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Cheap flights from Louisville to Puerto Rico from $115

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 1/11. 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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Cheap round-trip flights

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American Airlines Logo
6:00 am - 6:22 pmSDF-SJU
11h 22m2 stops
American Airlines Logo
6:00 am - 6:39 pmSJU-SDF
13h 39m1 stop
$225American Airlines
Find Deal
Sun, Feb 1 - Wed, Feb 4
Spirit Airlines Logo
11:55 am - 12:45 amSDF-SJU
11h 50m1 stop
Spirit Airlines Logo
4:10 am - 11:00 amSJU-SDF
7h 50m1 stop
$237Spirit Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
United Airlines Logo
6:12 pm - 6:11 amSDF-SJU
10h 59m2 stops
United Airlines Logo
2:15 pm - 11:23 pmSJU-SDF
10h 08m1 stop
$260United Airlines
Find Deal
Sun, Jan 11 - Tue, Jan 13
American Airlines Logo
6:00 am - 4:21 pmSDF-SJU
9h 21m2 stops
American Airlines Logo
6:30 am - 3:52 pmSJU-SDF
10h 22m2 stops
$265American Airlines
Find Deal
Sun, Jan 11 - Sat, Jan 17
Multiple Airlines Logo
11:55 am - 12:16 amSDF-SJU
35h 21m2 stops
Multiple Airlines Logo
4:10 am - 10:31 amSJU-SDF
7h 21m1 stop
$279Multiple Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
Spirit Airlines Logo
11:55 am - 12:45 amSDF-SJU
11h 50m1 stop
Spirit Airlines Logo
4:10 am - 11:00 amSJU-SDF
7h 50m1 stop
$283Spirit Airlines
Find Deal
Fri, Dec 5 - Sat, Dec 6
American Airlines Logo
5:30 am - 4:09 pmSDF-SJU
9h 39m2 stops
American Airlines Logo
9:25 am - 6:00 pmSJU-SDF
9h 35m2 stops
$285American Airlines
Find Deal
Tue, Feb 24 - Wed, Mar 4
Multiple Airlines Logo
10:57 am - 2:34 amSDF-SJU
14h 37m1 stop
Multiple Airlines Logo
6:55 am - 10:07 amSJU-SDF
28h 12m1 stop
$290Multiple Airlines
Find Deal
Mon, Jan 12 - Sun, Jan 18
Spirit Airlines Logo
11:55 am - 12:45 amSDF-SJU
11h 50m1 stop
Spirit Airlines Logo
4:10 am - 11:00 amSJU-SDF
7h 50m1 stop
$292Spirit Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
United Airlines Logo
2:35 pm - 3:53 pmSDF-VQS
24h 18m2 stops
United Airlines Logo
11:44 am - 11:55 pmVQS-SDF
13h 11m2 stops
$5,524United Airlines
Find Deal
Tue, Mar 3 - Thu, Mar 5

United Airlines flights from Louisville to Puerto Rico

Our best United Airlines deals on Louisville to Puerto Rico flight tickets
United Airlines
Jan 11
SDF6:12 pmLouisville Intl
10h 59m
2 stops
SJU6:11 amSan Juan Luis Munoz Marin Intl
Jan 13
SJU2:15 pmSan Juan Luis Munoz Marin Intl
10h 08m
1 stop
SDF11:23 pmLouisville Intl
$260
Find similar
United Airlines
Jan 11
SDF6:12 pmLouisville Intl
10h 59m
2 stops
SJU6:11 amSan Juan Luis Munoz Marin Intl
Jan 16
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 23m
2 stops
SDF1:28 pmLouisville Intl
$307
Find similar
United Airlines
Mar 3
SDF9:00 amLouisville Intl
12h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Mar 4
SJU8:10 amSan Juan Luis Munoz Marin Intl
7h 37m
1 stop
SDF2:47 pmLouisville Intl
$310
Find similar

Spirit Airlines flights from Louisville to Puerto Rico

Our best Spirit Airlines deals on Louisville to Puerto Rico flight tickets
Spirit Airlines
Dec 8
SDF11:55 amLouisville Intl
11h 50m
1 stop
SJU12:45 amSan Juan Luis Munoz Marin Intl
Dec 11
SJU4:10 amSan Juan Luis Munoz Marin Intl
7h 50m
1 stop
SDF11:00 amLouisville Intl
$237
Find similar
Spirit Airlines
Dec 5
SDF11:55 amLouisville Intl
11h 50m
1 stop
SJU12:45 amSan Juan Luis Munoz Marin Intl
Dec 6
SJU4:10 amSan Juan Luis Munoz Marin Intl
7h 50m
1 stop
SDF11:00 amLouisville Intl
$283
Find similar
Spirit Airlines
Dec 5
SDF11:55 amLouisville Intl
11h 50m
1 stop
SJU12:45 amSan Juan Luis Munoz Marin Intl
Dec 7
SJU4:10 amSan Juan Luis Munoz Marin Intl
7h 50m
1 stop
SDF11:00 amLouisville Intl
$292
Find similar

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 November 13, 2025.
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

Sun 2/1

6:00 am-6:22 pm

2 stops11h 22m

San Juan Luis Munoz Marin Intl

Wed 2/4

6:00 am-6:39 pm

1 stop13h 39m

$225

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 12/8

11:55 am-12:45 am

1 stop11h 50m

San Juan Luis Munoz Marin Intl

Thu 12/11

4:10 am-11:00 am

1 stop7h 50m

$237

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/11

6:12 pm-6:11 am

2 stops10h 59m

San Juan Luis Munoz Marin Intl

Tue 1/13

2:15 pm-11:23 pm

1 stop10h 08m

$260

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/11

6:00 am-4:21 pm

2 stops9h 21m

San Juan Luis Munoz Marin Intl

Sat 1/17

6:30 am-3:52 pm

2 stops10h 22m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 12/8

11:55 am-12:16 am

2 stops35h 21m

San Juan Luis Munoz Marin Intl

Thu 12/11

4:10 am-10:31 am

1 stop7h 21m

$279

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 12/5

11:55 am-12:45 am

1 stop11h 50m

San Juan Luis Munoz Marin Intl

Sat 12/6

4:10 am-11:00 am

1 stop7h 50m

$283

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

5:30 am-4:09 pm

2 stops9h 39m

San Juan Luis Munoz Marin Intl

Wed 3/4

9:25 am-6:00 pm

2 stops9h 35m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 1/12

10:57 am-2:34 am

1 stop14h 37m

San Juan Luis Munoz Marin Intl

Sun 1/18

6:55 am-10:07 am

1 stop28h 12m

$290

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 12/5

11:55 am-12:45 am

1 stop11h 50m

San Juan Luis Munoz Marin Intl

Sun 12/7

4:10 am-11:00 am

1 stop7h 50m

$292

LouisvilleVieques

SDF - VQS

SDFVQS

Louisville Intl

Tue 3/3

2:35 pm-3:53 pm

2 stops24h 18m

Vieques

Thu 3/5

11:44 am-11:55 pm

2 stops13h 11m

$5,524

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 September, then you should wait until October to fly from Louisville, when ticket prices are also cheap, with an average price of $315.

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Louisville is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $372. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $459.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is in the evening. Flights from Louisville to Puerto Rico during this time can be as low as $339. In contrast, the most expensive time of day to depart to Puerto Rico is in the afternoon when prices are around $441.

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 $433 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 $367 on momondo.

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

You could potentially save up to 7% 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

Direct flights

None
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
8,139 reviews
Search Spirit Airlines flights
DeltaPriceFrom $223Free CancellationRating
7.9
8,007 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $257Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
9,017 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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Popular flights according to clicks in the last 7 days on momondo
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