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.

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).

What are the most popular airlines that fly from Louisville to San Juan Luis Munoz Marin Intl Airport?

Before booking your flight from Louisville to San Juan Luis Munoz Marin Intl Airport check out the most popular airlines for this route: American Airlines, Delta or Spirit Airlines.

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

Flights from Louisville to San Juan Luis Munoz Marin Intl Airport lean towards being more expensive in March. Prices are generally better when you fly from Louisville to San Juan Luis Munoz Marin Intl Airport in January, with the cheapest ticket starting at $247.

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.

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.

$103+ Flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Q: What is the cheapest day to fly round-trip from Louisville to San Juan Luis Munoz Marin Intl Airport?

Flying to your destination on a Thursday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to San Juan Luis Munoz Marin Intl Airport. Check prices with Cheapflights to find a great deal for your trip.

Q: How far in advance should I book a flight from Louisville to San Juan Luis Munoz Marin Intl Airport?

Find a great deal and save up to 53% by booking at least 13 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Louisville to San Juan Luis Munoz Marin Intl Airport within the next two weeks, with the cheapest ticket starting at $265.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Louisville to Luis Munoz Marin Intl 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 Louisville Intl to San Juan Luis Munoz Marin Intl are usually found in January or October, 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

Round-trip from	$205 (Southwest)
One-way from	$103 (Southwest)
Popular in	March
Cheapest in	January
Average price	$461

From Louisville Intl to San Juan Luis Munoz Marin Intl

Search Deals

One-way flight from Louisville Intl to San Juan Luis Munoz Marin Intl

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($26 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

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 July 18, 2025.

Sat 10/43:10 pmSDF - SJU

1 stop8h 35mSouthwest

Sat 10/115:45 amSJU - SDF

1 stop7h 05mSouthwest

Deal found 7/16

$205

Sun 9/78:40 pmSDF - SJU

1 stop14h 31mSpirit Airlines

Thu 9/1112:06 pmSJU - SDF

1 stop7h 29mSpirit Airlines

Deal found 7/17

$213

Wed 9/1712:48 pmSDF - SJU

1 stop9h 12mDelta

Wed 9/245:41 pmSJU - SDF

1 stop6h 11mDelta

Deal found 7/16

$215

Mon 10/137:33 amSDF - SJU

1 stop16h 32mAmerican Airlines

Tue 10/285:30 amSJU - SDF

2 stops13h 02mAmerican Airlines

Deal found 7/17

$230

Fri 8/1512:24 pmSDF - SJU

1 stop9h 24mMultiple Airlines

Fri 8/224:12 pmSJU - SDF

2 stops26h 41mMultiple Airlines

Deal found 7/16

$276

Best flights from Louisville to Luis Munoz Marin Intl
Discover carefully curated flight deals from Louisville to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2025.

Sat 10/43:10 pmSDF - SJU

1 stop8h 35mSouthwest

Sat 10/115:45 amSJU - SDF

1 stop7h 05mSouthwest

Deal found 7/16

$205

Sun 9/78:40 pmSDF - SJU

1 stop14h 31mSpirit Airlines

Thu 9/1112:06 pmSJU - SDF

1 stop7h 29mSpirit Airlines

Deal found 7/17

$213

Wed 9/1712:48 pmSDF - SJU

1 stop9h 12mDelta

Wed 9/245:41 pmSJU - SDF

1 stop6h 11mDelta

Deal found 7/16

$215

Mon 10/137:33 amSDF - SJU

1 stop16h 32mAmerican Airlines

Tue 10/285:30 amSJU - SDF

2 stops13h 02mAmerican Airlines

Deal found 7/17

$230

Fri 8/1512:24 pmSDF - SJU

1 stop9h 24mMultiple Airlines

Fri 8/224:12 pmSJU - SDF

2 stops26h 41mMultiple Airlines

Deal found 7/16

$276

Sat 10/46:15 amSDF - SJU

1 stop7h 30mUnited Airlines

Sat 10/111:30 pmSJU - SDF

1 stop7h 30mUnited Airlines

Deal found 7/17

$310

Last-minute flights from Louisville to Luis Munoz Marin Intl
Discover last-minute flight deals from Louisville to Luis Munoz Marin Intl. Data last updated July 18, 2025 and is based on user searches.

Thu 7/243:21 pmSDF - SJU

1 stop7h 02mDelta

Sat 7/262:36 pmSJU - SDF

1 stop6h 44mDelta

Deal found 7/17

$715

Sat 7/264:35 pmSDF - SJU

1 stop7h 35mSouthwest

Sat 8/26:00 amSJU - SDF

1 stop13h 05mSouthwest

Deal found 7/15

$285

Sat 7/267:40 amSDF - SJU

1 stop15h 10mAmerican Airlines

Wed 7/308:30 amSJU - SDF

1 stop13h 31mAmerican Airlines

Deal found 7/16

$310

Sat 7/262:10 pmSDF - SJU

1 stop9h 44mUnited Airlines

Fri 8/11:05 amSJU - SDF

2 stops12h 19mUnited Airlines

Deal found 7/16

$515

Mon 7/282:50 pmSDF - SJU

2 stops21h 12mSpirit Airlines

Thu 7/3110:14 pmSJU - SDF

1 stop20h 54mSpirit Airlines

Deal found 7/16

$360

Mon 7/2812:16 pmSDF - SJU

3 stops26h 29mMultiple Airlines

Wed 7/303:50 pmSJU - SDF

2 stops19h 37mMultiple Airlines

Deal found 7/16

$413

Fri 8/157:58 pmSDF - SJU

2 stops19h 12mSpirit Airlines

Fri 8/224:12 pmSJU - SDF

2 stops26h 41mSpirit Airlines

Deal found 7/16

$254

Fri 8/1512:24 pmSDF - SJU

1 stop9h 24mMultiple Airlines

Fri 8/224:12 pmSJU - SDF

2 stops26h 41mMultiple Airlines

Deal found 7/16

$276

One-way flights from Louisville to Luis Munoz Marin Intl
Search for one-way flight options from Louisville to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated July 18, 2025.

Sat 10/48:15 amSDF - SJU

1 stop8h 25mSouthwest

Deal found 7/16

$103

Sat 10/410:55 amSDF - SJU

2 stops13h 02mUnited Airlines

Deal found 7/16

$118

Tue 8/263:11 pmSDF - SJU

1 stop6h 56mDelta

Deal found 7/15

$133

Sat 7/266:00 amSDF - SJU

1 stop16h 55mAmerican Airlines

Deal found 7/17

$143

Sat 8/28:33 pmSDF - SJU

2 stops25h 17mSpirit Airlines

Deal found 7/17

$155

Sat 8/210:54 amSDF - SJU

3 stops34h 15mMultiple Airlines

Deal found 7/17

$190

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 10/4

3:10 pm-11:45 pm

1 stop8h 35m

San Juan Luis Munoz Marin Intl

Sat 10/11

5:45 am-12:50 pm

1 stop7h 05m

$205

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 9/7

8:40 pm-11:11 am

1 stop14h 31m

San Juan Luis Munoz Marin Intl

Thu 9/11

12:06 pm-7:35 pm

1 stop7h 29m

$213

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/17

12:48 pm-10:00 pm

1 stop9h 12m

San Juan Luis Munoz Marin Intl

Wed 9/24

5:41 pm-11:52 pm

1 stop6h 11m

$215

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 10/13

7:33 am-12:05 am

1 stop16h 32m

San Juan Luis Munoz Marin Intl

Tue 10/28

5:30 am-6:32 pm

2 stops13h 02m

$230

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/15

12:24 pm-9:48 pm

1 stop9h 24m

San Juan Luis Munoz Marin Intl

Fri 8/22

4:12 pm-6:53 pm

2 stops26h 41m

$276

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 10/4

6:15 am-1:45 pm

1 stop7h 30m

San Juan Luis Munoz Marin Intl

Sat 10/11

1:30 pm-9:00 pm

1 stop7h 30m

$310

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 10/4

8:15 am-4:40 pm

1 stop8h 25m

$103

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 10/4

10:55 am-11:57 pm

2 stops13h 02m

$118

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 8/26

3:11 pm-10:07 pm

1 stop6h 56m

$133

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 7/26

6:00 am-10:55 pm

1 stop16h 55m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 12 results

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?

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 June is currently the most expensive (average of $339). 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?

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?

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.

How much does it cost to fly round-trip from Louisville to San Juan Luis Munoz Marin Intl Airport?

Reviews of airlines servicing Luis Munoz Marin Intl

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Louisville to San Juan Luis Munoz Marin Intl Airport to help guide your decision. 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

4,238 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,238 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,958 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,864 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Spirit Airlines

6.3

Okay

8,035 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

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 ($205), Spirit Airlines ($213), and Delta ($215) offers the cheapest pricing from Louisville to San Juan Luis Munoz Marin Intl Airport. Southwest is priced at 53% 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 ($103), United Airlines ($118), and Delta ($133).
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 June is currently the most expensive (average of $339). 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

Dorado

Fajardo

Luquillo

Rio Grande

Humacao

Bayamón

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Louisville to Luis Munoz Marin Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$152	Average$284	FlexibilityNo cancel fee	On-time65%
Southwest	Cheapest$225	Average$501	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$226	Average$402	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$275	Average$559	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$280	Average$469	FlexibilityNo cancel fee	On-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.

$103+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Louisville Intl to San Juan Luis Munoz Marin Intl are usually found in January or October, 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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Louisville to Luis Munoz Marin Intl

Cheapest flights from Louisville to Luis Munoz Marin IntlExplore 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 July 18, 2025.

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 July 18, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to San Juan Luis Munoz Marin Intl Airport that are best for you.

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.

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 July 11, 2025.

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

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 July 18, 2025.

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.

How much does it cost to fly round-trip from Louisville to San Juan Luis Munoz Marin Intl Airport?

Reviews of airlines servicing Luis Munoz Marin Intl

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?

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

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

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

How can I 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?

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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

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 Louisville to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Louisville to Luis Munoz Marin Intl

100% Free

Book with Flexibility

Travel Smart

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 July 18, 2025.