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Cheap flights from Louisville to San Juan from $178

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 11/7. 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
5:10 pm - 12:05 amSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
6h 55m1 stop Baltimore/Washington
Southwest Logo
5:40 am - 12:20 pmSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
6h 40m1 stop Baltimore/Washington
$232Southwest
Thu, Oct 1 - Sat, Oct 3
American Airlines Logo
8:18 pm - 9:46 amSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
13h 28m2 stops Charlotte Douglas Miami
American Airlines Logo
6:30 am - 6:27 pmSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
11h 57m2 stops Miami Charlotte Douglas
$232American Airlines
Mon, Oct 19 - Tue, Oct 27
American Airlines Logo
7:27 pm - 11:00 amSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
15h 33m2 stops Charlotte Douglas Miami
American Airlines Logo
3:41 pm - 11:22 pmSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
7h 41m1 stop Charlotte Douglas
$232American Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
9:09 pm - 11:58 pmSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
26h 49m1 stop Tampa
Multiple Airlines Logo
7:00 am - 10:35 amSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
27h 35m1 stop Fort Lauderdale
$283Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Southwest Logo
5:10 pm - 12:05 amSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
6h 55m1 stop Baltimore/Washington
Southwest Logo
5:40 am - 2:55 pmSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
9h 15m2 stops Baltimore/Washington Nashville Intl
$284Southwest
Thu, Oct 1 - Sat, Oct 3
Multiple Airlines Logo
8:46 pm - 11:59 pmSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
27h 13m1 stop Raleigh-Durham
Multiple Airlines Logo
4:39 pm - 10:11 amSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
41h 32m2 stops Tampa Raleigh-Durham
$317Multiple Airlines
Sat, Aug 29 - Thu, Sep 10
Delta Logo
6:00 am - 11:46 amSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
5h 46m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:59 pm - 11:59 pmSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
6h 00m1 stop Atlanta Hartsfield-Jackson
$336Delta
Tue, Sep 1 - Thu, Sep 10
Delta Logo
1:59 pm - 11:18 pmSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
8h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:35 pm - 12:05 amSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
6h 30m1 stop Atlanta Hartsfield-Jackson
$356Delta
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
9:45 am - 8:38 pmSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
10h 53m1 stop Houston George Bush Intcntl
United Airlines Logo
3:56 pm - 11:59 pmSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
8h 03m1 stop Chicago O'Hare Intl
$356United Airlines
Thu, Sep 17 - Thu, Sep 24
United Airlines Logo
9:00 am - 8:38 pmSDF  Louisville Intl-SJU San Juan Luis Munoz Marin Intl
11h 38m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
1:00 am - 1:11 pmSJU  San Juan Luis Munoz Marin Intl-SDF Louisville Intl
12h 11m2 stops Newark Chicago O'Hare Intl
$356United Airlines
Sat, Sep 5 - Fri, Sep 11

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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
Oct 19
SDF8:18 pmLouisville Intl
13h 28m
2 stops
SJU9:46 amSan Juan Luis Munoz Marin Intl
Oct 27
SJU6:30 amSan Juan Luis Munoz Marin Intl
11h 57m
2 stops
SDF6:27 pmLouisville Intl
$232
American Airlines
Sep 12
SDF7:27 pmLouisville Intl
15h 33m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
Sep 18
SJU3:41 pmSan Juan Luis Munoz Marin Intl
7h 41m
1 stop
SDF11:22 pmLouisville Intl
$237
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
$284

United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
Sep 5
SDF9:45 amLouisville Intl
10h 53m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Sep 11
SJU1:25 pmSan Juan Luis Munoz Marin Intl
9h 34m
1 stop
SDF10:59 pmLouisville Intl
$356
United Airlines
Oct 17
SDF10:13 amLouisville Intl
13h 37m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 24
SJU1:25 pmSan Juan Luis Munoz Marin Intl
10h 34m
2 stops
SDF11:59 pmLouisville Intl
$376
United Airlines
Dec 9
SDF9:00 amLouisville Intl
12h 22m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Dec 14
SJU4:52 pmSan Juan Luis Munoz Marin Intl
8h 03m
1 stop
SDF11:55 pmLouisville Intl
$424

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 August 16, 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 Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Thu 10/1

5:10 pm-12:05 am

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Sat 10/3

5:40 am-12:20 pm

1 stop6h 40m

$232

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Mon 10/19

8:18 pm-9:46 am

2 stops13h 28m

San Juan Luis Munoz Marin Intl

Tue 10/27

6:30 am-6:27 pm

2 stops11h 57m

$232

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Thu 9/17

7:27 pm-11:00 am

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Thu 9/24

3:41 pm-11:22 pm

1 stop7h 41m

$232

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Thu 9/17

9:09 pm-11:58 pm

1 stop26h 49m

San Juan Luis Munoz Marin Intl

Thu 9/24

7:00 am-10:35 am

1 stop27h 35m

$283

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Thu 10/1

5:10 pm-12:05 am

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Sat 10/3

5:40 am-2:55 pm

2 stops9h 15m

$284

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Sat 8/29

8:46 pm-11:59 pm

1 stop27h 13m

San Juan Luis Munoz Marin Intl

Thu 9/10

4:39 pm-10:11 am

2 stops41h 32m

$317
Quickest round-trip

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Tue 9/1

6:00 am-11:46 am

1 stop5h 46m

San Juan Luis Munoz Marin Intl

Thu 9/10

5:59 pm-11:59 pm

1 stop6h 00m

$336

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Thu 11/5

1:59 pm-11:18 pm

1 stop8h 19m

San Juan Luis Munoz Marin Intl

Mon 11/9

6:35 pm-12:05 am

1 stop6h 30m

$356

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Thu 9/17

9:45 am-8:38 pm

1 stop10h 53m

San Juan Luis Munoz Marin Intl

Thu 9/24

3:56 pm-11:59 pm

1 stop8h 03m

$356

LouisvilleSan Juan

SDF Louisville Intl - SJU San Juan Luis Munoz Marin Intl

SDFSJU

Louisville Intl

Sat 9/5

9:00 am-8:38 pm

2 stops11h 38m

San Juan Luis Munoz Marin Intl

Fri 9/11

1:00 am-1:11 pm

2 stops12h 11m

$356

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?

Prices are currently low for flights on this route.

Typical prices usually range from $316 to $506.
The lowest price recently found on this route was $232.

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in February, then October is your next best option. Flight prices from Louisville to San Juan during October average around $370.

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 $445 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 $359 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 45m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 45m
There are no direct flights from Louisville to San Juan. There are no popular flight routes from Louisville to San Juan.
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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 45m 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
8,502 reviews
Search Delta flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,950 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
10,104 reviews
Search United Airlines flights
SouthwestPriceFrom $265Free CancellationRating
8.0
4,217 reviews
Search Southwest 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