Louisville

$144+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SDF
May 25 — Jun 11
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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 April 25, 2026.

This Delta deal was found by Cheapflights users on 4/21. 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 8/271:06 pm
SJU
-
SDF
1 stop10h 53m
Delta
Fri 9/46:00 am
SDF
-
SJU
1 stop10h 35m
Delta
Deal found 4/21$244
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 5/58:30 am
SJU
-
SDF
1 stop24h 06m
Multiple Airlines
Sat 5/98:06 pm
SDF
-
SJU
1 stop19h 06m
Multiple Airlines
Deal found 4/20$246
This American Airlines deal was found by Cheapflights users on 4/22. 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 8/256:51 am
SJU
-
SDF
1 stop10h 56m
American Airlines
Tue 9/16:30 am
SDF
-
SJU
1 stop6h 18m
American Airlines
Deal found 4/22$250
This American Airlines deal was found by Cheapflights users on 4/22. 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 8/274:53 pm
SJU
-
SDF
1 stop6h 51m
American Airlines
Fri 9/47:31 am
SDF
-
SJU
1 stop14h 53m
American Airlines
Deal found 4/22$269
This Mytrip deal was found by Cheapflights users on 4/24. 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 5/148:04 pm
SJU
-
SDF
1 stop13h 24m
Spirit Airlines
Sun 5/1710:33 am
SDF
-
SJU
1 stop8h 26m
Spirit Airlines
Deal found 4/24$301
This American Airlines deal was found by Cheapflights users on 4/20. 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 12/14:44 pm
SJU
-
SDF
1 stop8h 38m
American Airlines
Mon 12/78:30 am
SDF
-
SJU
1 stop11h 26m
American Airlines
Deal found 4/20$316
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Sun 8/236:00 am
SJU
-
SDF
1 stop27h 49m
Multiple Airlines
Sun 8/3011:12 am
SDF
-
SJU
1 stop13h 11m
Multiple Airlines
Deal found 4/20$323
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Fri 5/85:15 pm
SJU
-
SDF
2 stops15h 21m
Multiple Airlines
Mon 5/1110:33 am
SDF
-
SJU
1 stop8h 26m
Multiple Airlines
Deal found 4/24$325
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/148:04 pm
SJU
-
SDF
1 stop13h 24m
Multiple Airlines
Sun 5/1710:33 am
SDF
-
SJU
2 stops21h 31m
Multiple Airlines
Deal found 4/24$334

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 April 25, 2026.

Round-trip from

$244
(Delta)

One-way from

$144
(OneTravel)

Popular in

April

Cheapest in

October

Average price

$524
From San Juan to Louisville Intl
One-way flight from San Juan to Louisville Intl
Highest demand for flights based on searches. 13% potential increase in price ($56 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 April 25, 2026.
Use the filters below to find and compare flights from San Juan to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 5/6

1:00 am-1:52 pm

2 stops12h 52m

Louisville Intl

Mon 5/11

5:40 am-2:44 pm

1 stop9h 04m

$446

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 6/16

5:00 am-12:25 pm

1 stop7h 25m

Louisville Intl

Tue 6/23

12:40 pm-11:45 pm

1 stop11h 05m

$466

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 7/4

6:30 am-6:30 pm

1 stop12h 00m

Louisville Intl

Fri 7/24

10:45 am-12:15 am

1 stop13h 30m

$484

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 7/9

7:25 am-12:34 am

1 stop17h 09m

Louisville Intl

Thu 7/23

8:15 am-10:59 pm

1 stop14h 44m

$501

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 6/16

6:20 am-11:08 pm

1 stop16h 48m

Louisville Intl

Tue 6/23

5:00 am-3:48 pm

2 stops10h 48m

$512
Quickest round-trip

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 5/9

7:40 am-3:09 pm

1 stop7h 29m

Louisville Intl

Wed 5/13

11:11 am-8:34 pm

1 stop9h 23m

$526
Cheapest one-way
Quickest one-way

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 7/9

5:56 pm-12:26 am

1 stop6h 30m

$158

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 4/30

4:30 pm-8:38 am

1 stop16h 08m

$198

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 5/2

12:55 pm-11:59 pm

1 stop11h 04m

$198

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 7/23

5:15 pm-7:58 pm

2 stops26h 43m

$213

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 17 resultsSorted by cheapest first
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, March is the cheapest month in which you can book a flight from San Juan to Louisville (average of $108). Flying from San Juan to Louisville in April is currently the most expensive (average of $260). 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 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 April 25, 2026.
Read through reviews of airlines operating flights from San Juan to Louisville, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 7h 25m. Fly via United Airlines or Southwest 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 $199. Other airlines that can offer you cheap pricing are Southwest, from $205, and American Airlines, from $226. These flights start at 47% 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 American Airlines. According to our data, you can fly for as low as $112. Users have also found prices from $112 and $138 on Delta 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, March is the cheapest month in which you can book a flight from San Juan to Louisville (average of $108). Flying from San Juan to Louisville in April is currently the most expensive (average of $260). 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
Elizabethtown
Corydon
Jeffersonville
Bardstown

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Alternative routes for San Juan to Louisville

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

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 April 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$199Average$389FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$205Average$398FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$446FlexibilityNo cancel feeOn-time71%

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