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Cheap flights from Louisville to San Juan from $110

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 8/8. 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.
American Airlines Logo
7:27 pm - 11:00 am
SDF
-
SJU
15h 33m
2 stops
American Airlines Logo
2:22 pm - 10:55 pm
SJU
-
SDF
8h 33m
1 stop
$220American Airlines
Fri, Sep 25 - Wed, Sep 30
Delta Logo
7:05 am - 4:49 pm
SDF
-
SJU
9h 44m
1 stop
Delta Logo
5:59 pm - 11:59 pm
SJU
-
SDF
6h 00m
1 stop
$226Delta
Wed, Sep 9 - Thu, Sep 17
United Airlines Logo
6:00 am - 12:34 pm
SDF
-
SJU
6h 34m
1 stop
United Airlines Logo
7:00 am - 8:36 pm
SJU
-
SDF
13h 36m
2 stops
$236United Airlines
Mon, Aug 10 - Thu, Aug 20
United Airlines Logo
7:10 am - 8:38 pm
SDF
-
SJU
13h 28m
2 stops
United Airlines Logo
2:55 pm - 10:59 pm
SJU
-
SDF
8h 04m
1 stop
$252United Airlines
Fri, Sep 11 - Mon, Sep 14
Multiple Airlines Logo
8:30 pm - 12:41 am
SDF
-
SJU
28h 11m
1 stop
Multiple Airlines Logo
6:00 am - 8:20 pm
SJU
-
SDF
14h 20m
1 stop
$257Multiple Airlines
Mon, Aug 10 - Fri, Aug 14
American Airlines Logo
7:31 am - 6:33 pm
SDF
-
SJU
11h 02m
2 stops
American Airlines Logo
7:03 am - 5:59 pm
SJU
-
SDF
10h 56m
2 stops
$260American Airlines
Mon, Aug 10 - Thu, Aug 20
Southwest Logo
4:10 pm - 11:05 pm
SDF
-
SJU
6h 55m
1 stop
Southwest Logo
6:00 am - 1:35 pm
SJU
-
SDF
7h 35m
1 stop
$263Southwest
Mon, Aug 10 - Thu, Aug 20
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
$267American Airlines
Wed, Sep 16 - Thu, Sep 24
American Airlines Logo
8:16 am - 6:33 pm
SDF
-
SJU
10h 17m
2 stops
American Airlines Logo
7:03 am - 5:48 pm
SJU
-
SDF
10h 45m
1 stop
$268American Airlines
Tue, Sep 1 - Sun, Sep 6
Delta Logo
7:05 am - 1:42 pm
SDF
-
SJU
6h 37m
1 stop
Delta Logo
5:59 pm - 11:59 pm
SJU
-
SDF
6h 00m
1 stop
$271Delta
Sun, Sep 6 - Thu, Sep 17

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United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
Aug 10
SDF6:00 amLouisville Intl
6h 34m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
Aug 20
SJU7:00 amSan Juan Luis Munoz Marin Intl
13h 36m
2 stops
SDF8:36 pmLouisville Intl
$236
United Airlines
Sep 11
SDF7:10 amLouisville Intl
13h 28m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Sep 14
SJU2:55 pmSan Juan Luis Munoz Marin Intl
8h 04m
1 stop
SDF10:59 pmLouisville Intl
$252
United Airlines
Sep 18
SDF6:00 amLouisville Intl
6h 54m
1 stop
SJU12:54 pmSan Juan Luis Munoz Marin Intl
Sep 27
SJU1:25 pmSan Juan Luis Munoz Marin Intl
10h 24m
1 stop
SDF11:49 pmLouisville Intl
$300

Southwest flights from Louisville to San Juan

Our best Southwest deals on Louisville to San Juan flight tickets
Southwest
Aug 10
SDF4:10 pmLouisville Intl
6h 55m
1 stop
SJU11:05 pmSan Juan Luis Munoz Marin Intl
Aug 20
SJU6:00 amSan Juan Luis Munoz Marin Intl
7h 35m
1 stop
SDF1:35 pmLouisville Intl
$263
Southwest
Nov 4
SDF5:40 amLouisville Intl
8h 30m
2 stops
SJU3:10 pmSan Juan Luis Munoz Marin Intl
Nov 11
SJU6:45 amSan Juan Luis Munoz Marin Intl
7h 10m
1 stop
SDF12:55 pmLouisville Intl
$303
Southwest
Sep 8
SDF12:50 pmLouisville Intl
6h 10m
1 stop
SJU7:00 pmSan Juan Luis Munoz Marin Intl
Sep 12
SJU5:55 amSan Juan Luis Munoz Marin Intl
6h 45m
1 stop
SDF12:40 pmLouisville Intl
$315

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 12, 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 9/25

7:27 pm-11:00 am

2 stops15h 33m

San Juan Luis Munoz Marin Intl

Wed 9/30

2:22 pm-10:55 pm

1 stop8h 33m

$220

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/9

7:05 am-4:49 pm

1 stop9h 44m

San Juan Luis Munoz Marin Intl

Thu 9/17

5:59 pm-11:59 pm

1 stop6h 00m

$226

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

6:00 am-12:34 pm

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Thu 8/20

7:00 am-8:36 pm

2 stops13h 36m

$236

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/11

7:10 am-8:38 pm

2 stops13h 28m

San Juan Luis Munoz Marin Intl

Mon 9/14

2:55 pm-10:59 pm

1 stop8h 04m

$252

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

8:30 pm-12:41 am

1 stop28h 11m

San Juan Luis Munoz Marin Intl

Fri 8/14

6:00 am-8:20 pm

1 stop14h 20m

$257

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

7:31 am-6:33 pm

2 stops11h 02m

San Juan Luis Munoz Marin Intl

Thu 8/20

7:03 am-5:59 pm

2 stops10h 56m

$260

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

4:10 pm-11:05 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Thu 8/20

6:00 am-1:35 pm

1 stop7h 35m

$263

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 9/16

6:20 am-2:50 pm

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Thu 9/24

3:41 pm-11:22 pm

1 stop7h 41m

$267

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 9/1

8:16 am-6:33 pm

2 stops10h 17m

San Juan Luis Munoz Marin Intl

Sun 9/6

7:03 am-5:48 pm

1 stop10h 45m

$268
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 9/6

7:05 am-1:42 pm

1 stop6h 37m

San Juan Luis Munoz Marin Intl

Thu 9/17

5:59 pm-11:59 pm

1 stop6h 00m

$271

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 $438 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

6h 05m

Direct flights

None
The fastest flight from Louisville to San Juan takes 6h 05m
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 6h 05m 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
8,458 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,251 reviews
Search Southwest flights
American AirlinesPriceFrom $226Free CancellationRating
7.1
11,804 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,980 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