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Cheap flights from Louisville to Puerto Rico from $123

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 Puerto Rico departing on 4/11. 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 Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
8:10 am - 4:23 pm
SDF
-
SJU
8h 13m
1 stop
Delta Logo
7:30 am - 5:40 pm
SJU
-
SDF
10h 10m
1 stop
$246Delta
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
9:30 am - 3:31 pm
SDF
-
SJU
29h 01m
1 stop
Multiple Airlines Logo
4:36 pm - 8:40 am
SJU
-
SDF
17h 04m
1 stop
$262Multiple Airlines
Mon, Feb 23 - Thu, Feb 26
Spirit Airlines Logo
3:33 pm - 3:31 pm
SDF
-
SJU
22h 58m
1 stop
Spirit Airlines Logo
7:05 pm - 12:21 pm
SJU
-
SDF
17h 16m
1 stop
$283Spirit Airlines
Sun, Mar 1 - Sun, Mar 8
Spirit Airlines Logo
12:42 pm - 6:55 pm
SDF
-
SJU
6h 13m
1 stop
Spirit Airlines Logo
1:45 am - 11:14 am
SJU
-
SDF
9h 29m
1 stop
$285Spirit Airlines
Tue, Mar 31 - Thu, Apr 2
Delta Logo
3:33 pm - 11:58 pm
SDF
-
SJU
7h 25m
1 stop
Delta Logo
6:37 pm - 11:58 pm
SJU
-
SDF
6h 21m
1 stop
$286Delta
Tue, Feb 24 - Wed, Mar 4
Spirit Airlines Logo
12:42 pm - 6:55 pm
SDF
-
SJU
6h 13m
1 stop
Spirit Airlines Logo
7:54 pm - 11:47 am
SJU
-
SDF
15h 53m
1 stop
$288Spirit Airlines
Tue, Apr 7 - Mon, Apr 13
Multiple Airlines Logo
9:30 am - 2:22 pm
SDF
-
SJU
27h 52m
2 stops
Multiple Airlines Logo
4:36 pm - 8:40 am
SJU
-
SDF
17h 04m
1 stop
$293Multiple Airlines
Mon, Feb 23 - Thu, Feb 26
Multiple Airlines Logo
2:26 pm - 9:54 am
SDF
-
SJU
18h 28m
2 stops
Multiple Airlines Logo
4:36 pm - 8:40 am
SJU
-
SDF
17h 04m
1 stop
$296Multiple Airlines
Sun, Feb 22 - Thu, Feb 26
United Airlines Logo
6:00 am - 4:13 pm
SDF
-
CPX
10h 13m
2 stops
United Airlines Logo
10:30 am - 11:12 pm
CPX
-
SDF
12h 42m
2 stops
$1,961United Airlines
Sun, Apr 19 - Thu, Apr 23
United Airlines Logo
6:00 am - 4:13 pm
SDF
-
CPX
10h 13m
2 stops
United Airlines Logo
10:30 am - 11:44 pm
CPX
-
SDF
13h 14m
2 stops
$2,277United Airlines
Sun, Apr 5 - Sat, Apr 11

American Airlines flights from Louisville to Puerto Rico

Our best American Airlines deals on Louisville to Puerto Rico flight tickets
American Airlines
Apr 30
SDF1:19 pmLouisville Intl
8h 46m
1 stop
SJU10:05 pmSan Juan Luis Munoz Marin Intl
May 2
SJU6:02 pmSan Juan Luis Munoz Marin Intl
15h 43m
1 stop
SDF9:45 amLouisville Intl
$256
American Airlines
Feb 24
SDF10:49 amLouisville Intl
11h 42m
1 stop
SJU11:31 pmSan Juan Luis Munoz Marin Intl
Feb 25
SJU7:33 amSan Juan Luis Munoz Marin Intl
11h 04m
1 stop
SDF5:37 pmLouisville Intl
$321
American Airlines
Feb 27
SDF8:02 pmLouisville Intl
14h 38m
1 stop
SJU11:40 amSan Juan Luis Munoz Marin Intl
Mar 3
SJU8:40 amSan Juan Luis Munoz Marin Intl
10h 29m
1 stop
SDF6:09 pmLouisville Intl
$326

Spirit Airlines flights from Louisville to Puerto Rico

Our best Spirit Airlines deals on Louisville to Puerto Rico flight tickets
Spirit Airlines
Mar 31
SDF12:42 pmLouisville Intl
6h 13m
1 stop
SJU6:55 pmSan Juan Luis Munoz Marin Intl
Apr 2
SJU1:45 amSan Juan Luis Munoz Marin Intl
9h 29m
1 stop
SDF11:14 amLouisville Intl
$285
Spirit Airlines
Apr 7
SDF12:42 pmLouisville Intl
6h 13m
1 stop
SJU6:55 pmSan Juan Luis Munoz Marin Intl
Apr 13
SJU7:54 pmSan Juan Luis Munoz Marin Intl
15h 53m
1 stop
SDF11:47 amLouisville Intl
$288
Spirit Airlines
Apr 17
SDF12:33 pmLouisville Intl
9h 36m
1 stop
SJU10:09 pmSan Juan Luis Munoz Marin Intl
Apr 20
SJU9:49 pmSan Juan Luis Munoz Marin Intl
16h 49m
1 stop
SDF2:38 pmLouisville Intl
$298

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Puerto Rico 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 February 10, 2026.
Use the filters below to find and compare flights from Louisville to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/30

8:10 am-4:23 pm

1 stop8h 13m

San Juan Luis Munoz Marin Intl

Sun 5/3

7:30 am-5:40 pm

1 stop10h 10m

$246

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/23

9:30 am-3:31 pm

1 stop29h 01m

San Juan Luis Munoz Marin Intl

Thu 2/26

4:36 pm-8:40 am

1 stop17h 04m

$262

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 3/1

3:33 pm-3:31 pm

1 stop22h 58m

San Juan Luis Munoz Marin Intl

Sun 3/8

7:05 pm-12:21 pm

1 stop17h 16m

$283

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 3/31

12:42 pm-6:55 pm

1 stop6h 13m

San Juan Luis Munoz Marin Intl

Thu 4/2

1:45 am-11:14 am

1 stop9h 29m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

3:33 pm-11:58 pm

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:37 pm-11:58 pm

1 stop6h 21m

$286

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 4/7

12:42 pm-6:55 pm

1 stop6h 13m

San Juan Luis Munoz Marin Intl

Mon 4/13

7:54 pm-11:47 am

1 stop15h 53m

$288

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/23

9:30 am-2:22 pm

2 stops27h 52m

San Juan Luis Munoz Marin Intl

Thu 2/26

4:36 pm-8:40 am

1 stop17h 04m

$293

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 2/22

2:26 pm-9:54 am

2 stops18h 28m

San Juan Luis Munoz Marin Intl

Thu 2/26

4:36 pm-8:40 am

1 stop17h 04m

$296

LouisvilleCulebra

SDF - CPX

SDFCPX

Louisville Intl

Sun 4/19

6:00 am-4:13 pm

2 stops10h 13m

Culebra

Thu 4/23

10:30 am-11:12 pm

2 stops12h 42m

$1,961

LouisvilleCulebra

SDF - CPX

SDFCPX

Louisville Intl

Sun 4/5

6:00 am-4:13 pm

2 stops10h 13m

Culebra

Sat 4/11

10:30 am-11:44 pm

2 stops13h 14m

$2,277

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 Puerto Rico from

How to get the cheapest flight ticket from Louisville to Puerto Rico

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 Puerto Rico?

If you don’t want to visit Puerto Rico in October, then you should wait until September to fly from Louisville, when ticket prices are also cheap, with an average price of $323.

How far in advance should I book a flight to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $425 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Louisville for as low as $344 on momondo.

Can stopping save me money on Louisville to Puerto Rico flights?

You could potentially save up to 34% on your flight if you consider stops on a Louisville to Puerto Rico flight.

Cheap Louisville to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Puerto Rico

Fastest flight time

5h 36m

Direct flights

None
The fastest flight from Louisville to Puerto Rico takes 5h 36m
There are no direct flights from Louisville to Puerto Rico. There are no popular flight routes from Louisville to Puerto Rico.
Search flight deals

  • When did momondo last update prices for flights from Louisville Intl Airport to Puerto Rico?

    Prices for flights from Louisville Intl Airport to Puerto Rico are refreshed on a daily basis.

  • How many operators does momondo search for flights from Louisville Intl Airport to Puerto Rico?

  • How old do you have to be to fly from Louisville Intl Airport to Puerto Rico?

    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 Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The travel and health documents you'll need for your trip to Puerto Rico 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 Puerto Rico. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to Puerto Rico

Compare and see reviews for airlines that fly from Louisville to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $152Free CancellationRating
6.3
8,438 reviews
Search Spirit Airlines flights
DeltaPriceFrom $205Free CancellationRating
7.9
8,178 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
American AirlinesPriceFrom $240Free CancellationRating
7.2
11,259 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,267 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Puerto Rico?

Finding the right flight to Puerto Rico 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 Puerto Rico quick and easy, saving you time and money.

Can I find flights from Louisville to Puerto Rico with flexible booking policies on momondo?

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

How can momondo help me find flights from Louisville to Puerto Rico?

momondo provides multiple filters to help you find the best flight to Puerto Rico 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 Puerto Rico right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Puerto Rico from Louisville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Puerto Rico

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