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Cheap flights from Louisville to San Juan from $113

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to San Juan departing on 1/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Louisville to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 4:36 pm
SDF
-
SJU
9h 36m1 stop
United Airlines Logo
8:10 am - 5:37 pm
SJU
-
SDF
10h 27m2 stops
$225United Airlines
Sun, Jan 25 - Thu, Jan 29
American Airlines Logo
7:52 pm - 10:48 am
SDF
-
SJU
14h 56m1 stop
American Airlines Logo
4:30 pm - 8:38 am
SJU
-
SDF
16h 08m1 stop
$229American Airlines
Sat, May 2 - Sat, May 9
American Airlines Logo
11:16 am - 11:56 pm
SDF
-
SJU
11h 40m1 stop
American Airlines Logo
5:20 pm - 10:50 am
SJU
-
SDF
18h 30m1 stop
$230American Airlines
Sat, Jan 24 - Sat, Jan 31
American Airlines Logo
10:31 am - 9:34 pm
SDF
-
SJU
10h 03m2 stops
American Airlines Logo
8:00 am - 6:09 pm
SJU
-
SDF
11h 09m2 stops
$231American Airlines
Tue, Feb 17 - Tue, Feb 24
United Airlines Logo
11:10 am - 10:22 pm
SDF
-
SJU
10h 12m2 stops
United Airlines Logo
2:05 am - 1:28 pm
SJU
-
SDF
12h 23m2 stops
$250United Airlines
Sun, Jan 25 - Fri, Jan 30
United Airlines Logo
6:00 am - 4:36 pm
SDF
-
SJU
9h 36m1 stop
United Airlines Logo
2:05 am - 1:17 pm
SJU
-
SDF
12h 12m2 stops
$258United Airlines
Sat, Feb 28 - Fri, Mar 6
American Airlines Logo
7:20 pm - 1:08 pm
SDF
-
SJU
16h 48m1 stop
American Airlines Logo
3:49 pm - 10:12 pm
SJU
-
SDF
7h 23m1 stop
$260American Airlines
Sun, Feb 1 - Mon, Feb 2
United Airlines Logo
5:35 am - 9:26 pm
SDF
-
SJU
14h 51m2 stops
United Airlines Logo
8:05 am - 2:47 pm
SJU
-
SDF
7h 42m1 stop
$262United Airlines
Sun, Mar 1 - Thu, Mar 5
American Airlines Logo
7:00 am - 5:11 pm
SDF
-
SJU
10h 11m2 stops
American Airlines Logo
5:00 am - 3:03 pm
SJU
-
SDF
10h 03m1 stop
$265American Airlines
Mon, Mar 16 - Fri, Mar 20
American Airlines Logo
5:00 am - 12:53 pm
SDF
-
SJU
7h 53m1 stop
American Airlines Logo
5:33 am - 5:12 pm
SJU
-
SDF
11h 39m1 stop
$266American Airlines
Wed, Mar 18 - Tue, Mar 24

American Airlines flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Louisville to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Jan 29
SDF6:00 amLouisville Intl
16h 59m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Feb 7
SJU8:20 amSan Juan Luis Munoz Marin Intl
8h 32m
1 stop
SDF3:52 pmLouisville Intl
$226
Find similar
American Airlines
May 2
SDF7:52 pmLouisville Intl
14h 56m
1 stop
SJU10:48 amSan Juan Luis Munoz Marin Intl
May 9
SJU4:30 pmSan Juan Luis Munoz Marin Intl
16h 08m
1 stop
SDF8:38 amLouisville Intl
$229
Find similar
American Airlines
Jan 24
SDF1:15 pmLouisville Intl
9h 41m
2 stops
SJU11:56 pmSan Juan Luis Munoz Marin Intl
Jan 31
SJU7:00 amSan Juan Luis Munoz Marin Intl
15h 16m
1 stop
SDF9:16 pmLouisville Intl
$230
Find similar

United Airlines flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Louisville to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Jan 25
SDF6:00 amLouisville Intl
9h 36m
1 stop
SJU4:36 pmSan Juan Luis Munoz Marin Intl
Jan 29
SJU8:10 amSan Juan Luis Munoz Marin Intl
10h 27m
2 stops
SDF5:37 pmLouisville Intl
$225
Find similar
United Airlines
Jan 25
SDF11:10 amLouisville Intl
10h 12m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 30
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 23m
2 stops
SDF1:28 pmLouisville Intl
$250
Find similar
United Airlines
Feb 28
SDF6:00 amLouisville Intl
9h 36m
1 stop
SJU4:36 pmSan Juan Luis Munoz Marin Intl
Mar 6
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 12m
2 stops
SDF1:17 pmLouisville Intl
$258
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated January 1, 2026.
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

Sun 1/25

6:00 am-4:36 pm

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:10 am-5:37 pm

2 stops10h 27m

$225

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 5/2

7:52 pm-10:48 am

1 stop14h 56m

San Juan Luis Munoz Marin Intl

Sat 5/9

4:30 pm-8:38 am

1 stop16h 08m

$229

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 1/24

11:16 am-11:56 pm

1 stop11h 40m

San Juan Luis Munoz Marin Intl

Sat 1/31

5:20 pm-10:50 am

1 stop18h 30m

$230

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/17

10:31 am-9:34 pm

2 stops10h 03m

San Juan Luis Munoz Marin Intl

Tue 2/24

8:00 am-6:09 pm

2 stops11h 09m

$231

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/25

11:10 am-10:22 pm

2 stops10h 12m

San Juan Luis Munoz Marin Intl

Fri 1/30

2:05 am-1:28 pm

2 stops12h 23m

$250

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 2/28

6:00 am-4:36 pm

1 stop9h 36m

San Juan Luis Munoz Marin Intl

Fri 3/6

2:05 am-1:17 pm

2 stops12h 12m

$258

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 2/1

7:20 pm-1:08 pm

1 stop16h 48m

San Juan Luis Munoz Marin Intl

Mon 2/2

3:49 pm-10:12 pm

1 stop7h 23m

$260

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 3/1

5:35 am-9:26 pm

2 stops14h 51m

San Juan Luis Munoz Marin Intl

Thu 3/5

8:05 am-2:47 pm

1 stop7h 42m

$262

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 3/16

7:00 am-5:11 pm

2 stops10h 11m

San Juan Luis Munoz Marin Intl

Fri 3/20

5:00 am-3:03 pm

1 stop10h 03m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 3/18

5:00 am-12:53 pm

1 stop7h 53m

San Juan Luis Munoz Marin Intl

Tue 3/24

5:33 am-5:12 pm

1 stop11h 39m

$266

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Louisville to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $315.

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

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $432 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Louisville for as low as $385 on momondo.

Can stopping save me money on Louisville to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 31% on your flight if you consider stops on a Louisville to San Juan Luis Munoz Marin Intl Airport flight.

How have Louisville to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of January 2026, prices for Louisville to San Juan Luis Munoz Marin Intl Airport flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to San Juan Luis Munoz Marin Intl Airport (SDF to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

6h 31m

Direct flights

None
The fastest flight from Louisville to San Juan Luis Munoz Marin Intl Airport takes 6h 31m
There are no direct flights from Louisville to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Louisville to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

  • How far is Louisville Intl to San Juan Luis Munoz Marin Intl by plane?

    San Juan Luis Munoz Marin Intl is 1811.4 mi away from Louisville Intl. A reasonable flight in good conditions will take 6h 31m.

  • When did momondo last update prices for flights from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How many operators does momondo search for flights from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Louisville to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Louisville to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $152Free CancellationRating
6.3
8,253 reviews
Search Spirit Airlines flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,013 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
American AirlinesPriceFrom $255Free CancellationRating
7.2
11,070 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,128 reviews
Search United Airlines flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Humacao
Caguas
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to San Juan?

Finding the right flight to San Juan from Louisville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Louisville to San Juan with flexible booking policies on momondo?

All flight searches from Louisville to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to San Juan right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Louisville to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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