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$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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SDF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Louisville Intl are usually found in January or February, booked 89 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap 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 June 12, 2025.

Round-trip from

$225
(Delta)

One-way from

$113
(Delta)

Popular in

May

Cheapest in

January

Average price

$359
From San Juan to Louisville Intl
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One-way flight from San Juan to Louisville Intl
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Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 8/2112:50 pmSJU - SDF
1 stop8h 24mDelta
Mon 8/2510:45 amSDF - SJU
1 stop5h 51mDelta
Deal found 6/10$225
This SmartFares deal was found by Cheapflights users on 6/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/261:02 pmSJU - SDF
1 stop23h 29mSpirit Airlines
Mon 7/71:57 pmSDF - SJU
1 stop22h 00mSpirit Airlines
Deal found 6/11$242
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/269:30 amSJU - SDF
2 stops25h 59mMultiple Airlines
Mon 7/71:57 pmSDF - SJU
1 stop22h 00mMultiple Airlines
Deal found 6/11$251
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/112:40 pmSJU - SDF
1 stop8h 25mSouthwest
Fri 7/185:40 pmSDF - SJU
1 stop6h 50mSouthwest
Deal found 6/11$275
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 11/84:50 pmSJU - SDF
1 stop8h 38mAmerican Airlines
Sun 11/98:27 pmSDF - SJU
1 stop14h 18mAmerican Airlines
Deal found 6/11$315
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/271:05 amSJU - SDF
2 stops21h 19mUnited Airlines
Sun 8/316:15 amSDF - SJU
1 stop7h 30mUnited Airlines
Deal found 6/10$467

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 June 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

Thu 8/21

12:50 pm-9:14 pm

1 stop8h 24m

Louisville Intl

Mon 8/25

10:45 am-4:36 pm

1 stop5h 51m

$225

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 6/26

1:02 pm-12:31 pm

1 stop23h 29m

Louisville Intl

Mon 7/7

1:57 pm-11:57 am

1 stop22h 00m

$242

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 6/26

9:30 am-11:29 am

2 stops25h 59m

Louisville Intl

Mon 7/7

1:57 pm-11:57 am

1 stop22h 00m

$251

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 7/11

2:40 pm-11:05 pm

1 stop8h 25m

Louisville Intl

Fri 7/18

5:40 pm-12:30 am

1 stop6h 50m

$275

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 11/8

4:50 pm-12:28 am

1 stop8h 38m

Louisville Intl

Sun 11/9

8:27 pm-11:45 am

1 stop14h 18m

$315

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 8/27

1:05 am-10:24 pm

2 stops21h 19m

Louisville Intl

Sun 8/31

6:15 am-1:45 pm

1 stop7h 30m

$467

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 8/22

5:46 pm-11:56 pm

1 stop6h 10m

$113

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sun 6/29

8:24 pm-4:32 pm

2 stops20h 08m

$137

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 6/28

1:25 pm-9:45 pm

1 stop8h 20m

$143

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 8/22

7:55 am-9:38 pm

2 stops13h 43m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
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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

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

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Louisville. Price data was last updated on June 9, 2025.

Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Juan to Louisville (average of $299). Flying from San Juan to Louisville in April is currently the most expensive (average of $369). 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 June 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 at noon tend to be the most expensive. A flight in the evening could potentially save you up to 54% on airfare.

What is the cheapest day to fly from San Juan to Louisville?

Use this chart to determine the cheapest time to fly round-trip from San Juan to Louisville. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan to Louisville flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from San Juan to Louisville have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,946 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

  • 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 $225. Other airlines that can offer you cheap pricing are Spirit Airlines, from $242, and Southwest, from $275. These flights start at 43% 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 $113. Users have also found prices from $137 and $143 on Spirit 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, January is the cheapest month in which you can book a flight from San Juan to Louisville (average of $299). Flying from San Juan to Louisville in April is currently the most expensive (average of $369). 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 San Juan?

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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$441FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$294Average$407FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$320Average$499FlexibilityNo cancel feeOn-time63%

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