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Puerto Rico

$113+ Cheap flights from Louisville (SDF) to Puerto Rico

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Louisville to Puerto Rico

Keep the following information in mind while searching for Louisville to Puerto Rico flight deals. Data was last updated September 11, 2025.

Round-trip from

$225
(American Airlines)

One-way from

$113
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$416
From Louisville Intl to Puerto Rico
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One-way flight from Louisville Intl to Puerto Rico
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Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Louisville to Puerto Rico

Cheapest flights from Louisville to Puerto Rico
Explore the most affordable flight options available from Louisville to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 10/133:35 pmSDF - SJU
1 stop8h 24mAmerican Airlines
Tue 10/285:30 amSJU - SDF
2 stops10h 15mAmerican Airlines
Deal found 9/10$225
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/227:33 amSDF - SJU
1 stop16h 26mAmerican Airlines
Fri 10/315:30 amSJU - SDF
1 stop7h 35mAmerican Airlines
Deal found 9/9$230
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/317:33 amSDF - SJU
1 stop16h 26mAmerican Airlines
Sat 11/15:30 amSJU - SDF
1 stop12h 28mAmerican Airlines
Deal found 9/11$241
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Tue 10/216:05 amSDF - SJU
2 stops9h 50mAmerican Airlines
Fri 10/315:30 amSJU - SDF
2 stops13h 07mAmerican Airlines
Deal found 9/9$251
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:09 pmSDF - SJU
1 stop7h 04mDelta
Tue 11/183:20 pmSJU - SDF
1 stop6h 54mDelta
Deal found 9/11$265
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/237:33 amSDF - SJU
1 stop16h 26mAmerican Airlines
Sun 10/265:30 amSJU - SDF
1 stop12h 13mAmerican Airlines
Deal found 9/10$267
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/163:35 pmSDF - SJU
1 stop8h 24mAmerican Airlines
Wed 10/225:30 amSJU - SDF
2 stops10h 15mAmerican Airlines
Deal found 9/10$285
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:09 pmSDF - SJU
1 stop7h 04mDelta
Wed 11/193:20 pmSJU - SDF
1 stop6h 54mDelta
Deal found 9/11$288
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 9/2410:55 amSDF - SJU
2 stops13h 02mUnited Airlines
Sat 9/271:30 pmSJU - SDF
1 stop10h 00mUnited Airlines
Deal found 9/11$305
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sun 9/287:20 amSDF - CPX
2 stops9h 31mUnited Airlines
Tue 9/3010:13 amCPX - SDF
2 stops12h 47mUnited Airlines
Deal found 9/9$1,075

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Puerto Rico 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 September 11, 2025.
Use the filters below to find and compare flights from Louisville to Puerto Rico that are best for you.

Fly from

Louisville

Fly to

Puerto Rico

Route

Depart

Return

Price

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 10/22

7:33 am-11:59 pm

1 stop16h 26m

San Juan Luis Munoz Marin Intl

Fri 10/31

5:30 am-3:45 pm

2 stops10h 15m

$230

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 1/24

11:10 am-9:30 pm

1 stop9h 20m

San Juan Luis Munoz Marin Intl

Sat 1/31

6:00 am-12:35 pm

1 stop7h 35m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 11/10

3:09 pm-11:13 pm

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Fri 11/14

3:20 pm-9:14 pm

1 stop6h 54m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 1/13

1:00 pm-11:40 pm

1 stop9h 40m

San Juan Luis Munoz Marin Intl

Tue 1/20

6:50 pm-12:17 am

1 stop6h 27m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 10/7

3:50 pm-10:45 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Mon 10/13

10:05 am-10:55 pm

1 stop12h 50m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 10/29

6:05 am-3:55 pm

2 stops9h 50m

San Juan Luis Munoz Marin Intl

Sun 11/2

8:00 am-12:22 am

1 stop17h 22m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/24

10:55 am-11:57 pm

2 stops13h 02m

San Juan Luis Munoz Marin Intl

Sat 9/27

1:30 pm-11:30 pm

1 stop10h 00m

$305

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/24

8:10 am-4:31 pm

1 stop8h 21m

San Juan Luis Munoz Marin Intl

Sat 9/27

2:15 pm-10:44 pm

1 stop8h 29m

$305

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 10/10

5:20 pm-11:50 pm

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Fri 10/17

5:30 pm-12:10 am

1 stop6h 40m

$305

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 11/11

9:00 am-12:36 am

2 stops14h 36m

San Juan Luis Munoz Marin Intl

Wed 11/19

8:30 am-2:45 pm

1 stop7h 15m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 27 results
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Best time to book a flight from Louisville to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico

What is the cheapest month to book a flight from Louisville to Puerto Rico?

Currently, September is the cheapest month in which you can book a flight from Louisville to Puerto Rico (average of $254). Flying from Louisville to Puerto Rico in June is currently the most expensive (average of $339). 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 SDF to PR?

Find hourly flight availability from Louisville to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Louisville to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated September 11, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Louisville to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Louisville to Puerto Rico. 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 Puerto Rico?

    For a flight from Louisville to Puerto Rico, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city.

  • How long is the flight from Louisville to Puerto Rico?

    American Airlines, Southwest, and Delta can get you from Louisville to Puerto Rico in just under 7h 04m. Your travel time can differ by up to 9h 22m. The distance from Louisville to Puerto Rico 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 most popular routes from Louisville to Puerto Rico?

    When deciding which route to take from Louisville to Puerto Rico consider Louisville Intl - San Juan Luis Munoz Marin Intl, Louisville Intl - Vieques or Louisville Intl - Culebra as they are the most popular.

  • Can I find deals for flights from Louisville to Puerto Rico that include hotel bookings?

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

  • How can I find direct flights from Louisville to Puerto Rico?

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

  • Can I find deals for business class flights from Louisville to Puerto Rico?

    Yes. Cheapflights offers flight deals from Louisville to Puerto Rico 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 Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Louisville to Puerto Rico (average of $254). Flying from Louisville to Puerto Rico in June is currently the most expensive (average of $339). 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

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Alternative routes for Louisville to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Louisville to Puerto Rico

Discover the top 5 airlines that operate flights from Louisville to Puerto Rico. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$152Average$298FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$225Average$459FlexibilityNo cancel feeOn-time63%
DeltaCheapest$225Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$263Average$463FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$509FlexibilityNo cancel feeOn-time69%

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