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Luis Munoz Marin Intl

$108+ Cheap flights from Louisville (SDF) to Luis Munoz Marin Intl (SJU)

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJU
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to San Juan Luis Munoz Marin Intl are usually found in August or January, booked 12 days in advance, depart on a Tuesday or Sunday and return on a Thursday

Cheap flight deals from Louisville to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Luis Munoz Marin Intl (SJU). 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 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$215
(Southwest)

One-way from

$108
(Southwest)

Popular in

March

Cheapest in

August

Average price

$455
Provider with most accurate pricing for Louisville Intl-San Juan Luis Munoz Marin Intl flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-San Juan Luis Munoz Marin Intl flights.
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From Louisville Intl to San Juan Luis Munoz Marin Intl
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One-way flight from Louisville Intl to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 8% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 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 Louisville to Luis Munoz Marin Intl

Cheapest flights from Louisville to Luis Munoz Marin Intl
Explore the most affordable flight options available from Louisville to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Southwest deal was found by Cheapflights users on 4/17. 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 5/811:15 amSDF - SJU
1 stop10h 50mSouthwest
Sun 5/117:05 amSJU - SDF
1 stop11h 30mSouthwest
Deal found 4/17$215
This FlightHub deal was found by Cheapflights users on 4/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/285:45 amSDF - SJU
1 stop9h 50mSpirit Airlines
Tue 5/69:25 amSJU - SDF
1 stop12h 52mSpirit Airlines
Deal found 4/17$237
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 10/132:59 pmSDF - SJU
1 stop7h 22mDelta
Tue 10/282:28 pmSJU - SDF
1 stop9h 28mDelta
Deal found 4/17$245
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 10/138:28 pmSDF - SJU
1 stop14h 22mAmerican Airlines
Tue 10/281:55 pmSJU - SDF
2 stops7h 59mAmerican Airlines
Deal found 4/17$285
This Mytrip deal was found by Cheapflights users on 4/17. 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.
Sat 5/172:07 pmSDF - SJU
3 stops20h 38mMultiple Airlines
Sat 5/248:12 pmSJU - SDF
2 stops18h 51mMultiple Airlines
Deal found 4/17$329
This United Airlines deal was found by Cheapflights users on 4/17. 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 4/306:45 amSDF - SJU
1 stop7h 00mUnited Airlines
Fri 5/91:05 amSJU - SDF
2 stops12h 20mUnited Airlines
Deal found 4/17$335

Cheapflights Fare Finder

Customize your flight search to find flights from Louisville to Luis Munoz Marin Intl 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 17, 2025.
Use the filters below to find and compare flights from Louisville to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Louisville

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 5/8

11:15 am-10:05 pm

1 stop10h 50m

San Juan Luis Munoz Marin Intl

Sun 5/11

7:05 am-6:35 pm

1 stop11h 30m

$215

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 4/28

5:45 am-3:35 pm

1 stop9h 50m

San Juan Luis Munoz Marin Intl

Tue 5/6

9:25 am-10:17 pm

1 stop12h 52m

$237

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 10/13

2:59 pm-10:21 pm

1 stop7h 22m

San Juan Luis Munoz Marin Intl

Tue 10/28

2:28 pm-11:56 pm

1 stop9h 28m

$245

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 4/29

6:00 am-2:27 pm

1 stop8h 27m

San Juan Luis Munoz Marin Intl

Tue 5/6

5:25 am-5:55 pm

1 stop12h 30m

$275

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 5/17

2:07 pm-10:45 am

3 stops20h 38m

San Juan Luis Munoz Marin Intl

Sat 5/24

8:12 pm-3:03 pm

2 stops18h 51m

$329

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 4/30

6:45 am-1:45 pm

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Fri 5/9

1:05 am-1:25 pm

2 stops12h 20m

$335

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 5/11

5:10 pm-11:40 pm

1 stop6h 30m

$108

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/25

6:00 am-11:51 am

1 stop5h 51m

$113

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/25

2:37 pm-11:10 am

2 stops20h 33m

$128

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 4/29

7:03 am-3:40 pm

1 stop8h 37m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 13 results
1
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Compare providers for flights from Louisville to Luis Munoz Marin Intl

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 Louisville to Luis Munoz Marin Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FareScanPrice Accuracy-Trust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Louisville-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Louisville-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Louisville-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Louisville-San Juan Luis Munoz Marin Intl Airport 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 Louisville to Luis Munoz Marin Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Luis Munoz Marin Intl. Price data was last updated on April 11, 2025.

The price you pay for your flight from Louisville to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 12 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 Louisville to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Louisville to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Louisville to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $336). 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 SDF to SJU?

Find hourly flight availability from Louisville to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

It’s optimal to fly from Louisville to San Juan Luis Munoz Marin Intl Airport in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Louisville to San Juan Luis Munoz Marin Intl Airport?

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

Travelers seeking maximum savings on their Louisville to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan Luis Munoz Marin Intl Airport when rainfall is around 2.2 in.

Temperature in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated April 17, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from Louisville to San Juan by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,916 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,667 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
7,926 reviews
Southwest
8.0
Very good
4,280 reviews

Boarding

8.2

Entertainment

7.6

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Luis Munoz Marin Intl. 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 from for flights from Louisville to San Juan Luis Munoz Marin Intl?

    For a flight from Louisville to San Juan Luis Munoz Marin Intl, you will be flying from 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 outbound flights to San Juan Luis Munoz Marin Intl per day. 5 airlines have flights to San Juan Luis Munoz Marin Intl from Louisville Intl on a regular basis.

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

    According to our current data, Southwest ($215), Spirit Airlines ($237), and Delta ($275) offers the cheapest pricing from Louisville to San Juan Luis Munoz Marin Intl Airport. Southwest is priced at 50% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Louisville to San Juan Luis Munoz Marin Intl Airport are Southwest ($108), United Airlines ($138), and Spirit Airlines ($144).

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Louisville to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Louisville to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $336). 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

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Top 5 airlines flying from Louisville to Luis Munoz Marin Intl

Discover the top 5 airlines that operate flights from Louisville to Luis Munoz Marin Intl. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$179Average$295FlexibilityNo cancel feeOn-time65%
DeltaCheapest$254Average$372FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$273Average$477FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$564FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$326Average$585FlexibilityNo cancel feeOn-time63%

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