Caribbean Islands

$123+ Cheap flights from Louisville (SDF) to Caribbean Islands

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJU
Mar 4 — Mar 111
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Cheap flight deals from Louisville to Caribbean Islands

Cheapest flights from Louisville to Caribbean Islands
Explore the most affordable flight options available from Louisville to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.

This Orbitz deal was found by Cheapflights users on 1/31. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:19 pm
SDF
-
SJU
1 stop8h 50m
Spirit Airlines
Mon 3/95:00 am
SJU
-
SDF
1 stop7h 21m
Spirit Airlines
Deal found 1/31$221
This Delta deal was found by Cheapflights users on 1/31. 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 2/243:33 pm
SDF
-
SJU
1 stop7h 25m
Delta
Wed 3/46:15 am
SJU
-
SDF
1 stop6h 12m
Delta
Deal found 1/31$246
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 2/223:33 pm
SDF
-
STX
1 stop23h 07m
Spirit Airlines
Fri 2/274:37 pm
STX
-
SDF
1 stop19h 28m
Spirit Airlines
Deal found 2/1$260
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/712:00 pm
SDF
-
SJU
1 stop10h 13m
Multiple Airlines
Wed 3/187:54 pm
SJU
-
SDF
1 stop18h 39m
Multiple Airlines
Deal found 2/1$272
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/41:19 pm
SDF
-
SJU
1 stop8h 50m
Spirit Airlines
Mon 3/95:00 am
SJU
-
SDF
1 stop7h 21m
Spirit Airlines
Deal found 2/1$275
This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Mon 3/169:13 pm
SDF
-
SJU
1 stop14h 36m
Multiple Airlines
Wed 3/187:54 pm
SJU
-
SDF
1 stop18h 39m
Multiple Airlines
Deal found 1/31$280
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 4/712:42 pm
SDF
-
STT
1 stop26h 46m
Spirit Airlines
Mon 4/134:35 pm
STT
-
SDF
1 stop19h 12m
Spirit Airlines
Deal found 2/1$281
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 4/107:48 pm
SDF
-
SJU
1 stop16h 45m
Multiple Airlines
Mon 4/2010:55 am
SJU
-
SDF
2 stops27h 43m
Multiple Airlines
Deal found 1/31$282
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/712:00 pm
SDF
-
STT
1 stop26h 34m
Spirit Airlines
Wed 3/114:40 pm
STT
-
SDF
1 stop21h 53m
Spirit Airlines
Deal found 2/1$282
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:50 am
SDF
-
SJU
2 stops11h 45m
Southwest
Tue 3/105:15 am
SJU
-
SDF
2 stops10h 40m
Southwest
Deal found 2/1$286
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/712:00 pm
SDF
-
SJU
1 stop10h 13m
Multiple Airlines
Sun 3/151:45 am
SJU
-
SDF
1 stop9h 29m
Multiple Airlines
Deal found 2/1$289
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:19 pm
SDF
-
SJU
1 stop8h 50m
Spirit Airlines
Wed 3/46:00 am
SJU
-
SDF
1 stop7h 21m
Spirit Airlines
Deal found 2/1$290

Find flight deals from Louisville to Caribbean Islands

Keep the following information in mind while searching for Louisville to Caribbean Islands flight deals. Data was last updated February 2, 2026.

Round-trip from

$221
(Orbitz)

One-way from

$123
(Delta)

Popular in

December

Cheapest in

September

Average price

$428
From Louisville Intl to Caribbean Islands
One-way flight from Louisville Intl to Caribbean Islands
Highest demand for flights based on searches. 5% potential increase in price ($23 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Caribbean Islands 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 February 2, 2026.
Use the filters below to find and compare flights from Louisville to Caribbean Islands that are best for you.

Fly from

Louisville

Fly to

Caribbean Islands

Route

Depart

Return

Price

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

1:50 pm-12:36 am

1 stop9h 46m

San Juan Luis Munoz Marin Intl

Wed 3/4

8:05 am-2:47 pm

1 stop7h 42m

$246

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 3/9

5:35 pm-11:15 pm

1 stop5h 40m

San Juan Luis Munoz Marin Intl

Fri 3/13

6:15 am-4:30 pm

1 stop10h 15m

$246

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

3:33 pm-11:58 pm

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:15 am-11:27 am

1 stop6h 12m

$246

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 3/10

5:35 pm-11:15 pm

1 stop5h 40m

San Juan Luis Munoz Marin Intl

Tue 3/17

7:30 am-2:00 pm

1 stop6h 30m

$246

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 3/10

10:13 am-8:18 pm

1 stop10h 05m

San Juan Luis Munoz Marin Intl

Fri 3/13

6:15 am-4:30 pm

1 stop10h 15m

$246

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 3/3

12:12 pm-11:58 pm

1 stop10h 46m

San Juan Luis Munoz Marin Intl

Tue 3/10

6:15 am-2:00 pm

1 stop7h 45m

$246

LouisvilleSaint Thomas Island

SDF - STT

SDFSTT

Louisville Intl

Tue 4/7

12:42 pm-3:28 pm

1 stop26h 46m

Saint Thomas Island Cyril E King

Mon 4/13

4:35 pm-11:47 am

1 stop19h 12m

$281

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 3/4

5:33 am-1:01 pm

1 stop6h 28m

San Juan Luis Munoz Marin Intl

Tue 3/17

7:30 am-2:00 pm

1 stop6h 30m

$286

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 3/7

12:00 pm-11:13 pm

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Sun 3/15

1:45 am-11:14 am

1 stop9h 29m

$289

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 3/7

12:00 pm-11:13 pm

1 stop10h 13m

San Juan Luis Munoz Marin Intl

Thu 3/12

1:45 am-11:14 am

1 stop9h 29m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 49 results
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Best time to book a flight from Louisville to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands 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 Caribbean Islands

What is the cheapest month to book a flight from Louisville to Caribbean Islands?

Currently, January is the cheapest month in which you can book a flight from Louisville to Caribbean Islands (average of $143). Flying from Louisville to Caribbean Islands in June is currently the most expensive (average of $252). 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.

Reviews of airlines servicing Caribbean Islands

Get insights into the airlines that provide service to Caribbean Islands. 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 Caribbean Islands. Reviews last updated February 2, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Louisville to Caribbean Islands by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Louisville to Caribbean Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Louisville to Caribbean Islands?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to Caribbean Islands. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

  • How long is the flight from Louisville to Caribbean Islands?

    There are many flights that can get you from Louisville to Caribbean Islands in 6h 40m. Fly via Delta, American Airlines, or Spirit Airlines to get the fastest option. Louisville and Caribbean Islands are separated by a distance of 1807 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Louisville to Caribbean Islands one-way?

    The cheapest airlines for a one-way flight from Louisville to Caribbean Islands are Spirit Airlines ($102), American Airlines ($109), and Delta ($112).

  • What are the most popular routes from Louisville to Caribbean Islands?

  • Can I find deals for flights from Louisville to Caribbean Islands that include hotel bookings?

    Yes. In addition to deals on Louisville to Caribbean Islands flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Caribbean Islands?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Caribbean Islands.

  • Can I find deals for business class flights from Louisville to Caribbean Islands?

    Yes. Cheapflights offers flight deals from Louisville to Caribbean Islands 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 Caribbean Islands?

    Currently, January is the cheapest month in which you can book a flight from Louisville to Caribbean Islands (average of $143). Flying from Louisville to Caribbean Islands in June is currently the most expensive (average of $252). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisville to Caribbean Islands

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Louisville to Caribbean Islands

Discover the top 5 airlines that operate flights from Louisville to Caribbean Islands. 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 February 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$152Average$380FlexibilityNo cancel feeOn-time65%
DeltaCheapest$205Average$557FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$225Average$662FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$240Average$595FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$542FlexibilityNo cancel feeOn-time69%

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