Cheap Flights from Louisville Muhammad Ali International to San Juan Luis Munoz Marin

Compare Louisville Muhammad Ali International to San Juan Luis Munoz Marin flight deals

Find the cheapest month or even day of the year to fly to San Juan Luis Munoz Marin

Book the best San Juan Luis Munoz Marin fare with no extra fees

Flight deals from Louisville Muhammad Ali International Airport to San Juan Luis Munoz Marin Airport

Looking for a cheap last-minute deal or the best return flight from Louisville Muhammad Ali International Airport to San Juan Luis Munoz Marin Airport? If you want to travel next month, return fares start from R 3,773. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Louisville Muhammad Ali International to San Juan Luis Munoz Marin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Louisville Muhammad Ali International to San Juan Luis Munoz Marin flights are currently cheapest in March.

Louisville Muhammad Ali International to San Juan Luis Munoz Marin: Alternative routes

Compare routes from Louisville Muhammad Ali International to San Juan below. You may find an airport to fly into that's cheaper, faster, or easier than San Juan Luis Munoz Marin.

Louisville to San Juan: Flight information

The things to know before you go.
Cheapest flight foundR 2,250
Cheapest month to flyMarch

Finding cheap flights from Louisville Muhammad Ali International to San Juan Luis Munoz Marin: Frequently asked questions

The best price we found for a return flight from Louisville Muhammad Ali International to San Juan Luis Munoz Marin is R 3,700. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Louisville Muhammad Ali International to San Juan Luis Munoz Marin. But we found flights with one or more stops from R 3,700.
As of March 2026, there are no flights flying from Louisville Muhammad Ali International to San Juan Luis Munoz Marin.
The cheapest month to fly from Louisville Muhammad Ali International to San Juan Luis Munoz Marin is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Louisville Muhammad Ali International Airport to San Juan Luis Munoz Marin Airport on Friday, 1 May 2026.
No airlines currently offer direct flights between Louisville Muhammad Ali International Airport and San Juan Luis Munoz Marin Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan Luis Munoz Marin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Southwest Airlines offers the cheapest flight tickets to San Juan Luis Munoz Marin.

Flying from Louisville International Airport-Standiford Field (SDF) to Luis Munoz Marin International Airport (SJU): what you need to know

  • Louisville and San Juan follow the same timezone, UTC-4.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Show up at the airport on time to board your SDF to SJU flight.

  • Flying during a peak time such as July? Major public holidays and other popular periods can result in longer queues and delays at airport checkpoints. Play things extra safe and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Think about adding a stopover when booking your ticket from Louisville International Airport-Standiford Field to Luis Munoz Marin International Airport. Just deselect 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here are some options between SDF and SJU:

    • Hartsfield-Jackson Atlanta International Airport

    • Miami International Airport

    • Washington Dulles International Airport

How to find the cheapest flights from Louisville International Airport-Standiford Field (SDF) to Luis Munoz Marin International Airport (SJU)

  • The cheapest price we've found for a one-way Louisville International Airport-Standiford Field to Luis Munoz Marin International Airport flight is R 2,250. A round-trip plane ticket right now is R 3,700. Depending on the availability when you book, these fares can change.

  • To score cheap tickets from SDF to SJU, book ahead. Airlines typically offer their best fares when flights are first made available.

  • If you're willing to be flexible with your travel dates, try using the 'Whole month' tool. It'll show you the lowest price across the month when looking for a flight from Louisville International Airport-Standiford Field to Luis Munoz Marin International Airport.

  • Snapping up cheap flights from SDF to SJU is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as a new deal comes up.

  • Select your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Louisville International Airport-Standiford Field to Luis Munoz Marin International Airport.

Handy information about Louisville International Airport-Standiford Field (SDF)

  • You'll find SDF at 600 Terminal Drive.

  • When it comes to the on-time performance of Louisville International Airport-Standiford Field, 77.69% of flights meet their scheduled arrival time.

  • Central Louisville to Louisville International Airport-Standiford Field is approximately 23 kilometres. Depending on traffic, it'll take about 25 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Expect a journey time of about 2 hours 40 minutes on public transport.

  • Need a convenient hotel near SDF? If you've booked an early flight from Louisville International Airport-Standiford Field to Luis Munoz Marin International Airport, these stays will have you moments from your departure gate:

Arriving at Luis Munoz Marin International Airport (SJU)

Getting from Luis Munoz Marin International Airport (SJU) to central San Juan

  • Luis Munoz Marin International Airport to central San Juan has a drive time of around 10 minutes. It's approximately 8 kilometres away.

  • It'll take around 55 minutes if you're travelling on public transport.

When to fly to Luis Munoz Marin International Airport (SJU)

  • July is the busiest month for flights from Louisville International Airport-Standiford Field to Luis Munoz Marin International Airport. To steer clear of the crowds, travel to San Juan in May.

  • Before locking in your flight from Louisville International Airport-Standiford Field to Luis Munoz Marin International Airport, think about the type of weather you enjoy. September is the warmest month in San Juan, with the temperature ranging from 23ºC (73ºF) to 33ºC (91ºF).

  • Search for cheap tickets from SDF to SJU in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 20ºC (68ºF) and 28ºC (82ºF) on average.

Explore more of Puerto Rico

  • Bayamon is just one of the many cities in Puerto Rico waiting to be discovered after you've seen San Juan. Around 10 kilometres away to the west, top sights here include Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña, Monumento a los Trovadores and Parque Palm Court.

  • Carolina is another sought-after destination in Puerto Rico and is around 11 kilometres east of San Juan. No journey is complete without dropping by Isla Verde Beach, Parque de Doble A Roberto Clemente Walker and Drone Zone Track.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.