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Cheap flights from Louisville to San Juan from $135

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 11/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Delta Logo
3:32 pm - 11:44 pmSDF-SJU
7h 12m1 stop
Delta Logo
7:30 am - 2:36 pmSJU-SDF
8h 06m1 stop
$225Delta
Find Deal
Sun, Jan 25 - Thu, Jan 29
American Airlines Logo
6:00 am - 1:08 pmSDF-SJU
6h 08m1 stop
American Airlines Logo
5:51 pm - 11:59 pmSJU-SDF
7h 08m1 stop
$265American Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 3
American Airlines Logo
7:20 pm - 12:30 pmSDF-SJU
16h 10m2 stops
American Airlines Logo
6:00 am - 6:30 pmSJU-SDF
13h 30m2 stops
$285American Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
7:13 pm - 1:05 pmSDF-SJU
16h 52m1 stop
American Airlines Logo
6:25 am - 9:40 pmSJU-SDF
16h 15m1 stop
$290American Airlines
Find Deal
Fri, Nov 14 - Wed, Nov 19
United Airlines Logo
9:00 am - 10:22 pmSDF-SJU
12h 22m2 stops
United Airlines Logo
8:10 am - 2:47 pmSJU-SDF
7h 37m1 stop
$310United Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
United Airlines Logo
2:10 pm - 10:22 pmSDF-SJU
7h 12m1 stop
United Airlines Logo
2:05 am - 1:28 pmSJU-SDF
12h 23m2 stops
$315United Airlines
Find Deal
Sun, Jan 25 - Wed, Jan 28
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
$327Spirit Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Multiple Airlines Logo
6:54 pm - 4:23 pmSDF-SJU
20h 29m2 stops
Multiple Airlines Logo
6:00 am - 11:45 pmSJU-SDF
18h 45m2 stops
$331Multiple Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
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
$335Spirit Airlines
Find Deal
Fri, Dec 5 - Sun, Dec 7
Southwest Logo
1:45 pm - 8:55 pmSDF-SJU
6h 10m1 stop
Southwest Logo
6:00 am - 6:05 pmSJU-SDF
13h 05m1 stop
$402Southwest
Find Deal
Sat, Feb 14 - Sun, Feb 22

Delta flights from Louisville to San Juan

Our best Delta deals on Louisville to San Juan flight tickets
Delta
Jan 25
SDF3:32 pmLouisville Intl
7h 12m
1 stop
SJU11:44 pmSan Juan Luis Munoz Marin Intl
Jan 29
SJU7:30 amSan Juan Luis Munoz Marin Intl
8h 06m
1 stop
SDF2:36 pmLouisville Intl
$225
Find similar
Delta
Nov 2
SDF5:00 amLouisville Intl
5h 36m
1 stop
SJU11:36 amSan Juan Luis Munoz Marin Intl
Nov 8
SJU6:43 pmSan Juan Luis Munoz Marin Intl
6h 18m
1 stop
SDF12:01 amLouisville Intl
$393
Find similar
Delta
Nov 9
SDF6:00 amLouisville Intl
5h 46m
1 stop
SJU12:46 pmSan Juan Luis Munoz Marin Intl
Nov 14
SJU6:36 pmSan Juan Luis Munoz Marin Intl
6h 30m
1 stop
SDF12:06 amLouisville Intl
$593
Find similar

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Jan 27
SDF6:00 amLouisville Intl
6h 08m
1 stop
SJU1:08 pmSan Juan Luis Munoz Marin Intl
Feb 3
SJU5:51 pmSan Juan Luis Munoz Marin Intl
7h 08m
1 stop
SDF11:59 pmLouisville Intl
$265
Find similar
American Airlines
Jan 13
SDF7:20 pmLouisville Intl
16h 10m
2 stops
SJU12:30 pmSan Juan Luis Munoz Marin Intl
Jan 20
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 30m
2 stops
SDF6:30 pmLouisville Intl
$285
Find similar
American Airlines
Nov 14
SDF7:13 pmLouisville Intl
16h 52m
1 stop
SJU1:05 pmSan Juan Luis Munoz Marin Intl
Nov 19
SJU6:25 amSan Juan Luis Munoz Marin Intl
16h 15m
1 stop
SDF9:40 pmLouisville Intl
$290
Find similar

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 October 30, 2025.
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

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/25

3:32 pm-11:44 pm

1 stop7h 12m

San Juan Luis Munoz Marin Intl

Thu 1/29

7:30 am-2:36 pm

1 stop8h 06m

$225

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 1/27

6:00 am-1:08 pm

1 stop6h 08m

San Juan Luis Munoz Marin Intl

Tue 2/3

5:51 pm-11:59 pm

1 stop7h 08m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 1/13

7:20 pm-12:30 pm

2 stops16h 10m

San Juan Luis Munoz Marin Intl

Tue 1/20

6:00 am-6:30 pm

2 stops13h 30m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 11/14

7:13 pm-1:05 pm

1 stop16h 52m

San Juan Luis Munoz Marin Intl

Wed 11/19

6:25 am-9:40 pm

1 stop16h 15m

$290

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 3/3

9:00 am-10:22 pm

2 stops12h 22m

San Juan Luis Munoz Marin Intl

Wed 3/4

8:10 am-2:47 pm

1 stop7h 37m

$310

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/25

2:10 pm-10:22 pm

1 stop7h 12m

San Juan Luis Munoz Marin Intl

Wed 1/28

2:05 am-1:28 pm

2 stops12h 23m

$315

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

$327

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 1/9

6:54 pm-4:23 pm

2 stops20h 29m

San Juan Luis Munoz Marin Intl

Mon 1/12

6:00 am-11:45 pm

2 stops18h 45m

$331

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

$335

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 2/14

1:45 pm-8:55 pm

1 stop6h 10m

San Juan Luis Munoz Marin Intl

Sun 2/22

6:00 am-6:05 pm

1 stop13h 05m

$402

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 cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in September, then October is your next best option. Flight prices from Louisville to San Juan during October average around $344.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Louisville to San Juan is on a Tuesday when prices can be found for as low as $372. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $459.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the evening when flights can be purchased for as low as $339. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $441 on average. Flights to San Juan from Louisville in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight 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 $433 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 $383 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

Direct flights

None
There are no direct flights from Louisville to San Juan. There are no popular flight routes from Louisville to San Juan.
Search flight deals

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

    San Juan is 1805.8 mi away from Louisville Intl. Typically, this will take 5h 53m 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 $152Free CancellationRating
6.3
8,116 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
DeltaPriceFrom $225Free CancellationRating
7.9
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $257Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
8,998 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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Sat 11/29
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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