$143 Find Cheap Flights from Louisville to Puerto Rico - Compare and Save

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Cheap Flights from Louisville to Puerto Rico

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
San Juan
5h 45m2 stops
from $247per person
Aguadilla
8h 52m2 stops
from $436per person
Booking Insights

Price, demand and travel trends for Louisville to Puerto Rico flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Louisville to Puerto Rico cheaper or more expensive than last year?

Fares from Louisville to Puerto Rico are running about 6% higher than they were around this time last year, averaging $464 round-trip.

What are the cheapest fares from Louisville to Puerto Rico right now?

The cheapest fares from Louisville to Puerto Rico on KAYAK in the last week were to San Juan Luis Munoz Marin Intl (SJU) from $247 round-trip, and to Aguadilla Borinquen (BQN) from $436 round-trip.

What’s the cheapest month to fly from Louisville to Puerto Rico?

April is the cheapest time of year to fly, with average fares of $374. Prices are highest in December, when average flight costs increase to around $575.

When is the best time to book flights from Louisville to Puerto Rico?

Book your flights 10 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 35% compared to booking last-minute (within 2 weeks of departure).

Which airport in Puerto Rico is the cheapest to fly to from Louisville?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Puerto Rico are:

• San Juan Luis Munoz Marin Intl (SJU) (avg. price $476)
• Aguadilla Borinquen (BQN) (avg. price $660)

What’s the cheapest day to fly from Louisville to Puerto Rico?

Tuesday tends to be the cheapest day to fly from Louisville to Puerto Rico, while Monday is the most expensive. Fares run about 11% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Louisville to Puerto Rico?

Data from the past 12 months shows it's cheapest to fly to Puerto Rico during the afternoon with average prices of $412. The morning is the most expensive time to fly, with average prices of $490.

Key details for Louisville to Puerto Rico flights

Low season

October

Cheapest flight

$143
Beat the crowds with an average 46% drop in travelers.
The most popular month to fly with an average 31% increase in travelers.
One-way flight from Louisville to San Juan Luis Munoz Marin Intl Airport

Your Louisville to Puerto Rico flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Louisville to Puerto Rico?

    Yes. Fares from Louisville to Puerto Rico are low right now. As a rule of thumb, a round-trip under $363 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Louisville to Puerto Rico?

    Over the past 12 months, round-trip fares from Louisville to Puerto Rico have ranged from $363 to $590.

  • What airlines fly nonstop from Louisville to Puerto Rico?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Louisville to Puerto Rico. One-stop options include:

    • Delta
    • Southwest
    • American Airlines

  • Which cabin classes are available on flights from Louisville to Puerto Rico?

    On flights from Louisville to Puerto Rico you can book Economy Class or First Class.

  • What are some popular landmarks in Puerto Rico?

    KAYAK travelers' favorite landmarks in Puerto Rico include:

    • Viejo San Juan
    • Puerto Rico Convention Center
    • Condado Beach
    • Ocean Park

Your guide to booking Louisville to Puerto Rico flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 10 weeks before your trip. KAYAK data shows fares in this window are around 35% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for April when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Tuesday is usually the cheapest. Flights on Monday cost about 11% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, San Juan Luis Munoz Marin Intl (SJU) is the cheapest airport to fly into from Louisville. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in San Juan, which is the most popular destination in Puerto Rico. From there, it's easy to continue on to other popular destinations such as Carolina, Fajardo and Rio Grande.

Reviews of the top 4 airlines serving from Louisville to Puerto Rico

 
Need help choosing which airline to fly with from Louisville to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4220 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

Terrible, decided to delay our flight since another flight require a flight captain

2.0 MediocreChih Hsuan, Nov 2026
Read more Southwest reviews

Terrible, decided to delay our flight since another flight require a flight captain

staff and crew were great but the flight delays for the last few flights are insane. After a long day of work and you will get a notification of flights delay is not the message we want to see. And for some reason it keeps happening often this year.

I love southwest. I can not wait until all the planes convert to the upgraded planes. I love the charging option and the newer seats. Thank you from a very loyal Southwest customer.

My return flight was much better than the flight there! I paid for seat to Veagas but not the return. Thankgoodness they assigned me a seat with additional leg room as I have back and leg problems. I really appreciate it. With the flight already being super expensive due to gas prices and having to pay for bags (now) I needed to save some money.

My first flight from LGA to STL was not good. They didn't do service until over halfway through the flight, the internet didn't really work, and the crew all seemed like they didn't want to be there.

We were stressed about landing as our connecting flight was about to start boarding, being unfamiliar with the airport or where the gates were. We exited the plane to discover we were at the gate we needed. We would be getting back on the same plane but nobody told us we could have just stayed onboard. My wife and I were seated on aisle seats across from each other. We asked if there was a way we could sit together. Once we were at cruising altitude they let us move to an unoccupied row so that was nice.

It’s Southwest. The seats are small, the snacks are meh, it’s $50 to check a bag. It’s exactly fine. Could have been better. Could have been worse. It’s not Spirit

They delayed my flight all day but didn't try to reschedule me until all other options were gone. Ended up on a red eye. Not happy. Lesson learned, don't book the last flight from SJC to RDU.

Every single flight I take with southwest is delayed by at least one hour. Unbelievable

it was great. the crew is exceptional. the flight was on time.

Bad. Flight was delayed due to maintenance issue with Delta. Seats were small, no service, bag got broken on initial flight. Cramped and hot. Sitting inside with no ac.

The wait in the tunnel to enter the plane was too long. The counter personnel, specially ''Israel'' was really not welcoming considering Delta Standards. Other than this everything was good overall.

No snacks not been water was offered I fly weekly and have to select Economy or extra comfort per business rules but will choose American at least they offer mid seat class passengers water. on short flights. The WIFI was awful on the plane as well. The thing I can not figure out is why you treat business class people this way we spend more money that your one trip first class passengers cumulative than others maybe look at the company name of the people flying and treat us better as there are thousands of us flying weekly and choose what airline we want to select.

an he late. super rude gate agent, to every person. spoke down at people.

The boarding agent guy in Lexington on 7/23 that boarded the flights to Atlanta is very rude for working in customer service. I know there were delays but he was dismissive rude and arrogant. Most native Kentucky residents are nice and very cordial he needs to eat a big ole piece of humble pie. I watched him be rude to several people and as much as he could of filled up a delayed flight to save you money and he was so rude to people it was ridiculous. Next no water or snacks on short flights is awful 1st you delay a flight then do not even offer water on the flight.. No thanks I like delta better but I travel ever week and to be treated like this might as well fly American at least they offer water and have better rewards.

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

It was good. The leg room was not great in Row 1.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

The crew was very polite as I have a few handicaps and everything was made pleasant. Check-in was easy as I was brought on board by the wheelchair assistant. One flight attendant did make sure my personal item was carefully stored under the seat in front of me. I was made to feel welcome as a customer as I made my first trip with a few disabilities. Entertainment and wifi worked quite well. The only food service were snacks and drinks. Those were okay. Overall it was a very smooth flight and encouraged me to use Delta again.

When we checked in my friend and I were sitting seperate. By the time we got to boarding, they automatically switched our seats. I really liked that.

We left nearly 3 hours late...so that was not a good experience. We boarded and then ended up about 1 hour stuck at the gate. Not a good experience.

It is completely insane to me that first class does not include WiFi. Also does not include lounge access. Port for phone charging did not work. The crew was absolutely lovely, and the food was excellent.

I appreciate how quickly and kindly the people at the gate at DCA accommodated several of us who wanted to switch from the 6pm flight to the 5pm flight at the last minute. The flight crew was helpful to us too (dealing with luggage).

Very uncomfortable and cramped seats. Everything else was okay, the crew members were nice but nothing was exceptional.

Check in went smoothly. Flight attendant who was assigned my area barely paid any attention to me! She acted as though she was extremely busy and flustered. Maybe she was new?! I told her to change the language on my screen, she said she’d come back to help me but never did so I was able to solve the problem on my own. She came back and said she’d made adjustments on her end. Highly doubt it because I found the setting to change the language! Also, I noticed everyone was eating before we landed so I pushed my help button and she never came so I got up to find her to ask her if I can have breakfast. She said they are not serving breakfast but I can have a sandwich. Yes, that was her response as I saw everyone eating breakfast!!!

The first leg of my trip the Republic Airlines aircraft was late due to a maintenance problem. Then I called United to reroute. Their reroute airline lost my bag but found it and returned it two days later. Hopefully my return trip home is better.

My flight was completely full. Making me very stressful with people walking around all the time. I believe airlines can do better for entertain people during the flight.

The male air hostess was rude and didn’t provide good customer service. Didn’t even offer me a drink

The United website was easy to use and had all the information I needed. I needed to change my flight and it was accomplished easily on line. I was also easily able to upgrade and for a reasonable price. Boarding went smoothly and the flight was in time. The service was good in board but the crew did not seem happy at all. Limited availability of meals - not much choice for purchase and in business class they ran out of one of the meal choices by row 4. .

This trip was a Christmas gift to our family. We were flying from Lexington to Palm Springs. When we were checking in the ticket agent said one bags was over weight by 4 LBS. We were flying first class which has baggage weight of 70 LBS per bag, one bag was 54LBS. We then had to take items from one bag to another. The agent also saw we had a dog with us. Once on the plane we were seated with the dog in the carrier. The United ticket agent came in the plane with two other people, I believe one was TSA and the other some security officer. The United agent said we had not paid for the dog ticket. We had paid for the ticket when we purchased our tickets. She did not give me time to find the email receipt. She then threatened all three of us with either I come with her or she would have all three of physically removed from the plane. I left the plane to pay for another ticket. She had to take my credit back to where we checked in. She acted as if it needed to be done immediately. She said we had 3 minutes. We then sat at the gate for approximately another 45 minutes. This was so embarrassing…to be threatened to be removed from a plane that we paid for all tickets including the dog. The flight attendance on the next leg of our trip were not very attentive to the passengers. On the plus side all the flights were on time. All in all, this was a miserable way to start a holiday vacation. United Airlines showed no compassion towards the whole incident. I feel we were purposely neglected.

Ultimately fine but plane seemed dated and creaky and landing was hard…. At no time did I feel unsafe so thank you.

To many flight at the same hour...no respect to handicap....

Better perks for corporate employees whom travel often and spend a lot of money with the airlines. Snacks were terrible chips crackers are ideas. Flight and crew were great comfort was fine entertainment not so great so so called status members means nothing

Flight had mechanical issues and it was delayed 30 mins - some of us boarded and then had to deplane.

Delayed flight. Missed connection, AA put us on a later connecting flight. The connection flight was delayed 4 times and we had to deplane. Didnt get home until 3am, when I was supposed to be home at 8:30p. Zero compensation offered from American. I would not fly them again.

Better snacks but flight and crew were amazing on this flight

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

They needed to de-ice the plane. Apparently airlines have a problem keeping their de-icing vehicles in good repair. After we backed away from the gate we sat and didn't move for nearly an hour. Nearly an HOUR with minimal communication from the flight crew. Eventually the sun took care of what American Airlines could not and melted the minimal ice. We finally took of a hour late which, in turn, jacked up our connection in Chicago.

More options for your flight from Louisville to Puerto Rico

Complete your trip to Puerto Rico with a hotel stay or car rental