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Cheap flights from Louisville to San Juan from $156

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 8/26. 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.
Multiple Airlines Logo
7:08 pm - 11:38 pm
SDF
-
SJU
28h 30m
1 stop
Multiple Airlines Logo
5:39 pm - 8:29 pm
SJU
-
SDF
27h 50m
1 stop
$235Multiple Airlines
Mon, Oct 26 - Wed, Nov 4
Multiple Airlines Logo
9:10 pm - 4:11 pm
SDF
-
SJU
19h 01m
1 stop
Multiple Airlines Logo
6:35 am - 10:29 am
SJU
-
SDF
27h 54m
1 stop
$275Multiple Airlines
Mon, Aug 17 - Sun, Aug 30
Multiple Airlines Logo
9:10 pm - 4:11 pm
SDF
-
SJU
19h 01m
1 stop
Multiple Airlines Logo
6:35 am - 10:29 am
SJU
-
SDF
27h 54m
1 stop
$285Multiple Airlines
Mon, Aug 17 - Sun, Aug 30
Multiple Airlines Logo
8:30 pm - 12:41 am
SDF
-
SJU
28h 11m
1 stop
Multiple Airlines Logo
6:35 am - 9:49 am
SJU
-
SDF
27h 14m
1 stop
$288Multiple Airlines
Fri, Aug 14 - Thu, Aug 20
Multiple Airlines Logo
8:30 pm - 12:41 am
SDF
-
SJU
28h 11m
1 stop
Multiple Airlines Logo
5:15 pm - 9:49 am
SJU
-
SDF
16h 34m
2 stops
$314Multiple Airlines
Fri, Aug 14 - Thu, Aug 20
Multiple Airlines Logo
9:10 pm - 4:11 pm
SDF
-
SJU
19h 01m
1 stop
Multiple Airlines Logo
8:57 pm - 8:06 pm
SJU
-
SDF
23h 09m
2 stops
$316Multiple Airlines
Mon, Aug 17 - Fri, Aug 21
Multiple Airlines Logo
9:10 pm - 4:11 pm
SDF
-
SJU
19h 01m
1 stop
Multiple Airlines Logo
6:35 am - 9:49 am
SJU
-
SDF
27h 14m
1 stop
$317Multiple Airlines
Fri, Aug 14 - Thu, Aug 20
Multiple Airlines Logo
8:46 pm - 11:59 pm
SDF
-
SJU
27h 13m
1 stop
Multiple Airlines Logo
6:35 am - 10:29 am
SJU
-
SDF
27h 54m
1 stop
$320Multiple Airlines
Sat, Aug 22 - Sun, Aug 30
Multiple Airlines Logo
9:10 pm - 4:11 pm
SDF
-
SJU
19h 01m
1 stop
Multiple Airlines Logo
5:22 pm - 10:32 am
SJU
-
SDF
17h 10m
1 stop
$321Multiple Airlines
Mon, Aug 10 - Sat, Aug 15
Multiple Airlines Logo
7:08 pm - 11:38 pm
SDF
-
SJU
28h 30m
1 stop
Multiple Airlines Logo
3:55 am - 3:26 pm
SJU
-
SDF
12h 31m
2 stops
$322Multiple Airlines
Mon, Oct 26 - Tue, Nov 3

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Delta flights from Louisville to San Juan

Our best Delta deals on Louisville to San Juan flight tickets
Delta
Oct 1
SDF7:05 amLouisville Intl
9h 44m
1 stop
SJU4:49 pmSan Juan Luis Munoz Marin Intl
Oct 4
SJU5:59 pmSan Juan Luis Munoz Marin Intl
6h 00m
1 stop
SDF11:59 pmLouisville Intl
$336
Delta
Sep 17
SDF8:09 amLouisville Intl
8h 40m
1 stop
SJU4:49 pmSan Juan Luis Munoz Marin Intl
Sep 20
SJU2:59 pmSan Juan Luis Munoz Marin Intl
9h 00m
1 stop
SDF11:59 pmLouisville Intl
$406
Delta
Sep 17
SDF8:09 amLouisville Intl
8h 40m
1 stop
SJU4:49 pmSan Juan Luis Munoz Marin Intl
Sep 20
SJU2:59 pmSan Juan Luis Munoz Marin Intl
9h 00m
1 stop
SDF11:59 pmLouisville Intl
$449

Southwest flights from Louisville to San Juan

Our best Southwest deals on Louisville to San Juan flight tickets
Southwest
Oct 23
SDF6:15 pmLouisville Intl
7h 05m
2 stops
SJU1:20 amSan Juan Luis Munoz Marin Intl
Nov 6
SJU5:35 amSan Juan Luis Munoz Marin Intl
10h 30m
2 stops
SDF3:05 pmLouisville Intl
$350
Southwest
Sep 17
SDF2:15 pmLouisville Intl
8h 50m
2 stops
SJU11:05 pmSan Juan Luis Munoz Marin Intl
Sep 27
SJU6:00 amSan Juan Luis Munoz Marin Intl
8h 10m
2 stops
SDF2:10 pmLouisville Intl
$364
Southwest
Sep 16
SDF7:05 amLouisville Intl
11h 05m
2 stops
SJU6:10 pmSan Juan Luis Munoz Marin Intl
Sep 20
SJU5:00 amSan Juan Luis Munoz Marin Intl
9h 10m
2 stops
SDF2:10 pmLouisville Intl
$374

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 24, 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

Mon 10/26

7:08 pm-11:38 pm

1 stop28h 30m

San Juan Luis Munoz Marin Intl

Wed 11/4

5:39 pm-8:29 pm

1 stop27h 50m

$235

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/17

9:10 pm-4:11 pm

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Sun 8/30

6:35 am-10:29 am

1 stop27h 54m

$275

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/17

9:10 pm-4:11 pm

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Sun 8/30

6:35 am-10:29 am

1 stop27h 54m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/14

8:30 pm-12:41 am

1 stop28h 11m

San Juan Luis Munoz Marin Intl

Thu 8/20

6:35 am-9:49 am

1 stop27h 14m

$288

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/14

8:30 pm-12:41 am

1 stop28h 11m

San Juan Luis Munoz Marin Intl

Thu 8/20

5:15 pm-9:49 am

2 stops16h 34m

$314

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/17

9:10 pm-4:11 pm

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Fri 8/21

8:57 pm-8:06 pm

2 stops23h 09m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/14

9:10 pm-4:11 pm

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Thu 8/20

6:35 am-9:49 am

1 stop27h 14m

$317

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 8/22

8:46 pm-11:59 pm

1 stop27h 13m

San Juan Luis Munoz Marin Intl

Sun 8/30

6:35 am-10:29 am

1 stop27h 54m

$320
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

9:10 pm-4:11 pm

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Sat 8/15

5:22 pm-10:32 am

1 stop17h 10m

$321

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 10/26

7:08 pm-11:38 pm

1 stop28h 30m

San Juan Luis Munoz Marin Intl

Tue 11/3

3:55 am-3:26 pm

2 stops12h 31m

$322

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 $404 to $566.
The lowest price recently found on this route was $235.

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in October, then February is your next best option. Flight prices from Louisville to San Juan during February average around $367.

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 $439 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 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 $205Free CancellationRating
7.8
8,481 reviews
Search Delta flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,842 reviews
Search American Airlines flights
SouthwestPriceFrom $245Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
10,026 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