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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 7/5. 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.
Delta Logo
6:00 am - 11:40 am
SDF
-
SJU
5h 40m
1 stop
Delta Logo
5:49 pm - 12:24 am
SJU
-
SDF
6h 35m
1 stop
$316Delta
Tue, Jul 21 - Wed, Aug 5
Delta Logo
10:00 am - 8:45 pm
SDF
-
SJU
10h 45m
1 stop
Delta Logo
2:59 pm - 9:29 pm
SJU
-
SDF
6h 30m
1 stop
$363Delta
Thu, Jul 30 - Tue, Aug 4
Southwest Logo
3:00 pm - 12:25 am
SDF
-
SJU
9h 25m
1 stop
Southwest Logo
10:20 pm - 10:10 am
SJU
-
SDF
11h 50m
1 stop
$368Southwest
Mon, Jun 29 - Thu, Jul 9
American Airlines Logo
6:48 am - 6:24 pm
SDF
-
SJU
11h 36m
2 stops
American Airlines Logo
7:00 am - 5:59 pm
SJU
-
SDF
10h 59m
2 stops
$381American Airlines
Tue, Jul 21 - Wed, Aug 5
United Airlines Logo
10:04 am - 8:34 pm
SDF
-
SJU
10h 30m
1 stop
United Airlines Logo
7:40 am - 5:03 pm
SJU
-
SDF
9h 23m
1 stop
$394United Airlines
Sat, Aug 1 - Fri, Aug 7
Multiple Airlines Logo
8:48 pm - 4:05 pm
SDF
-
SJU
19h 17m
1 stop
Multiple Airlines Logo
5:15 pm - 7:58 pm
SJU
-
SDF
26h 43m
2 stops
$398Multiple Airlines
Mon, Jul 6 - Thu, Jul 23
Multiple Airlines Logo
12:16 pm - 4:05 pm
SDF
-
SJU
27h 49m
1 stop
Multiple Airlines Logo
5:15 pm - 7:58 pm
SJU
-
SDF
26h 43m
2 stops
$399Multiple Airlines
Wed, Jul 8 - Thu, Jul 23
United Airlines Logo
1:48 pm - 9:24 pm
SDF
-
SJU
7h 36m
1 stop
United Airlines Logo
7:20 am - 2:37 pm
SJU
-
SDF
7h 17m
1 stop
$405United Airlines
Fri, Jun 12 - Tue, Jun 16
United Airlines Logo
7:25 am - 3:42 pm
SDF
-
SJU
8h 17m
1 stop
United Airlines Logo
2:20 pm - 10:15 pm
SJU
-
SDF
7h 55m
1 stop
$406United Airlines
Sat, Aug 22 - Wed, Aug 26
Delta Logo
8:10 am - 4:39 pm
SDF
-
SJU
8h 29m
1 stop
Delta Logo
5:50 pm - 12:26 am
SJU
-
SDF
6h 36m
1 stop
$410Delta
Wed, Jul 8 - Wed, Jul 22

Southwest flights from Louisville to San Juan

Our best Southwest deals on Louisville to San Juan flight tickets
Southwest
Jun 29
SDF3:00 pmLouisville Intl
9h 25m
1 stop
SJU12:25 amSan Juan Luis Munoz Marin Intl
Jul 9
SJU10:20 pmSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
SDF10:10 amLouisville Intl
$368
Southwest
Jun 29
SDF6:05 pmLouisville Intl
7h 15m
2 stops
SJU1:20 amSan Juan Luis Munoz Marin Intl
Jul 9
SJU10:20 pmSan Juan Luis Munoz Marin Intl
11h 50m
1 stop
SDF10:10 amLouisville Intl
$426
Southwest
Jul 31
SDF10:50 amLouisville Intl
12h 50m
1 stop
SJU11:40 pmSan Juan Luis Munoz Marin Intl
Aug 3
SJU7:00 amSan Juan Luis Munoz Marin Intl
9h 25m
2 stops
SDF4:25 pmLouisville Intl
$428

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Jul 21
SDF6:48 amLouisville Intl
11h 36m
2 stops
SJU6:24 pmSan Juan Luis Munoz Marin Intl
Aug 5
SJU7:00 amSan Juan Luis Munoz Marin Intl
10h 59m
2 stops
SDF5:59 pmLouisville Intl
$381
American Airlines
Jun 29
SDF6:51 amLouisville Intl
17h 08m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Jul 10
SJU10:35 amSan Juan Luis Munoz Marin Intl
12h 28m
2 stops
SDF11:03 pmLouisville Intl
$413
American Airlines
Jul 21
SDF6:48 amLouisville Intl
11h 36m
2 stops
SJU6:24 pmSan Juan Luis Munoz Marin Intl
Aug 5
SJU6:51 amSan Juan Luis Munoz Marin Intl
11h 08m
2 stops
SDF5:59 pmLouisville Intl
$421

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 May 26, 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
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 7/21

6:00 am-11:40 am

1 stop5h 40m

San Juan Luis Munoz Marin Intl

Wed 8/5

5:49 pm-12:24 am

1 stop6h 35m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 7/30

10:00 am-8:45 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Tue 8/4

2:59 pm-9:29 pm

1 stop6h 30m

$363

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 6/29

3:00 pm-12:25 am

1 stop9h 25m

San Juan Luis Munoz Marin Intl

Thu 7/9

10:20 pm-10:10 am

1 stop11h 50m

$368

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 7/21

6:48 am-6:24 pm

2 stops11h 36m

San Juan Luis Munoz Marin Intl

Wed 8/5

7:00 am-5:59 pm

2 stops10h 59m

$381

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 8/1

10:04 am-8:34 pm

1 stop10h 30m

San Juan Luis Munoz Marin Intl

Fri 8/7

7:40 am-5:03 pm

1 stop9h 23m

$394

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 7/6

8:48 pm-4:05 pm

1 stop19h 17m

San Juan Luis Munoz Marin Intl

Thu 7/23

5:15 pm-7:58 pm

2 stops26h 43m

$398

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 7/8

12:16 pm-4:05 pm

1 stop27h 49m

San Juan Luis Munoz Marin Intl

Thu 7/23

5:15 pm-7:58 pm

2 stops26h 43m

$399

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 6/12

1:48 pm-9:24 pm

1 stop7h 36m

San Juan Luis Munoz Marin Intl

Tue 6/16

7:20 am-2:37 pm

1 stop7h 17m

$405

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 8/22

7:25 am-3:42 pm

1 stop8h 17m

San Juan Luis Munoz Marin Intl

Wed 8/26

2:20 pm-10:15 pm

1 stop7h 55m

$406

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 7/8

8:10 am-4:39 pm

1 stop8h 29m

San Juan Luis Munoz Marin Intl

Wed 7/22

5:50 pm-12:26 am

1 stop6h 36m

$410

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 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 $428 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 $380 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 40m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 40m
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 40m 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 $176Free CancellationRating
6.2
Search Spirit Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,424 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,265 reviews
Search Southwest flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,630 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,750 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