HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$113+ Cheap flights from Luis Munoz Marin Intl (SJU) 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SDF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Luis Munoz Marin Intl to Louisville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Louisville Intl are usually found in January or February, booked 90 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) 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 September 11, 2025.

Round-trip from

$225
(United Airlines)

One-way from

$113
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$421
From San Juan Luis Munoz Marin Intl to Louisville Intl
Search Deals
One-way flight from San Juan Luis Munoz Marin Intl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Luis Munoz Marin Intl to Louisville

Cheapest flights from Luis Munoz Marin Intl to Louisville
Explore the most affordable flight options available from Luis Munoz Marin Intl to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 9/301:05 amSJU - SDF
2 stops12h 16mUnited Airlines
Tue 10/146:15 amSDF - SJU
1 stop7h 30mUnited Airlines
Deal found 9/10$225
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:30 amSJU - SDF
1 stop9h 32mAmerican Airlines
Sun 10/266:45 amSDF - SJU
1 stop7h 23mAmerican Airlines
Deal found 9/10$230
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:43 pmSJU - SDF
1 stop6h 32mAmerican Airlines
Tue 10/148:18 amSDF - SJU
1 stop13h 52mAmerican Airlines
Deal found 9/10$246
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/165:30 amSJU - SDF
1 stop9h 32mAmerican Airlines
Sun 10/197:33 amSDF - SJU
1 stop16h 26mAmerican Airlines
Deal found 9/9$251
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/105:30 amSJU - SDF
1 stop12h 13mAmerican Airlines
Tue 10/1410:52 amSDF - SJU
1 stop13h 07mAmerican Airlines
Deal found 9/9$285
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/75:30 amSJU - SDF
2 stops10h 15mAmerican Airlines
Sat 10/117:26 amSDF - SJU
1 stop15h 39mAmerican Airlines
Deal found 9/9$310
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/222:49 amSJU - SDF
1 stop19h 58mMultiple Airlines
Sun 10/266:58 pmSDF - SJU
1 stop20h 18mMultiple Airlines
Deal found 9/10$321
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:59 amSJU - SDF
2 stops16h 04mMultiple Airlines
Sun 10/196:58 pmSDF - SJU
1 stop20h 18mMultiple Airlines
Deal found 9/11$325

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl 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 September 11, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Louisville that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Louisville

Route

Depart

Return

Price

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 9/30

1:05 am-11:33 am

1 stop10h 28m

Louisville Intl

Tue 10/14

6:15 am-1:45 pm

1 stop7h 30m

$225

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 10/23

5:30 am-3:02 pm

1 stop9h 32m

Louisville Intl

Sun 10/26

6:45 am-2:08 pm

1 stop7h 23m

$230

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 10/16

5:30 am-3:02 pm

1 stop9h 32m

Louisville Intl

Sun 10/19

7:33 am-11:59 pm

1 stop16h 26m

$251

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 10/10

5:30 am-5:43 pm

1 stop12h 13m

Louisville Intl

Tue 10/14

10:52 am-11:59 pm

1 stop13h 07m

$285

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 10/7

3:00 pm-9:25 am

1 stop18h 25m

Louisville Intl

Sat 10/11

7:26 am-11:05 pm

1 stop15h 39m

$310

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 10/22

2:49 am-10:47 pm

1 stop19h 58m

Louisville Intl

Sun 10/26

6:58 pm-3:16 pm

1 stop20h 18m

$321

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 10/21

5:05 am-11:00 am

1 stop5h 55m

Louisville Intl

Tue 10/21

3:50 pm-10:45 pm

1 stop6h 55m

$325

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sun 11/2

5:40 am-11:20 am

1 stop6h 40m

$113

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 10/2

1:30 pm-11:00 pm

1 stop9h 30m

$113

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 11/5

6:43 pm-12:01 am

1 stop6h 18m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 16 results
1
2

Best time to book a flight from Luis Munoz Marin Intl to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Louisville

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Louisville. Price data was last updated on August 29, 2025.

The price you pay for your flight from San Juan Luis Munoz Marin Intl Airport to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Louisville?

Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Louisville (average of $299). Flying from San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl 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 September 11, 2025.

One of the essential ways to save on airfare from San Juan Luis Munoz Marin Intl Airport 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.

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 September 11, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from San Juan Luis Munoz Marin Intl Airport to Louisville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl?

    For a flight from San Juan Luis Munoz Marin Intl to Louisville, you will be flying into Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 inbound flights from San Juan Luis Munoz Marin Intl per day. 4 airlines have flights to Louisville Intl from San Juan Luis Munoz Marin Intl on a regular basis.

  • How long is the flight from San Juan Luis Munoz Marin Intl Airport to Louisville?

    United Airlines and American Airlines can get you from San Juan Luis Munoz Marin Intl Airport to Louisville in just under 9h 32m. Your travel time can differ by up to 56m. The distance from San Juan Luis Munoz Marin Intl Airport to Louisville is about 1807 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Louisville round-trip?

    According to our current data, Delta ($138), Southwest ($175), and United Airlines ($232) offers the cheapest pricing from San Juan Luis Munoz Marin Intl Airport to Louisville. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to Louisville for 65% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to Louisville one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $113. Users have also found prices from $113 and $113 on United Airlines and Delta, respectively.

  • Can I find deals for flights from Luis Munoz Marin Intl to Louisville that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luis Munoz Marin Intl to Louisville.

  • Can I find deals for business class flights from Luis Munoz Marin Intl to Louisville?

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Louisville?

    Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Louisville (average of $299). Flying from San Juan Luis Munoz Marin Intl Airport 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 Louisville?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Luis Munoz Marin Intl to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Nashville flights
Luis Munoz Marin Intl to Cincinnati flights
Luis Munoz Marin Intl to Knoxville flights

Top 4 airlines flying from Luis Munoz Marin Intl to Louisville

Discover the top 4 airlines that operate flights from Luis Munoz Marin Intl 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$138Average$451FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$175Average$335FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$232Average$390FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$255Average$408FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.