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Cheap flights from Louisville to San Juan from $158

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 8/1. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
10:50 am - 6:05 pm
SDF
-
SJU
7h 15m
1 stop
Southwest Logo
6:00 am - 1:35 pm
SJU
-
SDF
7h 35m
1 stop
$220Southwest
Sat, Aug 15 - Thu, Aug 20
United Airlines Logo
7:10 am - 8:38 pm
SDF
-
SJU
13h 28m
2 stops
United Airlines Logo
2:20 pm - 10:15 pm
SJU
-
SDF
7h 55m
1 stop
$247United Airlines
Thu, Aug 27 - Sun, Aug 30
United Airlines Logo
7:10 am - 2:44 pm
SDF
-
SJU
7h 34m
1 stop
United Airlines Logo
2:20 pm - 10:15 pm
SJU
-
SDF
7h 55m
1 stop
$249United Airlines
Wed, Sep 9 - Sun, Sep 13
American Airlines Logo
7:27 pm - 11:00 am
SDF
-
SJU
15h 33m
2 stops
American Airlines Logo
2:58 pm - 11:22 pm
SJU
-
SDF
8h 24m
2 stops
$268American Airlines
Fri, Sep 25 - Wed, Sep 30
American Airlines Logo
7:27 pm - 11:00 am
SDF
-
SJU
15h 33m
2 stops
American Airlines Logo
2:22 pm - 10:55 pm
SJU
-
SDF
8h 33m
1 stop
$273American Airlines
Fri, Sep 25 - Wed, Sep 30
Multiple Airlines Logo
9:10 pm - 4:11 pm
SDF
-
SJU
19h 01m
1 stop
Multiple Airlines Logo
6:00 am - 8:20 pm
SJU
-
SDF
14h 20m
1 stop
$290Multiple Airlines
Mon, Aug 10 - Fri, Aug 14
United Airlines Logo
11:00 am - 11:50 pm
SDF
-
SJU
12h 50m
2 stops
United Airlines Logo
2:20 pm - 10:15 pm
SJU
-
SDF
7h 55m
1 stop
$291United Airlines
Sat, Sep 12 - Fri, Sep 18
Southwest Logo
3:20 pm - 11:50 pm
SDF
-
SJU
8h 30m
2 stops
Southwest Logo
6:00 am - 1:35 pm
SJU
-
SDF
7h 35m
1 stop
$292Southwest
Thu, Sep 24 - Mon, Sep 28
American Airlines Logo
7:31 am - 10:24 pm
SDF
-
SJU
14h 53m
1 stop
American Airlines Logo
2:33 pm - 10:59 pm
SJU
-
SDF
8h 26m
1 stop
$293American Airlines
Fri, Aug 28 - Fri, Sep 4
Multiple Airlines Logo
8:48 pm - 4:05 pm
SDF
-
SJU
19h 17m
1 stop
Multiple Airlines Logo
6:00 am - 8:20 pm
SJU
-
SDF
14h 20m
1 stop
$296Multiple Airlines
Mon, Aug 3 - Fri, Aug 7

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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
Sep 25
SDF7:27 pmLouisville Intl
15h 33m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 30
SJU2:58 pmSan Juan Luis Munoz Marin Intl
8h 24m
2 stops
SDF11:22 pmLouisville Intl
$268
American Airlines
Sep 25
SDF7:27 pmLouisville Intl
15h 33m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 30
SJU2:22 pmSan Juan Luis Munoz Marin Intl
8h 33m
1 stop
SDF10:55 pmLouisville Intl
$273
American Airlines
Aug 28
SDF7:31 amLouisville Intl
14h 53m
1 stop
SJU10:24 pmSan Juan Luis Munoz Marin Intl
Sep 4
SJU2:33 pmSan Juan Luis Munoz Marin Intl
8h 26m
1 stop
SDF10:59 pmLouisville Intl
$293

Delta flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Louisville to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
Aug 4
SDF6:00 amLouisville Intl
5h 46m
1 stop
SJU11:46 amSan Juan Luis Munoz Marin Intl
Aug 12
SJU7:00 amSan Juan Luis Munoz Marin Intl
7h 18m
1 stop
SDF2:18 pmLouisville Intl
$316
Delta
Aug 10
SDF8:05 amLouisville Intl
8h 33m
1 stop
SJU4:38 pmSan Juan Luis Munoz Marin Intl
Aug 14
SJU5:49 pmSan Juan Luis Munoz Marin Intl
6h 45m
1 stop
SDF12:34 amLouisville Intl
$326
Delta
Aug 1
SDF11:17 amLouisville Intl
9h 28m
1 stop
SJU8:45 pmSan Juan Luis Munoz Marin Intl
Aug 11
SJU2:59 pmSan Juan Luis Munoz Marin Intl
6h 34m
1 stop
SDF9:33 pmLouisville Intl
$363

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 June 12, 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

Cheapest round-trip
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 8/15

10:50 am-6:05 pm

1 stop7h 15m

San Juan Luis Munoz Marin Intl

Thu 8/20

6:00 am-1:35 pm

1 stop7h 35m

$220

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 8/27

7:10 am-8:38 pm

2 stops13h 28m

San Juan Luis Munoz Marin Intl

Sun 8/30

2:20 pm-10:15 pm

1 stop7h 55m

$247

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/9

7:10 am-2:44 pm

1 stop7h 34m

San Juan Luis Munoz Marin Intl

Sun 9/13

2:20 pm-10:15 pm

1 stop7h 55m

$249

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/25

7:27 pm-11:00 am

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Wed 9/30

2:58 pm-11:22 pm

2 stops8h 24m

$268

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/25

7:27 pm-11:00 am

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Wed 9/30

2:22 pm-10:55 pm

1 stop8h 33m

$273

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

9:10 pm-4:11 pm

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Fri 8/14

6:00 am-8:20 pm

1 stop14h 20m

$290

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/12

11:00 am-11:50 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

Fri 9/18

2:20 pm-10:15 pm

1 stop7h 55m

$291

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 9/24

3:20 pm-11:50 pm

2 stops8h 30m

San Juan Luis Munoz Marin Intl

Mon 9/28

6:00 am-1:35 pm

1 stop7h 35m

$292

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/28

7:31 am-10:24 pm

1 stop14h 53m

San Juan Luis Munoz Marin Intl

Fri 9/4

2:33 pm-10:59 pm

1 stop8h 26m

$293

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/3

8:48 pm-4:05 pm

1 stop19h 17m

San Juan Luis Munoz Marin Intl

Fri 8/7

6:00 am-8:20 pm

1 stop14h 20m

$296

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Louisville and San Juan Luis Munoz Marin Intl Airport?

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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $345.

How far in advance should I book a flight from Louisville 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 $426 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 $359 on momondo.

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

You could potentially save up to 28% 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 June 2026, prices for Louisville to San Juan Luis Munoz Marin Intl Airport flights are approximately 24% 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

5h 50m

Direct flights

None
The fastest flight from Louisville to San Juan Luis Munoz Marin Intl Airport takes 5h 50m
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

Frequently asked questions about flying from Louisville to San Juan Luis Munoz Marin Intl Airport

  • 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 5h 50m.

  • 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
DeltaPriceFrom $198Free CancellationRating
7.9
8,400 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,234 reviews
Search Southwest flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,644 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,810 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
Rio Grande
Humacao
Caguas
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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