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Cheap flights from Louisville to San Juan from $158

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 7/25. 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.
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
$226United Airlines
Fri, Aug 21 - Fri, Aug 28
American Airlines Logo
7:27 pm - 11:00 am
SDF
-
SJU
15h 33m
2 stops
American Airlines Logo
2:58 pm - 11:22 pm
SJU
-
SDF
8h 24m
2 stops
$261American Airlines
Sat, Sep 19 - Wed, Sep 23
American Airlines Logo
7:27 pm - 11:00 am
SDF
-
SJU
15h 33m
2 stops
American Airlines Logo
6:27 am - 6:50 pm
SJU
-
SDF
12h 23m
2 stops
$271American Airlines
Fri, Sep 25 - Wed, Sep 30
American Airlines Logo
7:27 pm - 11:00 am
SDF
-
SJU
15h 33m
2 stops
American Airlines Logo
3:41 pm - 11:22 pm
SJU
-
SDF
7h 41m
1 stop
$276American Airlines
Sat, Sep 19 - Wed, Sep 23
American Airlines Logo
8:16 am - 2:51 pm
SDF
-
SJU
6h 35m
1 stop
American Airlines Logo
7:03 am - 10:59 pm
SJU
-
SDF
15h 56m
1 stop
$281American Airlines
Wed, Sep 2 - Mon, Sep 7
Delta Logo
6:00 am - 11:45 am
SDF
-
SJU
5h 45m
1 stop
Delta Logo
5:59 pm - 11:59 pm
SJU
-
SDF
6h 00m
1 stop
$286Delta
Fri, Sep 25 - Wed, Sep 30
American Airlines Logo
7:31 am - 6:33 pm
SDF
-
SJU
11h 02m
2 stops
American Airlines Logo
7:30 am - 5:59 pm
SJU
-
SDF
10h 29m
1 stop
$296American Airlines
Fri, Aug 21 - Fri, Aug 28
American Airlines Logo
8:16 am - 11:59 pm
SDF
-
SJU
15h 43m
1 stop
American Airlines Logo
7:30 am - 11:11 pm
SJU
-
SDF
15h 41m
1 stop
$301American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
6:20 am - 2:50 pm
SDF
-
SJU
8h 30m
1 stop
American Airlines Logo
3:41 pm - 11:22 pm
SJU
-
SDF
7h 41m
1 stop
$306American Airlines
Sat, Sep 19 - Wed, Sep 23
American Airlines Logo
7:31 am - 6:33 pm
SDF
-
SJU
11h 02m
2 stops
American Airlines Logo
7:30 am - 6:00 pm
SJU
-
SDF
10h 30m
2 stops
$311American Airlines
Fri, Aug 21 - Fri, Aug 28

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American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Sep 19
SDF7:27 pmLouisville Intl
15h 33m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 23
SJU2:58 pmSan Juan Luis Munoz Marin Intl
8h 24m
2 stops
SDF11:22 pmLouisville Intl
$261
American Airlines
Sep 25
SDF7:27 pmLouisville Intl
15h 33m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 30
SJU6:27 amSan Juan Luis Munoz Marin Intl
12h 23m
2 stops
SDF6:50 pmLouisville Intl
$271
American Airlines
Aug 21
SDF7:31 amLouisville Intl
11h 02m
2 stops
SJU6:33 pmSan Juan Luis Munoz Marin Intl
Aug 28
SJU7:30 amSan Juan Luis Munoz Marin Intl
10h 29m
1 stop
SDF5:59 pmLouisville Intl
$296

United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
Aug 21
SDF6:00 amLouisville Intl
6h 54m
1 stop
SJU12:54 pmSan Juan Luis Munoz Marin Intl
Aug 28
SJU2:20 pmSan Juan Luis Munoz Marin Intl
7h 55m
1 stop
SDF10:15 pmLouisville Intl
$226
United Airlines
Aug 21
SDF6:00 amLouisville Intl
6h 54m
1 stop
SJU12:54 pmSan Juan Luis Munoz Marin Intl
Aug 24
SJU2:20 pmSan Juan Luis Munoz Marin Intl
7h 55m
1 stop
SDF10:15 pmLouisville Intl
$318
United Airlines
Oct 10
SDF9:04 amLouisville Intl
11h 34m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Oct 16
SJU1:00 amSan Juan Luis Munoz Marin Intl
12h 15m
2 stops
SDF1:15 pmLouisville Intl
$319

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 July 7, 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

Fri 8/21

6:00 am-12:54 pm

1 stop6h 54m

San Juan Luis Munoz Marin Intl

Fri 8/28

2:20 pm-10:15 pm

1 stop7h 55m

$226

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/19

7:27 pm-11:00 am

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Wed 9/23

2:58 pm-11:22 pm

2 stops8h 24m

$261

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/25

7:27 pm-11:00 am

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Wed 9/30

6:27 am-6:50 pm

2 stops12h 23m

$271

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/19

7:27 pm-11:00 am

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Wed 9/23

3:41 pm-11:22 pm

1 stop7h 41m

$276

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/2

8:16 am-2:51 pm

1 stop6h 35m

San Juan Luis Munoz Marin Intl

Mon 9/7

7:03 am-10:59 pm

1 stop15h 56m

$281
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/25

6:00 am-11:45 am

1 stop5h 45m

San Juan Luis Munoz Marin Intl

Wed 9/30

5:59 pm-11:59 pm

1 stop6h 00m

$286

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/21

7:31 am-6:33 pm

2 stops11h 02m

San Juan Luis Munoz Marin Intl

Fri 8/28

7:30 am-5:59 pm

1 stop10h 29m

$296

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 8/12

8:16 am-11:59 pm

1 stop15h 43m

San Juan Luis Munoz Marin Intl

Wed 8/19

7:30 am-11:11 pm

1 stop15h 41m

$301

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/19

6:20 am-2:50 pm

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Wed 9/23

3:41 pm-11:22 pm

1 stop7h 41m

$306

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/21

7:31 am-6:33 pm

2 stops11h 02m

San Juan Luis Munoz Marin Intl

Fri 8/28

7:30 am-6:00 pm

2 stops10h 30m

$311

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 January, then February is your next best option. Flight prices from Louisville to San Juan during February average around $128.

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 $437 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 $387 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 35m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 35m
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 35m 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 $205Free CancellationRating
7.8
8,450 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
American AirlinesPriceFrom $226Free CancellationRating
7.1
11,782 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,944 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