pm

2 stops26h 00m

$282

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

mié. 2/4

1:32 pm-9:47 pm

2 stops8h 15m

Key West

vie. 2/13

2:06 pm-7:12 pm

1 stop5h 06m

$284

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

dom. 4/12

9:14 pm-2:43 pm

1 stop17h 29m

Key West

jue. 4/16

9:46 am-11:38 am

1 stop25h 52m

$286

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

dom. 2/22

9:27 pm-2:47 pm

1 stop17h 20m

Key West

vie. 2/27

1:06 pm-11:05 am

2 stops21h 59m

$287

LouisvilleKey West

SDF - EYW

SDFEYW

Louisville Intl

mié. 2/4

1:32 pm-9:47 pm

2 stops8h 15m

Key West

vie. 2/13

3:51 pm-12:27 am

2 stops8h 36m

$290

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 $338. 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 $412 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 48m
Direct flights	None

The fastest flight from Louisville to Key West takes 6h 48m

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 48m.
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 (57% of total bookings). The next most popular airlines are Delta (39%) 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 9,156 reviews	Search United Airlines flights
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 8,040 reviews	Search Delta flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,119 reviews	Search American Airlines flights

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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.