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$108+ Cheap flights from San Juan 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SDF
Apr 30 — May 71
Wed 4/30
Wed 5/7
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Louisville Intl are usually found in January or February, booked 10 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from San Juan to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) 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 April 25, 2025.

Round-trip from

$245
(Delta)

One-way from

$108
(Delta)

Popular in

May

Cheapest in

January

Average price

$391
From San Juan to Louisville Intl
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One-way flight from San Juan to Louisville Intl
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Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San Juan to Louisville

Cheapest flights from San Juan to Louisville
Explore the most affordable flight options available from San Juan to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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 5/29:25 amSJU - SDF
1 stop12h 52mSpirit Airlines
Mon 5/55:05 amSDF - SJU
1 stop10h 30mSpirit Airlines
Deal found 4/24$192
This Delta deal was found by Cheapflights users on 4/24. 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.
Thu 8/212:39 pmSJU - SDF
1 stop7h 53mDelta
Mon 8/257:00 amSDF - SJU
1 stop6h 29mDelta
Deal found 4/24$245
This American Airlines deal was found by Cheapflights users on 4/24. 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 5/17:15 amSJU - SDF
1 stop16h 58mAmerican Airlines
Mon 5/56:07 amSDF - SJU
2 stops8h 53mAmerican Airlines
Deal found 4/24$281
This Mytrip deal was found by Cheapflights users on 4/24. 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.
Thu 5/18:45 pmSJU - SDF
2 stops20h 49mMultiple Airlines
Sun 5/49:04 amSDF - SJU
1 stop10h 36mMultiple Airlines
Deal found 4/24$300
This Southwest deal was found by Cheapflights users on 4/24. 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.
Wed 8/205:00 amSJU - SDF
1 stop6h 10mSouthwest
Mon 8/254:20 pmSDF - SJU
1 stop7h 10mSouthwest
Deal found 4/24$310
This United Airlines deal was found by Cheapflights users on 4/24. 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 8/191:05 amSJU - SDF
2 stops21h 19mUnited Airlines
Mon 8/257:15 amSDF - SJU
1 stop8h 27mUnited Airlines
Deal found 4/24$454

Cheapflights Fare Finder

Customize your flight search to find flights from San Juan 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 April 25, 2025.
Use the filters below to find and compare flights from San Juan to Louisville that are best for you.

Fly from

San Juan

Fly to

Louisville

Route

Depart

Return

Price

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 8/21

2:39 pm-10:32 pm

1 stop7h 53m

Louisville Intl

Mon 8/25

7:00 am-1:29 pm

1 stop6h 29m

$245

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Thu 8/28

2:05 pm-12:30 am

2 stops10h 25m

Louisville Intl

Sun 8/31

6:11 am-2:45 pm

2 stops8h 34m

$285

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 5/7

1:33 am-7:24 pm

1 stop17h 51m

Louisville Intl

Sun 5/11

11:23 am-12:54 am

1 stop13h 31m

$306

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 8/20

5:00 am-11:10 am

1 stop6h 10m

Louisville Intl

Mon 8/25

4:20 pm-11:30 pm

1 stop7h 10m

$310

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sun 5/18

1:59 am-6:42 pm

2 stops16h 43m

Louisville Intl

Mon 5/26

12:07 pm-11:31 am

1 stop23h 24m

$436

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Tue 8/19

1:05 am-10:24 pm

2 stops21h 19m

Louisville Intl

Mon 8/25

7:15 am-3:42 pm

1 stop8h 27m

$454

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Sat 8/30

2:15 pm-10:16 pm

1 stop8h 01m

$108

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 5/28

1:33 am-7:24 pm

1 stop17h 51m

$112

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Wed 8/20

3:08 pm-10:46 am

2 stops19h 38m

$169

San JuanLouisville

SJU - SDF

SJUSDF

San Juan Luis Munoz Marin Intl

Mon 5/5

1:05 am-1:25 pm

2 stops12h 20m

$183

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 13 results
1
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Best time to book a flight from San Juan to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from San Juan 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 to Louisville

How far ahead should I book a flight from San Juan to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Louisville. Price data was last updated on April 18, 2025.

Booking 10 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan to Louisville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Juan to Louisville?

Currently, January is the cheapest month in which you can book a flight from San Juan to Louisville (average of $299). Flying from San Juan 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 San Juan 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 April 25, 2025.

One of the essential ways to save on airfare from San Juan 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.

What is the cheapest day to fly from San Juan to Louisville?

Use this chart to determine the cheapest time to fly round-trip from San Juan to Louisville. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan to Louisville flight should consider departing on Thursday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 25, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from San Juan to Louisville have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,927 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,927 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,289 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,927 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from San Juan 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?

    If you book a flight to Louisville from San Juan, you will be flying to Louisville Intl, which is the city’s only airport. Louisville Intl (SDF) is located 5.3 mi from the center of Louisville. There are 0 flights from San Juan to Louisville Intl per day from 2 different airlines.

  • What are the cheapest airlines flying from San Juan to Louisville round-trip?

    Cheapflights users have booked flights from San Juan to Louisville round-trip from $245. Other airlines that can offer you cheap pricing are American Airlines, from $285, and Spirit Airlines, from $306. These flights start at 38% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Juan to Louisville one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $108. Users have also found prices from $112 and $169 on Spirit Airlines and American Airlines, respectively.

  • Can I find deals for flights from San Juan to Louisville that include hotel bookings?

    Yes. In addition to deals on San Juan to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Louisville?

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

  • Can I find deals for business class flights from San Juan to Louisville?

    Yes. Cheapflights offers flight deals from San Juan 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 to Louisville?

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

Book flights to San Juan if you plan to visit one of these locations
Jeffersonville
Corydon
Elizabethtown
Bardstown

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Top 2 airlines flying from San Juan to Louisville

Discover the top 2 airlines that operate flights from San Juan 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 April 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$215Average$416FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$305Average$455FlexibilityNo cancel feeOn-time71%

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