HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$113+ Cheap flights from San Juan to Louisville (SDF)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SDF
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Juan to Louisville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Juan to Louisville

Cheapest flights from San Juan to Louisville
Explore the most affordable flight options available from San Juan to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:28 pmSJU - SDF
1 stop6h 31mSpirit Airlines
Thu 1/15:05 amSDF - SJU
1 stop16h 00mSpirit Airlines
Deal found 12/11$264
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:25 amSJU - SDF
2 stops10h 54mAmerican Airlines
Thu 1/15:00 amSDF - SJU
1 stop5h 39mAmerican Airlines
Deal found 12/10$270
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:28 pmSJU - SDF
1 stop6h 31mSpirit Airlines
Mon 1/55:05 amSDF - SJU
1 stop5h 53mSpirit Airlines
Deal found 12/11$306
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:14 pmSJU - SDF
2 stops33h 45mMultiple Airlines
Sun 1/45:05 amSDF - SJU
1 stop16h 00mMultiple Airlines
Deal found 12/10$325
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:35 pmSJU - SDF
1 stop15h 19mAmerican Airlines
Mon 1/57:00 amSDF - SJU
1 stop11h 43mAmerican Airlines
Deal found 12/11$332
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Tue 12/302:59 amSJU - SDF
2 stops22h 00mMultiple Airlines
Mon 1/58:53 pmSDF - SJU
1 stop25h 51mMultiple Airlines
Deal found 12/11$345
This OneTravel deal was found by Cheapflights users on 12/10. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:28 pmSJU - SDF
1 stop6h 31mSpirit Airlines
Tue 12/235:05 amSDF - SJU
1 stop5h 53mSpirit Airlines
Deal found 12/10$358
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:51 pmSJU - SDF
2 stops10h 05mAmerican Airlines
Tue 1/137:00 amSDF - SJU
1 stop8h 33mAmerican Airlines
Deal found 12/11$360
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:32 pmSJU - SDF
1 stop8h 26mDelta
Tue 1/136:00 amSDF - SJU
1 stop6h 05mDelta
Deal found 12/10$363
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:05 amSJU - SDF
2 stops12h 08mUnited Airlines
Mon 1/53:44 pmSDF - SJU
1 stop7h 52mUnited Airlines
Deal found 12/11$373

Find flight deals from San Juan to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Round-trip from

$225
(American Airlines)

One-way from

$113
(Southwest)

Popular in

June

Cheapest in

October

Average price

$349
From San Juan to Louisville Intl
Search Deals
One-way flight from San Juan to Louisville Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Louisville 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 December 12, 2025.
Use the filters below to find and compare flights from San Juan to Louisville that are best for you.

Fly from

San Juan

Fly to

Louisville

Route

Depart

Return

Price

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 3/4

8:30 am-4:41 pm

2 stops9h 11m

Louisville Intl

Mon 3/9

7:57 pm-11:55 am

1 stop15h 58m

$225

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 3/25

11:32 am-7:07 pm

1 stop7h 35m

Louisville Intl

Sun 3/29

7:57 pm-10:40 am

1 stop14h 43m

$230

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 12/25

6:28 pm-11:59 pm

1 stop6h 31m

Louisville Intl

Thu 1/1

5:05 am-10:05 pm

1 stop16h 00m

$264

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 12/25

8:25 am-6:19 pm

2 stops10h 54m

Louisville Intl

Thu 1/1

5:00 am-11:39 am

1 stop5h 39m

$270

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 12/31

6:28 pm-11:59 pm

1 stop6h 31m

Louisville Intl

Mon 1/5

5:05 am-11:58 am

1 stop5h 53m

$306

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 12/30

3:14 pm-11:59 pm

2 stops33h 45m

Louisville Intl

Sun 1/4

5:05 am-10:05 pm

1 stop16h 00m

$325

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 12/31

8:35 pm-10:54 am

1 stop15h 19m

Louisville Intl

Mon 1/5

7:00 am-7:43 pm

1 stop11h 43m

$332

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 2/21

4:36 pm-2:38 pm

1 stop23h 02m

Louisville Intl

Thu 2/26

2:26 pm-1:24 am

2 stops33h 58m

$352

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 1/23

3:50 pm-10:45 pm

1 stop7h 55m

$113

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 1/22

4:05 pm-9:50 pm

1 stop6h 45m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 19 results
1
2

Best time to book a flight from San Juan to Louisville

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

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

Currently, February is the cheapest month in which you can book a flight from San Juan to Louisville (average of $97). Flying from San Juan to Louisville in June is currently the most expensive (average of $251). 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.

What is the cheapest time of day to fly from SJU to SDF?

Find hourly flight availability from San Juan to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

One of the essential ways to save on airfare from San Juan to Louisville is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 47% on airfare.

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

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated December 12, 2025.
Read through reviews of airlines operating flights from San Juan to Louisville, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

7.9

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
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

7.9

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
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

7.9

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
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Overall

7.9

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 San Juan to Louisville. 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 into for flights to Louisville from San Juan?

    If you book a flight to Louisville from San Juan, you will be flying to Louisville Intl, which is the city’s only airport. Louisville Intl (SDF) is located 5.3 mi from the center of Louisville. There are 0 flights from San Juan to Louisville Intl per day from 3 different airlines.

  • How long is the flight from San Juan to Louisville?

    There are many flights that can get you from San Juan to Louisville in 6h 31m. Fly via American Airlines or Spirit Airlines to get the fastest option. The distance between San Juan and Louisville is about 1807 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Juan to Louisville round-trip?

    Cheapflights users have booked flights from San Juan to Louisville round-trip from $132. Other airlines that can offer you cheap pricing are Southwest, from $175, and American Airlines, from $225. These flights start at 64% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $110. Users have also found prices from $112 and $138 on American Airlines and Southwest, respectively.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from San Juan to Louisville (average of $97). Flying from San Juan to Louisville in June is currently the most expensive (average of $251). 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

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from San Juan to Louisville

Discover the top 3 airlines that operate flights from San Juan to Louisville. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$138Average$385FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$175Average$335FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$225Average$475FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.