San Juan

$115+ Cheap flights from Kentucky to San Juan

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJU
Jun 14 — Jun 211
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Cheap flight deals from Kentucky to San Juan

Cheapest flights from Kentucky to San Juan
Explore the most affordable flight options available from Kentucky to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.

This Priceline deal was found by Cheapflights users on 5/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:02 am
CVG
-
SJU
1 stop13h 39m
Frontier
Wed 8/196:00 am
SJU
-
CVG
1 stop17h 46m
Frontier
Deal found 5/12$236
This Priceline deal was found by Cheapflights users on 5/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:09 pm
BNA
-
SJU
1 stop13h 48m
Frontier
Wed 8/196:00 am
SJU
-
BNA
1 stop11h 20m
Frontier
Deal found 5/10$236
This Priceline deal was found by Cheapflights users on 5/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:09 pm
BNA
-
SJU
1 stop8h 02m
Frontier
Thu 8/136:31 pm
SJU
-
BNA
1 stop22h 52m
Frontier
Deal found 5/10$240
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/1011:02 am
CVG
-
SJU
1 stop13h 39m
Frontier
Mon 8/174:05 pm
SJU
-
CVG
1 stop7h 36m
Frontier
Deal found 5/13$242
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Thu 8/139:30 pm
CVG
-
SJU
1 stop10h 27m
Frontier
Wed 8/196:00 am
SJU
-
CVG
1 stop17h 46m
Frontier
Deal found 5/13$245
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Wed 8/199:30 pm
CVG
-
SJU
1 stop10h 39m
Frontier
Sun 8/234:05 pm
SJU
-
CVG
1 stop7h 41m
Frontier
Deal found 5/11$253
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 8/2911:02 am
CVG
-
SJU
1 stop13h 21m
Frontier
Sat 9/54:05 pm
SJU
-
CVG
1 stop7h 41m
Frontier
Deal found 5/12$255
This Priceline deal was found by Cheapflights users on 5/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:02 am
CVG
-
SJU
1 stop13h 21m
Frontier
Sat 9/55:01 pm
SJU
-
CVG
1 stop17h 06m
Frontier
Deal found 5/11$256
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Wed 9/29:30 pm
CVG
-
SJU
1 stop15h 46m
Frontier
Mon 9/79:24 am
SJU
-
CVG
1 stop14h 22m
Frontier
Deal found 5/11$258
This Priceline deal was found by Cheapflights users on 5/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:09 pm
BNA
-
SJU
1 stop19h 11m
Frontier
Sat 8/229:24 am
SJU
-
BNA
1 stop7h 56m
Frontier
Deal found 5/10$258
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/3111:02 am
CVG
-
SJU
1 stop13h 21m
Frontier
Fri 9/46:00 am
SJU
-
CVG
1 stop14h 35m
Frontier
Deal found 5/11$260
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Thu 8/2011:02 am
CVG
-
SJU
1 stop13h 21m
Frontier
Tue 8/255:01 pm
SJU
-
CVG
1 stop17h 06m
Frontier
Deal found 5/12$261

Find flight deals from Kentucky to San Juan

Keep the following information in mind while searching for Kentucky to San Juan flight deals. Data was last updated May 15, 2026.

Round-trip from

$236
(Priceline)

One-way from

$115
(Super.com)

Popular in

December

Cheapest in

October

Average price

$479
From Kentucky to San Juan
One-way flight from Kentucky to San Juan
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to San Juan 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 May 15, 2026.
Use the filters below to find and compare flights from Kentucky to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/18

6:00 am-11:48 am

1 stop5h 48m

San Juan Luis Munoz Marin Intl

Fri 10/2

5:41 pm-11:59 pm

1 stop6h 18m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/11

6:00 am-1:16 pm

1 stop7h 16m

San Juan Luis Munoz Marin Intl

Fri 9/18

12:58 pm-10:36 pm

1 stop9h 38m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/14

6:00 am-11:48 am

1 stop5h 48m

San Juan Luis Munoz Marin Intl

Thu 9/17

5:41 pm-11:59 pm

1 stop6h 18m

$316

NashvilleSan Juan

BNA - SJU

BNASJU

Nashville Intl

Fri 8/21

12:25 pm-10:50 pm

2 stops9h 25m

San Juan Luis Munoz Marin Intl

Sun 8/23

9:25 pm-9:25 am

1 stop13h 00m

$326

LexingtonSan Juan

LEX - SJU

LEXSJU

Lexington Blue Grass

Tue 9/1

7:00 am-8:38 pm

2 stops13h 38m

San Juan Luis Munoz Marin Intl

Wed 9/9

3:56 pm-12:09 am

1 stop8h 13m

$336

NashvilleSan Juan

BNA - SJU

BNASJU

Nashville Intl

Thu 8/27

8:55 pm-9:10 am

1 stop11h 15m

San Juan Luis Munoz Marin Intl

Mon 8/31

11:35 am-5:45 pm

2 stops7h 10m

$336

NashvilleSan Juan

BNA - SJU

BNASJU

Nashville Intl

Wed 7/22

5:15 pm-11:45 pm

1 stop5h 30m

San Juan Luis Munoz Marin Intl

Thu 7/30

10:20 pm-8:35 am

1 stop11h 15m

$355

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 7/21

6:00 am-11:46 am

1 stop5h 46m

San Juan Luis Munoz Marin Intl

Sat 8/8

5:49 pm-12:09 am

1 stop6h 20m

$366

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/18

6:00 am-11:48 am

1 stop5h 48m

San Juan Luis Munoz Marin Intl

Sat 9/26

7:30 am-1:48 pm

1 stop6h 18m

$366

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/11

2:15 pm-11:05 pm

2 stops8h 50m

San Juan Luis Munoz Marin Intl

Fri 9/18

6:00 am-1:35 pm

1 stop7h 35m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Kentucky to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Kentucky 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 Kentucky to San Juan

How far ahead should I book a flight from Kentucky to San Juan?

The best time to book flights from Kentucky to San Juan is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Kentucky to San Juan?

Currently, January is the cheapest month in which you can book a flight from Kentucky to San Juan (average of $113). Flying from Kentucky to San Juan in March is currently the most expensive (average of $225). 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.

How much does it cost to fly round-trip from Kentucky to San Juan?

Related info for your journey

Find useful and relevant information for your journey from Kentucky to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Kentucky to San Juan?

    Delta, United Airlines, and Southwest can get you from Kentucky to San Juan in just under 7h 16m. Your travel time can differ by up to 6h 22m. The distance between Kentucky and San Juan is about 1807 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Kentucky to San Juan one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $113. However, be on the lookout for offers from American Airlines and Southwest, as they are both options that can get you from Kentucky to San Juan for a low price.

  • What are the most popular routes from Kentucky to San Juan?

  • Can I find deals for flights from Kentucky to San Juan that include hotel bookings?

    Yes. In addition to deals on Kentucky to San Juan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kentucky to San Juan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kentucky to San Juan.

  • Can I find deals for business class flights from Kentucky to San Juan?

    Yes. Cheapflights offers flight deals from Kentucky to San Juan 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 Kentucky to San Juan?

    Currently, January is the cheapest month in which you can book a flight from Kentucky to San Juan (average of $113). Flying from Kentucky to San Juan in March is currently the most expensive (average of $225). 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 Kentucky to San Juan

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

Top 5 airlines flying from Kentucky to San Juan

Discover the top 5 airlines that operate flights from Kentucky to San Juan. 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 May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$176Average$393FlexibilityNo cancel feeOn-time65%
DeltaCheapest$198Average$482FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$225Average$425FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$238Average$472FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$259Average$492FlexibilityNo cancel feeOn-time69%

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