Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Louisville to San Juan from $139

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 8/17. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
10:50 am - 6:05 pm
SDF
-
SJU
7h 15m
1 stop
Southwest Logo
6:00 am - 1:35 pm
SJU
-
SDF
7h 35m
1 stop
$220Southwest
Sat, Aug 15 - Thu, Aug 20
United Airlines Logo
6:00 am - 12:54 pm
SDF
-
SJU
6h 54m
1 stop
United Airlines Logo
2:20 pm - 10:15 pm
SJU
-
SDF
7h 55m
1 stop
$247United Airlines
Thu, Aug 27 - Sun, Aug 30
United Airlines Logo
7:10 am - 2:44 pm
SDF
-
SJU
7h 34m
1 stop
United Airlines Logo
2:20 pm - 10:15 pm
SJU
-
SDF
7h 55m
1 stop
$249United Airlines
Wed, Sep 9 - Sun, Sep 13
Southwest Logo
4:10 pm - 11:05 pm
SDF
-
SJU
6h 55m
1 stop
Southwest Logo
11:50 am - 8:35 pm
SJU
-
SDF
8h 45m
2 stops
$268Southwest
Mon, Aug 17 - Wed, Aug 19
American Airlines Logo
5:29 pm - 9:24 am
SDF
-
SJU
15h 55m
2 stops
American Airlines Logo
6:27 am - 11:22 pm
SJU
-
SDF
16h 55m
2 stops
$290American Airlines
Sat, Sep 12 - Fri, Sep 18
United Airlines Logo
11:00 am - 11:50 pm
SDF
-
SJU
12h 50m
2 stops
United Airlines Logo
2:20 pm - 10:15 pm
SJU
-
SDF
7h 55m
1 stop
$291United Airlines
Sat, Sep 12 - Fri, Sep 18
American Airlines Logo
7:31 am - 10:24 pm
SDF
-
SJU
14h 53m
1 stop
American Airlines Logo
2:33 pm - 10:59 pm
SJU
-
SDF
8h 26m
1 stop
$293American Airlines
Fri, Aug 28 - Fri, Sep 4
United Airlines Logo
7:10 am - 2:44 pm
SDF
-
SJU
7h 34m
1 stop
United Airlines Logo
1:25 pm - 10:59 pm
SJU
-
SDF
9h 34m
1 stop
$310United Airlines
Sat, Sep 12 - Sat, Sep 19
American Airlines Logo
6:15 am - 11:15 pm
SDF
-
SJU
17h 00m
1 stop
American Airlines Logo
3:47 pm - 11:11 pm
SJU
-
SDF
7h 24m
1 stop
$316American Airlines
Mon, Aug 10 - Thu, Aug 13
American Airlines Logo
7:37 am - 10:57 pm
SDF
-
SJU
15h 20m
1 stop
American Airlines Logo
7:00 am - 10:59 pm
SJU
-
SDF
15h 59m
1 stop
$321American Airlines
Tue, Jul 21 - Wed, Aug 5

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Southwest flights from Louisville to San Juan

Our best Southwest deals on Louisville to San Juan flight tickets
Southwest
Aug 15
SDF10:50 amLouisville Intl
7h 15m
1 stop
SJU6:05 pmSan Juan Luis Munoz Marin Intl
Aug 20
SJU6:00 amSan Juan Luis Munoz Marin Intl
7h 35m
1 stop
SDF1:35 pmLouisville Intl
$220
Southwest
Sep 24
SDF3:20 pmLouisville Intl
8h 30m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Sep 28
SJU6:00 amSan Juan Luis Munoz Marin Intl
7h 35m
1 stop
SDF1:35 pmLouisville Intl
$292
Southwest
Oct 3
SDF11:20 amLouisville Intl
10h 45m
1 stop
SJU10:05 pmSan Juan Luis Munoz Marin Intl
Oct 8
SJU3:20 pmSan Juan Luis Munoz Marin Intl
9h 20m
2 stops
SDF12:40 amLouisville Intl
$305

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Sep 25
SDF7:27 pmLouisville Intl
15h 33m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 30
SJU2:58 pmSan Juan Luis Munoz Marin Intl
8h 24m
2 stops
SDF11:22 pmLouisville Intl
$268
American Airlines
Sep 25
SDF7:27 pmLouisville Intl
15h 33m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 30
SJU2:22 pmSan Juan Luis Munoz Marin Intl
8h 33m
1 stop
SDF10:55 pmLouisville Intl
$273
American Airlines
Sep 12
SDF5:29 pmLouisville Intl
15h 55m
2 stops
SJU9:24 amSan Juan Luis Munoz Marin Intl
Sep 18
SJU6:27 amSan Juan Luis Munoz Marin Intl
16h 55m
2 stops
SDF11:22 pmLouisville Intl
$290

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 June 14, 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

Cheapest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 8/15

10:50 am-6:05 pm

1 stop7h 15m

San Juan Luis Munoz Marin Intl

Thu 8/20

6:00 am-1:35 pm

1 stop7h 35m

$220
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 8/27

6:00 am-12:54 pm

1 stop6h 54m

San Juan Luis Munoz Marin Intl

Sun 8/30

2:20 pm-10:15 pm

1 stop7h 55m

$247

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/9

7:10 am-2:44 pm

1 stop7h 34m

San Juan Luis Munoz Marin Intl

Sun 9/13

2:20 pm-10:15 pm

1 stop7h 55m

$249

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/17

4:10 pm-11:05 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Wed 8/19

11:50 am-8:35 pm

2 stops8h 45m

$268

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/12

5:29 pm-9:24 am

2 stops15h 55m

San Juan Luis Munoz Marin Intl

Fri 9/18

6:27 am-11:22 pm

2 stops16h 55m

$290

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/12

11:00 am-11:50 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

Fri 9/18

2:20 pm-10:15 pm

1 stop7h 55m

$291

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/28

7:31 am-10:24 pm

1 stop14h 53m

San Juan Luis Munoz Marin Intl

Fri 9/4

2:33 pm-10:59 pm

1 stop8h 26m

$293

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/12

7:10 am-2:44 pm

1 stop7h 34m

San Juan Luis Munoz Marin Intl

Sat 9/19

1:25 pm-10:59 pm

1 stop9h 34m

$310

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

6:15 am-11:15 pm

1 stop17h 00m

San Juan Luis Munoz Marin Intl

Thu 8/13

3:47 pm-11:11 pm

1 stop7h 24m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 7/21

7:37 am-10:57 pm

1 stop15h 20m

San Juan Luis Munoz Marin Intl

Wed 8/5

7:00 am-10:59 pm

1 stop15h 59m

$321

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 November, then January is your next best option. Flight prices from Louisville to San Juan during January average around $113.

How far in advance should I book a flight from Louisville 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 $426 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 $363 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 55m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 55m
There are no direct flights from Louisville to San Juan. There are no popular flight routes from Louisville to San Juan.
Search flight deals

Frequently asked questions about flying from Louisville to San Juan

  • 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 55m 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
DeltaPriceFrom $198Free CancellationRating
7.9
8,404 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,235 reviews
Search Southwest flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,654 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,820 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.

An easier way to manage your San Juan 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 7/14
Tue 7/21
By creating a price alert you accept our terms of use and privacy policy.

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