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Cheap flights from Louisville to San Juan from $111

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 3/2. 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
6:00 am - 5:01 pm
SDF
-
SJU
10h 01m1 stop
American Airlines Logo
6:05 am - 11:19 pm
SJU
-
SDF
18h 14m1 stop
$226American Airlines
Thu, Jan 29 - Sat, Feb 7
Multiple Airlines Logo
1:19 pm - 12:43 am
SDF
-
SJU
10h 24m1 stop
Multiple Airlines Logo
3:53 am - 12:21 pm
SJU
-
SDF
9h 28m1 stop
$246Multiple Airlines
Wed, Feb 25 - Tue, Mar 3
Spirit Airlines Logo
1:55 pm - 9:47 am
SDF
-
SJU
18h 52m1 stop
Spirit Airlines Logo
8:05 pm - 1:00 pm
SJU
-
SDF
17h 55m1 stop
$249Spirit Airlines
Mon, Feb 2 - Tue, Feb 10
Multiple Airlines Logo
6:54 pm - 11:33 pm
SDF
-
SJU
27h 39m2 stops
Multiple Airlines Logo
8:05 pm - 1:00 pm
SJU
-
SDF
17h 55m1 stop
$252Multiple Airlines
Mon, Feb 2 - Tue, Feb 10
Spirit Airlines Logo
3:36 pm - 1:41 am
SDF
-
SJU
33h 05m2 stops
Spirit Airlines Logo
8:05 pm - 1:00 pm
SJU
-
SDF
17h 55m1 stop
$253Spirit Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
1:19 pm - 11:09 pm
SDF
-
SJU
8h 50m1 stop
Multiple Airlines Logo
3:53 am - 12:21 pm
SJU
-
SDF
9h 28m1 stop
$260Multiple Airlines
Fri, Feb 27 - Tue, Mar 3
Spirit Airlines Logo
1:55 pm - 9:47 am
SDF
-
SJU
18h 52m1 stop
Spirit Airlines Logo
6:00 am - 1:00 pm
SJU
-
SDF
8h 00m1 stop
$262Spirit Airlines
Mon, Feb 2 - Wed, Feb 11
Multiple Airlines Logo
6:54 pm - 11:33 pm
SDF
-
SJU
27h 39m2 stops
Multiple Airlines Logo
6:00 am - 1:00 pm
SJU
-
SDF
8h 00m1 stop
$264Multiple Airlines
Mon, Feb 2 - Wed, Feb 11
Spirit Airlines Logo
3:36 pm - 9:47 am
SDF
-
SJU
17h 11m2 stops
Spirit Airlines Logo
8:05 pm - 1:00 pm
SJU
-
SDF
17h 55m1 stop
$265Spirit Airlines
Tue, Feb 3 - Tue, Feb 10
United Airlines Logo
2:05 pm - 12:36 am
SDF
-
SJU
9h 31m2 stops
United Airlines Logo
8:10 am - 8:28 pm
SJU
-
SDF
13h 18m2 stops
$266United Airlines
Tue, Jan 20 - Thu, Jan 29

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
American Airlines
Mar 18
SDF8:12 pmLouisville Intl
9h 16m
1 stop
SJU5:28 amSan Juan Luis Munoz Marin Intl
Mar 24
SJU6:00 amSan Juan Luis Munoz Marin Intl
17h 59m
1 stop
SDF11:59 pmLouisville Intl
$286
American Airlines
Jan 22
SDF6:00 amLouisville Intl
11h 22m
1 stop
SJU6:22 pmSan Juan Luis Munoz Marin Intl
Jan 25
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 39m
1 stop
SDF6:39 pmLouisville Intl
$306

Spirit Airlines flights from Louisville to San Juan

Our best Spirit Airlines deals on Louisville to San Juan flight tickets
Spirit Airlines
Feb 2
SDF1:55 pmLouisville Intl
18h 52m
1 stop
SJU9:47 amSan Juan Luis Munoz Marin Intl
Feb 10
SJU8:05 pmSan Juan Luis Munoz Marin Intl
17h 55m
1 stop
SDF1:00 pmLouisville Intl
$249
Spirit Airlines
Feb 3
SDF3:36 pmLouisville Intl
33h 05m
2 stops
SJU1:41 amSan Juan Luis Munoz Marin Intl
Feb 10
SJU8:05 pmSan Juan Luis Munoz Marin Intl
17h 55m
1 stop
SDF1:00 pmLouisville Intl
$253
Spirit Airlines
Feb 2
SDF1:55 pmLouisville Intl
18h 52m
1 stop
SJU9:47 amSan Juan Luis Munoz Marin Intl
Feb 11
SJU6:00 amSan Juan Luis Munoz Marin Intl
8h 00m
1 stop
SDF1:00 pmLouisville Intl
$262

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 8, 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

6:00 am-5:01 pm

1 stop10h 01m

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

Wed 2/25

1:19 pm-12:43 am

1 stop10h 24m

San Juan Luis Munoz Marin Intl

Tue 3/3

3:53 am-12:21 pm

1 stop9h 28m

$246

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/2

1:55 pm-9:47 am

1 stop18h 52m

San Juan Luis Munoz Marin Intl

Tue 2/10

8:05 pm-1:00 pm

1 stop17h 55m

$249

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/2

6:54 pm-11:33 pm

2 stops27h 39m

San Juan Luis Munoz Marin Intl

Tue 2/10

8:05 pm-1:00 pm

1 stop17h 55m

$252

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/3

3:36 pm-1:41 am

2 stops33h 05m

San Juan Luis Munoz Marin Intl

Tue 2/10

8:05 pm-1:00 pm

1 stop17h 55m

$253

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

Tue 3/3

3:53 am-12:21 pm

1 stop9h 28m

$260

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/2

1:55 pm-9:47 am

1 stop18h 52m

San Juan Luis Munoz Marin Intl

Wed 2/11

6:00 am-1:00 pm

1 stop8h 00m

$262

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/2

6:54 pm-11:33 pm

2 stops27h 39m

San Juan Luis Munoz Marin Intl

Wed 2/11

6:00 am-1:00 pm

1 stop8h 00m

$264

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/3

3:36 pm-9:47 am

2 stops17h 11m

San Juan Luis Munoz Marin Intl

Tue 2/10

8:05 pm-1:00 pm

1 stop17h 55m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 1/20

2:05 pm-12:36 am

2 stops9h 31m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:10 am-8:28 pm

2 stops13h 18m

$266

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 $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

6h 34m

Direct flights

None
The fastest flight from Louisville to San Juan takes 6h 34m
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 6h 34m 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
8,287 reviews
Search Spirit Airlines flights
DeltaPriceFrom $215Free CancellationRating
7.9
8,025 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
American AirlinesPriceFrom $255Free CancellationRating
7.2
11,095 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,139 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