$113 Cheap Flights from San Juan (SJU) to Louisville (SDF)

View $113 flight on Thu, Nov 20, 2025Opens in a new window

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF)

Cheap Flights from San Juan to Louisville (SJU-SDF)

Prices were available within the past 7 days and start at $113 for one-way flights and $225 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Dec 18 - Tue, Jan 6
SJU
San Juan
SDF
Louisville
$225 Roundtrip, just found
$225
Roundtrip
just found
Select Delta flight, departing Thu, Dec 18 from San Juan to Louisville, returning Tue, Jan 6, priced at $225 just found
United
Wed, Mar 11 - Tue, Mar 24
SJU
San Juan
SDF
Louisville
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select United flight, departing Wed, Mar 11 from San Juan to Louisville, returning Tue, Mar 24, priced at $225 found 2 days ago
United
Wed, Mar 11 - Tue, Mar 24
SJU
San Juan
SDF
Louisville
$227 Roundtrip, found 2 days ago
$227
Roundtrip
found 2 days ago
Select United flight, departing Wed, Mar 11 from San Juan to Louisville, returning Tue, Mar 24, priced at $227 found 2 days ago
American Airlines
Thu, Dec 18 - Tue, Jan 6
SJU
San Juan
SDF
Louisville
$228 Roundtrip, just found
$228
Roundtrip
just found
Select American Airlines flight, departing Thu, Dec 18 from San Juan to Louisville, returning Tue, Jan 6, priced at $228 just found
Southwest Airlines
Fri, Jan 23 - Sat, Jan 31
SJU
San Juan
SDF
Louisville
$231 Roundtrip, found 1 day ago
$231
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Jan 23 from San Juan to Louisville, returning Sat, Jan 31, priced at $231 found 1 day ago
American Airlines
Wed, Jan 14 - Mon, Jan 19
SJU
San Juan
SDF
Louisville
$234 Roundtrip, found 6 days ago
$234
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 14 from San Juan to Louisville, returning Mon, Jan 19, priced at $234 found 6 days ago
American Airlines
Fri, Nov 21 - Mon, Nov 24
SJU
San Juan
SDF
Louisville
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Nov 21 from San Juan to Louisville, returning Mon, Nov 24, priced at $250 found 1 day ago
United
Sat, Feb 14 - Sat, Feb 21
SJU
San Juan
SDF
Louisville
$251 Roundtrip, found 8 hours ago
$251
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Feb 14 from San Juan to Louisville, returning Sat, Feb 21, priced at $251 found 8 hours ago
United
Wed, Dec 17 - Tue, Jan 6
SJU
San Juan
SDF
Louisville
$254 Roundtrip, found 15 hours ago
$254
Roundtrip
found 15 hours ago
Select United flight, departing Wed, Dec 17 from San Juan to Louisville, returning Tue, Jan 6, priced at $254 found 15 hours ago
Spirit Airlines
Wed, Dec 24 - Thu, Jan 8
SJU
San Juan
SDF
Louisville
$307 Roundtrip, found 22 hours ago
$307
Roundtrip
found 22 hours ago
Select Spirit Airlines flight, departing Wed, Dec 24 from San Juan to Louisville, returning Thu, Jan 8, priced at $307 found 22 hours ago

Find the cheapest month to fly from San Juan (SJU) to Louisville (SDF)

April is typically the cheapest month to fly

From $194 - $465 per traveler.

Alternative airports near Louisville

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Louisville Intl. SDF. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $620
SDF
Louisville Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $620

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF) cost?
Lock in a cheap one-way flight from $113 or cheap return flight from $225 from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF)?
The cheapest month to fly from SJU to SDF is December, when there's less demand. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from SJU to SDF. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF)?
There aren't any daily nonstop flights available from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from SJU to SDF?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a number of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF)?
To avoid possible delays on the Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF) last-minute?
Holding off until just before your departure to book a flight from SJU to SDF often results in higher prices. While it's possible to find some last-minute deals, they're not always guaranteed. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book a SJU to SDF flight and hotel package?
You can save money by booking a SJU to SDF flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your preferred accommodations and flights, consider adding extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Louisville Intl. Airport (SDF)?
In most cases, you can modify or cancel your SJU to SDF flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need further details, head to our Customer Service portal.

Travel information

Origin airport
Luis Munoz Marin Intl.
Destination airport
Louisville Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$225
Distance
1808 mi

Book with confidence

San Juan to Louisville Flights

The cheapest times to fly from San Juan to Louisville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Juan to Louisville are during the month of December. You can find some of the cheapest flights from San Juan to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Juan to Louisville

Sunday is one of the best days to book for cheap flights from San Juan to Louisville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Juan to Louisville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Juan to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $113 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Juan to Louisville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Juan to Louisville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Juan to Louisville Flights

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*Available to One Key members.