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Puerto Rico

$103+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJU
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$205
(American Airlines)

One-way from

$103
(Delta)

Popular in

March

Cheapest in

October

Average price

$452
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. 5% potential increase in price ($27 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 July 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 July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. 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 10/282:35 pmSJU - SDF
1 stop10h 00mAmerican Airlines
Deal found 7/27$205
This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:30 amSDF - SJU
1 stop26h 34mSpirit Airlines
Fri 9/1211:59 amSJU - SDF
1 stop10h 29mSpirit Airlines
Deal found 7/29$226
This Southwest deal was found by Cheapflights users on 7/27. 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.
Fri 9/264:20 pmSDF - SJU
1 stop7h 10mSouthwest
Mon 9/295:50 amSJU - SDF
1 stop6h 40mSouthwest
Deal found 7/27$245
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/77:20 amSDF - SJU
1 stop7h 24mUnited Airlines
Fri 9/121:05 amSJU - SDF
2 stops12h 12mUnited Airlines
Deal found 7/29$288
This Delta deal was found by Cheapflights users on 7/28. 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.
Sun 9/76:00 amSDF - SJU
1 stop10h 36mDelta
Thu 9/185:41 pmSJU - SDF
1 stop6h 11mDelta
Deal found 7/28$300
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/286:15 amSDF - CPX
2 stops10h 36mUnited Airlines
Tue 9/3010:13 amCPX - SDF
2 stops12h 47mUnited Airlines
Deal found 7/28$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 July 29, 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

Mon 10/13

3:35 pm-11:59 pm

1 stop8h 24m

San Juan Luis Munoz Marin Intl

Tue 10/28

2:35 pm-12:35 am

1 stop10h 00m

$205

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/17

10:14 am-12:44 am

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Tue 9/23

1:59 am-9:19 am

1 stop7h 20m

$243

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/26

4:20 pm-11:30 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Mon 9/29

5:50 am-12:30 pm

1 stop6h 40m

$245

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/8

9:05 am-11:57 pm

2 stops14h 52m

San Juan Luis Munoz Marin Intl

Sat 9/20

1:25 pm-10:58 pm

1 stop9h 33m

$288

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 9/7

6:00 am-4:36 pm

1 stop10h 36m

San Juan Luis Munoz Marin Intl

Thu 9/18

5:41 pm-11:52 pm

1 stop6h 11m

$300

LouisvilleCulebra

SDF - CPX

SDFCPX

Louisville Intl

Sun 9/28

6:15 am-4:51 pm

2 stops10h 36m

Culebra

Tue 9/30

10:13 am-11:00 pm

2 stops12h 47m

$1,075

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 8/26

8:10 am-4:36 pm

1 stop8h 26m

$103

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 1/17

3:17 pm-12:36 am

1 stop8h 19m

$122

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/25

10:50 am-10:49 pm

1 stop11h 59m

$133

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 10/6

8:30 am-2:11 pm

2 stops29h 41m

$150

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 29, 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 July 29, 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
4,238 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,977 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,893 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,040 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

  • What are the cheapest airlines to fly from Louisville to Puerto Rico one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $103. Users have also found prices from $122 and $133 on United Airlines and American Airlines, respectively.

  • 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 - Culebra or Louisville Intl - Vieques 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$152Average$294FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$225Average$492FlexibilityNo cancel feeOn-time63%
DeltaCheapest$225Average$401FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$275Average$509FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$276Average$472FlexibilityNo cancel feeOn-time71%

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