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Cheap flights from Louisville to Puerto Rico from $106

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 5/11. 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.
Multiple Airlines Logo
7:48 pm - 7:22 pm
SDF
-
SJU
23h 34m
1 stop
Multiple Airlines Logo
6:00 am - 6:58 pm
SJU
-
SDF
12h 58m
1 stop
$226Multiple Airlines
Fri, Apr 24 - Fri, May 1
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$232Spirit Airlines
Fri, May 1 - Thu, May 7
Multiple Airlines Logo
7:48 pm - 12:29 am
SDF
-
SJU
28h 41m
2 stops
Multiple Airlines Logo
6:00 am - 6:58 pm
SJU
-
SDF
12h 58m
1 stop
$262Multiple Airlines
Fri, Apr 24 - Fri, May 1
Spirit Airlines Logo
6:06 pm - 12:54 am
SDF
-
SJU
30h 48m
2 stops
Spirit Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$265Spirit Airlines
Fri, May 1 - Thu, May 7
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$267Spirit Airlines
Fri, May 1 - Fri, May 8
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
12:57 pm - 5:04 pm
SJU
-
SDF
28h 07m
1 stop
$268Spirit Airlines
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
6:06 pm - 12:33 pm
SDF
-
SJU
18h 27m
1 stop
Multiple Airlines Logo
12:57 pm - 6:58 pm
SJU
-
SDF
30h 01m
1 stop
$271Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
United Airlines Logo
6:00 am - 5:21 pm
SDF
-
CPX
11h 21m
2 stops
United Airlines Logo
10:48 am - 12:05 am
CPX
-
SDF
13h 17m
2 stops
$1,041United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
6:15 am - 5:21 pm
SDF
-
CPX
11h 06m
2 stops
United Airlines Logo
10:48 am - 10:14 pm
CPX
-
SDF
11h 26m
2 stops
$1,558United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
6:00 am - 6:30 pm
SDF
-
VQS
12h 30m
2 stops
United Airlines Logo
11:40 am - 10:57 pm
VQS
-
SDF
11h 17m
2 stops
$1,710United Airlines
Sat, Aug 22 - Wed, Aug 26

United Airlines flights from Louisville to Puerto Rico

Our best United Airlines deals on Louisville to Puerto Rico flight tickets
United Airlines
Apr 30
SDF3:59 pmLouisville Intl
7h 51m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
May 5
SJU1:25 pmSan Juan Luis Munoz Marin Intl
10h 31m
2 stops
SDF11:56 pmLouisville Intl
$328
United Airlines
Apr 15
SDF2:20 pmLouisville Intl
9h 30m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Apr 21
SJU1:00 amSan Juan Luis Munoz Marin Intl
12h 17m
2 stops
SDF1:17 pmLouisville Intl
$356
United Airlines
Apr 20
SDF5:00 amLouisville Intl
9h 44m
1 stop
SJU2:44 pmSan Juan Luis Munoz Marin Intl
Apr 24
SJU3:56 pmSan Juan Luis Munoz Marin Intl
8h 03m
1 stop
SDF11:59 pmLouisville Intl
$486

Spirit Airlines flights from Louisville to Puerto Rico

Our best Spirit Airlines deals on Louisville to Puerto Rico flight tickets
Spirit Airlines
May 1
SDF6:06 pmLouisville Intl
25h 16m
1 stop
SJU7:22 pmSan Juan Luis Munoz Marin Intl
May 7
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$232
Spirit Airlines
May 9
SDF10:33 amLouisville Intl
8h 26m
1 stop
SJU6:59 pmSan Juan Luis Munoz Marin Intl
May 17
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$252
Spirit Airlines
May 1
SDF6:06 pmLouisville Intl
30h 48m
2 stops
SJU12:54 amSan Juan Luis Munoz Marin Intl
May 7
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$265

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 April 6, 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

Cheapest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

7:48 pm-7:22 pm

1 stop23h 34m

San Juan Luis Munoz Marin Intl

Fri 5/1

6:00 am-6:58 pm

1 stop12h 58m

$226

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Thu 5/7

8:04 pm-9:28 am

1 stop13h 24m

$232

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

7:48 pm-12:29 am

2 stops28h 41m

San Juan Luis Munoz Marin Intl

Fri 5/1

6:00 am-6:58 pm

1 stop12h 58m

$262

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

6:06 pm-12:54 am

2 stops30h 48m

San Juan Luis Munoz Marin Intl

Thu 5/7

8:04 pm-9:28 am

1 stop13h 24m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/8

8:04 pm-9:28 am

1 stop13h 24m

$267

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/1

12:57 pm-5:04 pm

1 stop28h 07m

$268

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 4/26

6:06 pm-12:33 pm

1 stop18h 27m

San Juan Luis Munoz Marin Intl

Thu 4/30

12:57 pm-6:58 pm

1 stop30h 01m

$271

LouisvilleCulebra

SDF - CPX

SDFCPX

Louisville Intl

Sat 8/29

6:00 am-5:21 pm

2 stops11h 21m

Culebra

Wed 9/2

10:48 am-12:05 am

2 stops13h 17m

$1,041
Quickest round-trip

LouisvilleCulebra

SDF - CPX

SDFCPX

Louisville Intl

Sat 8/29

6:15 am-5:21 pm

2 stops11h 06m

Culebra

Wed 9/2

10:48 am-10:14 pm

2 stops11h 26m

$1,558

LouisvilleVieques

SDF - VQS

SDFVQS

Louisville Intl

Sat 8/22

6:00 am-6:30 pm

2 stops12h 30m

Vieques

Wed 8/26

11:40 am-10:57 pm

2 stops11h 17m

$1,710

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 February to fly from Louisville, when ticket prices are also cheap, with an average price of $346.

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 $419 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 $355 on momondo.

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

You could potentially save up to 40% 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 48m

Direct flights

None
The fastest flight from Louisville to Puerto Rico takes 5h 48m
There are no direct flights from Louisville to Puerto Rico. There are no popular flight routes from Louisville to Puerto Rico.
Search flight deals

Frequently asked questions about flying from Louisville to Puerto Rico

  • 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 $176Free CancellationRating
6.3
8,595 reviews
Search Spirit Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,382 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,338 reviews
Search Southwest flights
American AirlinesPriceFrom $240Free CancellationRating
7.1
11,550 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,546 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

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Find better results for your trip to Puerto Rico

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Popular flights according to clicks in the last 7 days on momondo
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