What is the cheapest airline that flies from Louisville Intl to Caribbean Islands?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Louisville Intl to Caribbean Islands

What airlines fly to Caribbean Islands?

American Airlines, Delta and Frontier are the top three most popular airlines that fly to Caribbean Islands from Louisville according to our data. American Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Caribbean Islands. Keep in mind that there are 7 different airlines that fly to Caribbean Islands on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Caribbean Islands?

Prices for flights from Louisville Intl Airport to Caribbean Islands were last updated today.

How many operators does momondo search for flights from Louisville Intl Airport to Caribbean Islands?

As of March 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to Caribbean Islands.

How old do you have to be to fly from Louisville Intl Airport to Caribbean Islands?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Caribbean Islands.

What documentation or ID do you need to fly to Caribbean Islands?

The necessary travel and health documents for your Caribbean Islands trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$110 Cheap Flights from Louisville to Caribbean Islands in 2026

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Find the cheapest flights from Louisville to Caribbean Islands

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 4:33 pm

SDF

SJU

10h 33m

1 stop

5:43 pm - 12:25 am

SJU

SDF

6h 42m

1 stop

$279Delta

Tue, May 19 - Thu, May 28

5:50 am - 12:20 pm

SDF

STT

6h 30m

1 stop

2:10 pm - 10:22 pm

STT

SDF

8h 12m

1 stop

$300United Airlines

Sun, May 17 - Wed, May 20

9:43 am - 8:51 pm

SDF

SJU

11h 08m

1 stop

6:00 am - 10:31 pm

SJU

SDF

16h 31m

1 stop

$308American Airlines

Thu, Apr 9 - Thu, Apr 16

7:33 am - 6:10 pm

SDF

SJU

10h 37m

2 stops

11:59 pm - 10:11 am

SJU

SDF

10h 12m

1 stop

$316American Airlines

Sun, Apr 26 - Sat, May 2

4:37 pm - 11:13 pm

SDF

SJU

6h 36m

1 stop

7:30 am - 4:49 pm

SJU

SDF

9h 19m

1 stop

$319Delta

Thu, Apr 30 - Sat, May 2

7:15 am - 5:00 pm

SDF

STT

9h 45m

1 stop

2:10 pm - 10:22 pm

STT

SDF

8h 12m

1 stop

$319United Airlines

Sat, May 16 - Tue, May 19

7:52 pm - 1:15 pm

SDF

STT

17h 23m

2 stops

5:05 pm - 10:46 am

STT

SDF

17h 41m

2 stops

$320American Airlines

Thu, Apr 16 - Mon, Apr 20

6:00 am - 2:49 pm

SDF

STT

8h 49m

2 stops

12:25 pm - 11:30 pm

STT

SDF

11h 05m

2 stops

$325American Airlines

Wed, Apr 15 - Tue, Apr 21

3:33 pm - 11:49 am

SDF

SJU

20h 16m

1 stop

12:57 pm - 5:04 pm

SJU

SDF

28h 07m

1 stop

$349Spirit Airlines

Thu, Apr 9 - Thu, Apr 16

6:06 pm - 11:30 am

SDF

STT

17h 24m

1 stop

12:25 pm - 5:04 pm

STT

SDF

28h 39m

1 stop

$429Spirit Airlines

Sat, Apr 18 - Sun, Apr 26

Delta flights from Louisville to Caribbean Islands

Our best Delta deals on Louisville to Caribbean Islands flight tickets

Delta

May 19

SDF6:00 amLouisville Intl

10h 33m

1 stop

SJU4:33 pmSan Juan Luis Munoz Marin Intl

May 28

SJU5:43 pmSan Juan Luis Munoz Marin Intl

6h 42m

1 stop

SDF12:25 amLouisville Intl

$279

Delta

Apr 30

SDF4:37 pmLouisville Intl

6h 36m

1 stop

SJU11:13 pmSan Juan Luis Munoz Marin Intl

May 2

SJU7:30 amSan Juan Luis Munoz Marin Intl

9h 19m

1 stop

SDF4:49 pmLouisville Intl

$319

Delta

Apr 30

SDF4:37 pmLouisville Intl

6h 36m

1 stop

SJU11:13 pmSan Juan Luis Munoz Marin Intl

May 3

SJU5:34 pmSan Juan Luis Munoz Marin Intl

6h 25m

1 stop

SDF11:59 pmLouisville Intl

$356

Spirit Airlines flights from Louisville to Caribbean Islands

Our best Spirit Airlines deals on Louisville to Caribbean Islands flight tickets

Spirit Airlines

Apr 9

SDF3:33 pmLouisville Intl

27h 22m

1 stop

SJU6:55 pmSan Juan Luis Munoz Marin Intl

Apr 16

SJU12:57 pmSan Juan Luis Munoz Marin Intl

28h 07m

1 stop

SDF5:04 pmLouisville Intl

$349

Spirit Airlines

Apr 30

SDF6:06 pmLouisville Intl

25h 16m

1 stop

SJU7:22 pmSan Juan Luis Munoz Marin Intl

May 3

SJU12:57 pmSan Juan Luis Munoz Marin Intl

28h 07m

1 stop

SDF5:04 pmLouisville Intl

$369

Spirit Airlines

Mar 29

SDF3:33 pmLouisville Intl

20h 16m

1 stop

SJU11:49 amSan Juan Luis Munoz Marin Intl

Apr 5

SJU7:00 amSan Juan Luis Munoz Marin Intl

28h 14m

1 stop

SDF11:14 amLouisville Intl

$400

momondo Fare Finder

Use the filters below to find and compare flights from Louisville to Caribbean Islands that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 5/19

6:00 am-4:33 pm

1 stop10h 33m

San Juan Luis Munoz Marin Intl

Thu 5/28

5:43 pm-12:25 am

1 stop6h 42m

$279

Quickest round-trip

LouisvilleSaint Thomas Island

SDF - STT

SDFSTT

Louisville Intl

Sun 5/17

5:50 am-12:20 pm

1 stop6h 30m

Saint Thomas Island Cyril E King

Wed 5/20

2:10 pm-10:22 pm

1 stop8h 12m

$300

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/9

9:43 am-8:51 pm

1 stop11h 08m

San Juan Luis Munoz Marin Intl

Thu 4/16

6:00 am-10:31 pm

1 stop16h 31m

$308

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 4/26

7:33 am-6:10 pm

2 stops10h 37m

San Juan Luis Munoz Marin Intl

Sat 5/2

11:59 pm-10:11 am

1 stop10h 12m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/30

4:37 pm-11:13 pm

1 stop6h 36m

San Juan Luis Munoz Marin Intl

Sat 5/2

7:30 am-4:49 pm

1 stop9h 19m

$319

LouisvilleSaint Thomas Island

SDF - STT

SDFSTT

Louisville Intl

Sat 5/16

7:15 am-5:00 pm

1 stop9h 45m

Saint Thomas Island Cyril E King

Tue 5/19

2:10 pm-10:22 pm

1 stop8h 12m

$319

LouisvilleSaint Thomas Island

SDF - STT

SDFSTT

Louisville Intl

Thu 4/16

7:52 pm-1:15 pm

2 stops17h 23m

Saint Thomas Island Cyril E King

Mon 4/20

5:05 pm-10:46 am

2 stops17h 41m

$320

LouisvilleSaint Thomas Island

SDF - STT

SDFSTT

Louisville Intl

Wed 4/15

6:00 am-2:49 pm

2 stops8h 49m

Saint Thomas Island Cyril E King

Tue 4/21

12:25 pm-11:30 pm

2 stops11h 05m

$325

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/9

3:33 pm-11:49 am

1 stop20h 16m

San Juan Luis Munoz Marin Intl

Thu 4/16

12:57 pm-5:04 pm

1 stop28h 07m

$349

LouisvilleSaint Thomas Island

SDF - STT

SDFSTT

Louisville Intl

Sat 4/18

6:06 pm-11:30 am

1 stop17h 24m

Saint Thomas Island Cyril E King

Sun 4/26

12:25 pm-5:04 pm

1 stop28h 39m

$429

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 Caribbean Islands

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 Caribbean Islands?

The month of October is, on average, the cheapest month to fly to Caribbean Islands from Louisville, with most prices found around $310. The month of September is another great option to travel to Caribbean Islands, with average flight prices from Louisville averaging around $345.

How far in advance should I book a flight to Caribbean Islands?

You are more likely to see cheaper flights to Caribbean Islands from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean Islands for around $418 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean Islands from Louisville for as low as $365 on momondo.

Can stopping save me money on Louisville to Caribbean Islands flights?

No. A direct flight is the cheapest option for a flight between Louisville to Caribbean Islands.

Cheap Louisville to Caribbean Islands flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Caribbean Islands

Fastest flight time	5h 20m
Direct flights	None

The fastest flight from Louisville to Caribbean Islands takes 5h 20m

There are no direct flights from Louisville to Caribbean Islands. There are no popular flight routes from Louisville to Caribbean Islands.

Search flight deals

When did momondo last update prices for flights from Louisville Intl Airport to Caribbean Islands?
Prices for flights from Louisville Intl Airport to Caribbean Islands were last updated today.
How many operators does momondo search for flights from Louisville Intl Airport to Caribbean Islands?
As of March 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to Caribbean Islands.
How old do you have to be to fly from Louisville Intl Airport to Caribbean Islands?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Caribbean Islands.
What documentation or ID do you need to fly to Caribbean Islands?
The necessary travel and health documents for your Caribbean Islands trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Louisville to Caribbean Islands?
Based on momondo bookings for flights between Louisville and Caribbean Islands, the leading plane model is Boeing 737 MAX 8, making up 20.04% of the total bookings. Other popular models include Embraer 175 with 13.28%, Boeing 737-800 Passenger/BBJ2 (winglets) with 12.08%, and Airbus A320-100/200 with 9.48%.

Best airlines flying from Louisville to Caribbean Islands

Compare and see reviews for airlines that fly from Louisville to Caribbean Islands with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $205	Free Cancellation	Rating 7.9 8,319 reviews	Search Delta flights
Spirit Airlines	PriceFrom $209	Free Cancellation	Rating 6.3 8,538 reviews	Search Spirit Airlines flights
Southwest	PriceFrom $225	Free Cancellation	Rating 8.0 4,324 reviews	Search Southwest flights
American Airlines	PriceFrom $240	Free Cancellation	Rating 7.1 11,488 reviews	Search American Airlines flights
United Airlines	PriceFrom $246	Free Cancellation	Rating 7.4 9,462 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Caribbean Islands?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Louisville to Caribbean Islands. momondo saves you time and could save you money on your trip.

Can I find flights from Louisville to Caribbean Islands with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Caribbean Islands flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Caribbean Islands?

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 Caribbean Islands from Louisville.

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

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