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Cheap flights from Louisville to Puerto Rico from $156

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 5/29. 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
10:00 am - 8:45 pm
SDF
-
SJU
10h 45m
1 stop
Delta Logo
2:59 pm - 9:29 pm
SJU
-
SDF
6h 30m
1 stop
$316Delta
Thu, Jul 30 - Tue, Aug 4
American Airlines Logo
6:08 pm - 11:10 am
SDF
-
SJU
17h 02m
1 stop
American Airlines Logo
2:05 pm - 11:58 pm
SJU
-
SDF
9h 53m
1 stop
$325American Airlines
Mon, Sep 14 - Thu, Sep 17
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
Multiple Airlines Logo
11:12 am - 12:23 am
SDF
-
SJU
13h 11m
1 stop
Multiple Airlines Logo
3:06 am - 4:29 pm
SJU
-
SDF
13h 23m
1 stop
$340Multiple Airlines
Thu, Aug 20 - Sat, Aug 22
Delta Logo
7:05 am - 1:32 pm
SDF
-
SJU
6h 27m
1 stop
Delta Logo
5:49 pm - 12:34 am
SJU
-
SDF
6h 45m
1 stop
$355Delta
Thu, Jul 30 - Tue, Aug 4
United Airlines Logo
6:30 am - 1:45 pm
SDF
-
SJU
7h 15m
1 stop
United Airlines Logo
1:00 am - 1:00 pm
SJU
-
SDF
12h 00m
2 stops
$361United Airlines
Thu, Sep 24 - Fri, Oct 2
Southwest Logo
7:05 am - 4:25 pm
SDF
-
SJU
9h 20m
2 stops
Southwest Logo
5:05 am - 11:10 am
SJU
-
SDF
6h 05m
1 stop
$365Southwest
Tue, Aug 18 - Sat, Aug 22
Delta Logo
6:00 am - 11:48 am
SDF
-
SJU
5h 48m
1 stop
Delta Logo
12:58 pm - 8:52 pm
SJU
-
SDF
7h 54m
1 stop
$366Delta
Fri, Sep 18 - Sat, Sep 26
Southwest Logo
2:15 pm - 11:05 pm
SDF
-
SJU
8h 50m
2 stops
Southwest Logo
6:00 am - 3:30 pm
SJU
-
SDF
9h 30m
2 stops
$376Southwest
Fri, Sep 11 - Fri, Sep 18
United Airlines Logo
10:15 am - 5:39 pm
SDF
-
VQS
31h 24m
2 stops
United Airlines Logo
11:40 am - 10:57 pm
VQS
-
SDF
11h 17m
2 stops
$1,708United Airlines
Fri, Aug 28 - Mon, Aug 31

Delta flights from Louisville to Puerto Rico

Our best Delta deals on Louisville to Puerto Rico flight tickets
Delta
Jul 30
SDF10:00 amLouisville Intl
10h 45m
1 stop
SJU8:45 pmSan Juan Luis Munoz Marin Intl
Aug 4
SJU2:59 pmSan Juan Luis Munoz Marin Intl
6h 30m
1 stop
SDF9:29 pmLouisville Intl
$316
Delta
Jul 30
SDF7:05 amLouisville Intl
6h 27m
1 stop
SJU1:32 pmSan Juan Luis Munoz Marin Intl
Aug 4
SJU5:49 pmSan Juan Luis Munoz Marin Intl
6h 45m
1 stop
SDF12:34 amLouisville Intl
$355
Delta
Sep 18
SDF6:00 amLouisville Intl
5h 48m
1 stop
SJU11:48 amSan Juan Luis Munoz Marin Intl
Sep 26
SJU12:58 pmSan Juan Luis Munoz Marin Intl
7h 54m
1 stop
SDF8:52 pmLouisville Intl
$366

American Airlines flights from Louisville to Puerto Rico

Our best American Airlines deals on Louisville to Puerto Rico flight tickets
American Airlines
Sep 14
SDF6:08 pmLouisville Intl
17h 02m
1 stop
SJU11:10 amSan Juan Luis Munoz Marin Intl
Sep 17
SJU2:05 pmSan Juan Luis Munoz Marin Intl
9h 53m
1 stop
SDF11:58 pmLouisville Intl
$325
American Airlines
Oct 11
SDF8:55 amLouisville Intl
14h 55m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 17
SJU6:00 amSan Juan Luis Munoz Marin Intl
11h 51m
1 stop
SDF5:51 pmLouisville Intl
$326
American Airlines
May 11
SDF1:43 pmLouisville Intl
14h 49m
1 stop
SJU4:32 amSan Juan Luis Munoz Marin Intl
May 26
SJU6:20 amSan Juan Luis Munoz Marin Intl
16h 48m
1 stop
SDF11:08 pmLouisville Intl
$376

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 May 8, 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

Thu 7/30

10:00 am-8:45 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Tue 8/4

2:59 pm-9:29 pm

1 stop6h 30m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/14

6:08 pm-11:10 am

1 stop17h 02m

San Juan Luis Munoz Marin Intl

Thu 9/17

2:05 pm-11:58 pm

1 stop9h 53m

$325

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

Thu 8/20

11:12 am-12:23 am

1 stop13h 11m

San Juan Luis Munoz Marin Intl

Sat 8/22

3:06 am-4:29 pm

1 stop13h 23m

$340
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 7/30

7:05 am-1:32 pm

1 stop6h 27m

San Juan Luis Munoz Marin Intl

Tue 8/4

5:49 pm-12:34 am

1 stop6h 45m

$355

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 9/24

6:30 am-1:45 pm

1 stop7h 15m

San Juan Luis Munoz Marin Intl

Fri 10/2

1:00 am-1:00 pm

2 stops12h 00m

$361

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 8/18

7:05 am-4:25 pm

2 stops9h 20m

San Juan Luis Munoz Marin Intl

Sat 8/22

5:05 am-11:10 am

1 stop6h 05m

$365

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/18

6:00 am-11:48 am

1 stop5h 48m

San Juan Luis Munoz Marin Intl

Sat 9/26

12:58 pm-8:52 pm

1 stop7h 54m

$366

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/11

2:15 pm-11:05 pm

2 stops8h 50m

San Juan Luis Munoz Marin Intl

Fri 9/18

6:00 am-3:30 pm

2 stops9h 30m

$376

LouisvilleVieques

SDF - VQS

SDFVQS

Louisville Intl

Fri 8/28

10:15 am-5:39 pm

2 stops31h 24m

Vieques

Mon 8/31

11:40 am-10:57 pm

2 stops11h 17m

$1,708

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 November, then you should wait until January to fly from Louisville, when ticket prices are also cheap, with an average price of $113.

How far in advance should I book a flight from Louisville 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 $426 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 $377 on momondo.

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

You could potentially save up to 16% 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
8,638 reviews
Search Spirit Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,456 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,302 reviews
Search Southwest flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,694 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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