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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 5/24. 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.
Multiple Airlines Logo
10:33 am - 3:55 pm
SDF
-
SJU
29h 22m
1 stop
Multiple Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$311Multiple Airlines
Mon, May 25 - Thu, May 28
Multiple Airlines Logo
8:48 pm - 12:47 am
SDF
-
SJU
27h 59m
2 stops
Multiple Airlines Logo
6:00 am - 8:20 pm
SJU
-
SDF
14h 20m
1 stop
$314Multiple Airlines
Mon, Jul 20 - Fri, Aug 7
Delta Logo
6:00 am - 11:46 am
SDF
-
SJU
5h 46m
1 stop
Delta Logo
5:56 pm - 12:26 am
SJU
-
SDF
6h 30m
1 stop
$316Delta
Tue, Jul 21 - Thu, Aug 6
American Airlines Logo
8:15 am - 10:45 pm
SDF
-
SJU
14h 30m
1 stop
American Airlines Logo
6:20 am - 11:08 pm
SJU
-
SDF
16h 48m
1 stop
$321American Airlines
Wed, May 27 - Wed, Jun 3
American Airlines Logo
8:55 am - 11:50 pm
SDF
-
SJU
14h 55m
1 stop
American Airlines Logo
6:00 am - 5:51 pm
SJU
-
SDF
11h 51m
1 stop
$326American Airlines
Sun, Oct 11 - Sat, Oct 17
American Airlines Logo
7:31 am - 10:24 pm
SDF
-
SJU
14h 53m
1 stop
American Airlines Logo
6:51 am - 11:00 pm
SJU
-
SDF
16h 09m
1 stop
$331American Airlines
Wed, Aug 5 - Fri, Aug 14
American Airlines Logo
7:37 am - 10:57 pm
SDF
-
SJU
15h 20m
1 stop
American Airlines Logo
7:00 am - 11:04 pm
SJU
-
SDF
16h 04m
1 stop
$336American Airlines
Thu, Jul 30 - Tue, Aug 4
Multiple Airlines Logo
8:06 pm - 4:01 am
SDF
-
SJU
31h 55m
2 stops
Multiple Airlines Logo
6:00 am - 11:21 am
SJU
-
SDF
29h 21m
1 stop
$338Multiple Airlines
Wed, Jun 3 - Thu, Jun 11
United Airlines Logo
6:00 am - 12:34 pm
SDF
-
SJU
6h 34m
1 stop
United Airlines Logo
1:25 pm - 11:15 pm
SJU
-
SDF
9h 50m
1 stop
$346United Airlines
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
8:06 pm - 2:08 am
SDF
-
SJU
30h 02m
2 stops
Multiple Airlines Logo
2:05 pm - 11:21 am
SJU
-
SDF
21h 16m
1 stop
$355Multiple Airlines
Sat, Jun 6 - Thu, Jun 11

Delta flights from Louisville to San Juan

Our best Delta deals on Louisville to San Juan flight tickets
Delta
Jul 21
SDF6:00 amLouisville Intl
5h 46m
1 stop
SJU11:46 amSan Juan Luis Munoz Marin Intl
Aug 4
SJU5:56 pmSan Juan Luis Munoz Marin Intl
6h 30m
1 stop
SDF12:26 amLouisville Intl
$316
Delta
May 17
SDF6:00 amLouisville Intl
6h 01m
1 stop
SJU12:01 pmSan Juan Luis Munoz Marin Intl
May 30
SJU6:15 amSan Juan Luis Munoz Marin Intl
10h 46m
1 stop
SDF5:01 pmLouisville Intl
$405
Delta
Jul 20
SDF6:00 amLouisville Intl
5h 46m
1 stop
SJU11:46 amSan Juan Luis Munoz Marin Intl
Aug 3
SJU12:56 pmSan Juan Luis Munoz Marin Intl
8h 22m
1 stop
SDF9:18 pmLouisville Intl
$408

United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
Oct 14
SDF6:00 amLouisville Intl
6h 34m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
Oct 21
SJU1:25 pmSan Juan Luis Munoz Marin Intl
9h 50m
1 stop
SDF11:15 pmLouisville Intl
$346
United Airlines
Sep 24
SDF6:30 amLouisville Intl
7h 15m
1 stop
SJU1:45 pmSan Juan Luis Munoz Marin Intl
Oct 2
SJU1:00 amSan Juan Luis Munoz Marin Intl
12h 00m
2 stops
SDF1:00 pmLouisville Intl
$365
United Airlines
May 19
SDF6:00 amLouisville Intl
9h 42m
1 stop
SJU3:42 pmSan Juan Luis Munoz Marin Intl
May 26
SJU2:05 amSan Juan Luis Munoz Marin Intl
9h 49m
1 stop
SDF11:54 amLouisville Intl
$366

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to San Juan 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 May 4, 2026.
Use the filters below to find and compare flights from Louisville to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 5/25

10:33 am-3:55 pm

1 stop29h 22m

San Juan Luis Munoz Marin Intl

Thu 5/28

8:04 pm-9:28 am

1 stop13h 24m

$311

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 7/20

8:48 pm-12:47 am

2 stops27h 59m

San Juan Luis Munoz Marin Intl

Fri 8/7

6:00 am-8:20 pm

1 stop14h 20m

$314
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 7/21

6:00 am-11:46 am

1 stop5h 46m

San Juan Luis Munoz Marin Intl

Thu 8/6

5:56 pm-12:26 am

1 stop6h 30m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 5/27

8:15 am-10:45 pm

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Wed 6/3

6:20 am-11:08 pm

1 stop16h 48m

$321

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 10/11

8:55 am-11:50 pm

1 stop14h 55m

San Juan Luis Munoz Marin Intl

Sat 10/17

6:00 am-5:51 pm

1 stop11h 51m

$326

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 8/5

7:31 am-10:24 pm

1 stop14h 53m

San Juan Luis Munoz Marin Intl

Fri 8/14

6:51 am-11:00 pm

1 stop16h 09m

$331

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 7/30

7:37 am-10:57 pm

1 stop15h 20m

San Juan Luis Munoz Marin Intl

Tue 8/4

7:00 am-11:04 pm

1 stop16h 04m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 6/3

8:06 pm-4:01 am

2 stops31h 55m

San Juan Luis Munoz Marin Intl

Thu 6/11

6:00 am-11:21 am

1 stop29h 21m

$338

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 10/14

6:00 am-12:34 pm

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Wed 10/21

1:25 pm-11:15 pm

1 stop9h 50m

$346

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 6/6

8:06 pm-2:08 am

2 stops30h 02m

San Juan Luis Munoz Marin Intl

Thu 6/11

2:05 pm-11:21 am

1 stop21h 16m

$355

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

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?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in November, then January is your next best option. Flight prices from Louisville to San Juan during January average around $113.

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

You are more likely to see cheaper flights to San Juan from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan 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 from Louisville for as low as $377 on momondo.

Cheap Louisville to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to San Juan

Fastest flight time

6h 20m

Direct flights

None
The fastest flight from Louisville to San Juan takes 6h 20m
There are no direct flights from Louisville to San Juan. There are no popular flight routes from Louisville to San Juan.
Search flight deals

Frequently asked questions about flying from Louisville to San Juan

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

    San Juan is 1805.8 mi away from Louisville Intl. Typically, this will take 6h 20m by plane in normal conditions.

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

    Prices for flights from Louisville Intl Airport to San Juan are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The travel and health documents you'll need for your trip to San Juan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to San Juan

Compare and see reviews for airlines that fly from Louisville to San Juan with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $176Free CancellationRating
6.3
8,632 reviews
Search Spirit Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,460 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,307 reviews
Search Southwest flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,671 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to San Juan for you.

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

Yes. All flights to San Juan from Louisville on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Louisville to San Juan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Louisville to San Juan flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport