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$130+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SDF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This Delta deal was found by Cheapflights users on 1/28. 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.
Wed 3/46:15 am
SJU
-
SDF
1 stop6h 12m
Delta
Tue 3/1010:13 am
SDF
-
SJU
1 stop10h 05m
Delta
Deal found 1/28$246
This American Airlines deal was found by Cheapflights users on 1/29. 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 3/48:40 am
SJU
-
SDF
2 stops9h 41m
American Airlines
Mon 3/97:00 am
SDF
-
SJU
1 stop13h 34m
American Airlines
Deal found 1/29$286
This Mytrip deal was found by Cheapflights users on 1/28. 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.
Tue 3/241:45 am
SJU
-
SDF
1 stop9h 23m
Spirit Airlines
Mon 3/3012:03 pm
SDF
-
SJU
1 stop10h 00m
Spirit Airlines
Deal found 1/28$293
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/276:00 am
SJU
-
SDF
1 stop7h 21m
Multiple Airlines
Fri 3/61:19 pm
SDF
-
SJU
2 stops32h 54m
Multiple Airlines
Deal found 1/28$306
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 am
SJU
-
SDF
1 stop7h 21m
Spirit Airlines
Fri 3/61:19 pm
SDF
-
SJU
1 stop8h 50m
Spirit Airlines
Deal found 1/28$315
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/241:45 am
SJU
-
SDF
1 stop9h 23m
Multiple Airlines
Mon 3/309:13 pm
SDF
-
SJU
2 stops24h 50m
Multiple Airlines
Deal found 1/28$321
This Delta deal was found by Cheapflights users on 1/29. 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.
Sat 2/143:55 pm
SJU
-
SDF
1 stop9h 03m
Delta
Mon 2/1612:12 pm
SDF
-
SJU
1 stop10h 46m
Delta
Deal found 1/29$326
This American Airlines deal was found by Cheapflights users on 1/28. 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 2/136:33 am
SJU
-
SDF
1 stop15h 53m
American Airlines
Sun 2/156:12 pm
SDF
-
SJU
1 stop10h 12m
American Airlines
Deal found 1/28$334
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 3/48:05 am
SJU
-
SDF
2 stops13h 04m
United Airlines
Tue 3/107:05 am
SDF
-
SJU
2 stops13h 21m
United Airlines
Deal found 1/28$336
This Southwest deal was found by Cheapflights users on 1/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/262:50 pm
SJU
-
SDF
1 stop8h 00m
Southwest
Mon 3/304:30 pm
SDF
-
SJU
1 stop6h 25m
Southwest
Deal found 1/28$346
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
Sat 2/141:50 pm
SJU
-
SDF
2 stops24h 36m
Multiple Airlines
Mon 2/161:19 pm
SDF
-
SJU
1 stop19h 58m
Multiple Airlines
Deal found 1/29$353

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$246
(United Airlines)

One-way from

$126
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$390
Provider with most accurate pricing for San Juan Luis Munoz Marin Intl-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Juan Luis Munoz Marin Intl-Louisville Intl flights.
Search Deals
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. 12% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Wed 3/4

8:40 am-9:11 pm

1 stop13h 31m

Louisville Intl

Mon 3/9

6:12 pm-4:24 am

1 stop10h 12m

$246

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 3/4

6:15 am-11:27 am

1 stop6h 12m

Louisville Intl

Tue 3/10

10:13 am-8:18 pm

1 stop10h 05m

$246

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 3/24

1:45 am-11:08 am

1 stop9h 23m

Louisville Intl

Mon 3/30

12:03 pm-10:03 pm

1 stop10h 00m

$293

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 2/27

6:00 am-12:21 pm

1 stop7h 21m

Louisville Intl

Fri 3/6

1:19 pm-11:13 pm

2 stops32h 54m

$306

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 2/27

6:00 am-12:21 pm

1 stop7h 21m

Louisville Intl

Fri 3/6

1:19 pm-11:09 pm

1 stop8h 50m

$315

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 3/24

1:45 am-11:08 am

1 stop9h 23m

Louisville Intl

Mon 3/30

9:13 pm-10:03 pm

2 stops24h 50m

$321

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 2/14

3:55 pm-11:58 pm

1 stop9h 03m

Louisville Intl

Mon 2/16

12:12 pm-11:58 pm

1 stop10h 46m

$326

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Fri 2/13

6:33 am-9:26 pm

1 stop15h 53m

Louisville Intl

Sun 2/15

6:12 pm-5:24 am

1 stop10h 12m

$334

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 3/4

8:05 am-8:09 pm

2 stops13h 04m

Louisville Intl

Tue 3/10

7:05 am-8:26 pm

2 stops13h 21m

$336

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 2/5

6:00 am-3:49 pm

1 stop10h 49m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 20 results
1
2

Compare providers for flights from Luis Munoz Marin Intl to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Luis Munoz Marin Intl to Louisville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Juan Luis Munoz Marin Intl Airport-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 January 23, 2026.

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 $113). Flying from San Juan Luis Munoz Marin Intl Airport to Louisville in June is currently the most expensive (average of $251). 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.

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 January 29, 2026.
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
4,267 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,126 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,207 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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?

    American Airlines and Delta can get you from San Juan Luis Munoz Marin Intl Airport to Louisville in just under 6h 12m. Your travel time can differ by up to 7h 19m. 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 American Airlines ($226) 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 62% 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 Delta. According to our data, you can fly for as low as $110. Users have also found prices from $112 and $138 on American Airlines and Southwest, 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 $113). Flying from San Juan Luis Munoz Marin Intl Airport to Louisville in June is currently the most expensive (average of $251). 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

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$138Average$375FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$175Average$335FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$232Average$494FlexibilityNo cancel feeOn-time69%

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