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Cheap flights from Louisville to San Juan from $113

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 4/1. 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 San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:00 am - 6:22 pm
SDF
-
SJU
10h 22m2 stops
American Airlines Logo
6:05 am - 11:19 pm
SJU
-
SDF
18h 14m1 stop
$226American Airlines
Thu, Jan 29 - Sat, Feb 7
United Airlines Logo
7:20 am - 2:44 pm
SDF
-
SJU
7h 24m1 stop
United Airlines Logo
1:25 pm - 10:57 pm
SJU
-
SDF
9h 32m1 stop
$259United Airlines
Sun, Apr 26 - Sat, May 2
United Airlines Logo
9:00 am - 10:22 pm
SDF
-
SJU
12h 22m2 stops
United Airlines Logo
8:05 am - 2:47 pm
SJU
-
SDF
7h 42m1 stop
$265United Airlines
Tue, Feb 24 - Tue, Mar 3
Delta Logo
5:35 am - 2:31 pm
SDF
-
SJU
7h 56m1 stop
Delta Logo
3:55 pm - 11:50 pm
SJU
-
SDF
8h 55m1 stop
$266Delta
Sun, Jan 25 - Thu, Jan 29
Multiple Airlines Logo
1:19 pm - 2:53 am
SDF
-
SJU
12h 34m1 stop
Multiple Airlines Logo
6:00 am - 12:21 pm
SJU
-
SDF
7h 21m1 stop
$271Multiple Airlines
Fri, Feb 20 - Wed, Feb 25
Multiple Airlines Logo
9:30 am - 11:09 pm
SDF
-
SJU
36h 39m2 stops
Multiple Airlines Logo
6:00 am - 12:21 pm
SJU
-
SDF
7h 21m1 stop
$273Multiple Airlines
Mon, Feb 16 - Wed, Feb 25
Spirit Airlines Logo
1:19 pm - 11:09 pm
SDF
-
SJU
8h 50m1 stop
Spirit Airlines Logo
6:00 am - 12:21 pm
SJU
-
SDF
7h 21m1 stop
$280Spirit Airlines
Fri, Feb 27 - Mon, Mar 2
Spirit Airlines Logo
3:33 pm - 10:17 am
SDF
-
SJU
17h 44m2 stops
Spirit Airlines Logo
6:00 am - 12:21 pm
SJU
-
SDF
7h 21m1 stop
$281Spirit Airlines
Tue, Feb 17 - Wed, Feb 25
American Airlines Logo
6:06 am - 10:34 pm
SDF
-
SJU
16h 28m1 stop
American Airlines Logo
7:11 am - 11:59 pm
SJU
-
SDF
16h 48m1 stop
$286American Airlines
Wed, Mar 18 - Tue, Mar 24
Multiple Airlines Logo
1:19 pm - 12:43 am
SDF
-
SJU
10h 24m1 stop
Multiple Airlines Logo
4:11 pm - 12:21 pm
SJU
-
SDF
21h 10m2 stops
$290Multiple Airlines
Fri, Feb 27 - Tue, Mar 3

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Jan 29
SDF6:00 amLouisville Intl
10h 01m
1 stop
SJU5:01 pmSan Juan Luis Munoz Marin Intl
Feb 7
SJU6:05 amSan Juan Luis Munoz Marin Intl
18h 14m
1 stop
SDF11:19 pmLouisville Intl
$226
Find similar
American Airlines
Mar 18
SDF6:06 amLouisville Intl
16h 28m
1 stop
SJU10:34 pmSan Juan Luis Munoz Marin Intl
Mar 24
SJU7:11 amSan Juan Luis Munoz Marin Intl
16h 48m
1 stop
SDF11:59 pmLouisville Intl
$286
Find similar
American Airlines
Mar 18
SDF7:00 amLouisville Intl
9h 59m
2 stops
SJU4:59 pmSan Juan Luis Munoz Marin Intl
Mar 24
SJU7:40 amSan Juan Luis Munoz Marin Intl
13h 31m
1 stop
SDF9:11 pmLouisville Intl
$326
Find similar

United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
Apr 26
SDF7:20 amLouisville Intl
7h 24m
1 stop
SJU2:44 pmSan Juan Luis Munoz Marin Intl
May 1
SJU1:00 amSan Juan Luis Munoz Marin Intl
12h 00m
2 stops
SDF1:00 pmLouisville Intl
$259
Find similar
United Airlines
Feb 24
SDF9:00 amLouisville Intl
12h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Mar 3
SJU8:05 amSan Juan Luis Munoz Marin Intl
7h 42m
1 stop
SDF2:47 pmLouisville Intl
$265
Find similar
United Airlines
Jan 20
SDF2:05 pmLouisville Intl
9h 31m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 29
SJU8:10 amSan Juan Luis Munoz Marin Intl
13h 18m
2 stops
SDF8:28 pmLouisville Intl
$266
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 January 6, 2026.
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

Thu 1/29

7:00 am-6:22 pm

2 stops10h 22m

San Juan Luis Munoz Marin Intl

Sat 2/7

6:05 am-11:19 pm

1 stop18h 14m

$226

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 4/26

7:20 am-2:44 pm

1 stop7h 24m

San Juan Luis Munoz Marin Intl

Sat 5/2

1:25 pm-10:57 pm

1 stop9h 32m

$259

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

9:00 am-10:22 pm

2 stops12h 22m

San Juan Luis Munoz Marin Intl

Tue 3/3

8:05 am-2:47 pm

1 stop7h 42m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/25

5:35 am-2:31 pm

1 stop7h 56m

San Juan Luis Munoz Marin Intl

Thu 1/29

3:55 pm-11:50 pm

1 stop8h 55m

$266

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 2/20

1:19 pm-2:53 am

1 stop12h 34m

San Juan Luis Munoz Marin Intl

Wed 2/25

6:00 am-12:21 pm

1 stop7h 21m

$271

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/16

9:30 am-11:09 pm

2 stops36h 39m

San Juan Luis Munoz Marin Intl

Wed 2/25

6:00 am-12:21 pm

1 stop7h 21m

$273

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 2/27

1:19 pm-11:09 pm

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Mon 3/2

6:00 am-12:21 pm

1 stop7h 21m

$280

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/17

3:33 pm-10:17 am

2 stops17h 44m

San Juan Luis Munoz Marin Intl

Wed 2/25

6:00 am-12:21 pm

1 stop7h 21m

$281

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 3/18

6:06 am-10:34 pm

1 stop16h 28m

San Juan Luis Munoz Marin Intl

Tue 3/24

7:11 am-11:59 pm

1 stop16h 48m

$286

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 2/27

1:19 pm-12:43 am

1 stop10h 24m

San Juan Luis Munoz Marin Intl

Tue 3/3

4:11 pm-12:21 pm

2 stops21h 10m

$290

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 typical price of a round-trip flight between Louisville and San Juan?

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 $315.

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 $430 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 $394 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

Fastest flight time

5h 37m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 37m
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 37m 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
8,271 reviews
Search Spirit Airlines flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,018 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
American AirlinesPriceFrom $255Free CancellationRating
7.2
11,084 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,132 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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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