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Cheap flights from Louisville to San Juan from $113

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 10/26. 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
0 bags

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Find the cheapest flights from Louisville to San Juan

Cheap round-trip flights

American Airlines Logo
5:47 am - 10:14 pmSDF-SJU
15h 27m1 stop
American Airlines Logo
6:30 am - 9:02 pmSJU-SDF
15h 32m1 stop
$225American Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 3
American Airlines Logo
8:18 am - 10:10 pmSDF-SJU
13h 52m1 stop
American Airlines Logo
4:56 pm - 11:43 pmSJU-SDF
7h 47m1 stop
$226American Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
12:40 pm - 11:49 pmSDF-SJU
10h 09m1 stop
Delta Logo
6:15 am - 11:37 amSJU-SDF
6h 22m1 stop
$265Delta
Find Deal
Mon, Feb 23 - Thu, Mar 5
Delta Logo
12:48 pm - 10:00 pmSDF-SJU
9h 12m1 stop
Delta Logo
2:26 pm - 11:52 pmSJU-SDF
9h 26m1 stop
$305Delta
Find Deal
Tue, Sep 30 - Thu, Oct 2
United Airlines Logo
11:10 am - 9:00 pmSDF-SJU
8h 50m1 stop
United Airlines Logo
8:10 am - 2:48 pmSJU-SDF
7h 38m1 stop
$310United Airlines
Find Deal
Wed, Jan 21 - Thu, Jan 22
United Airlines Logo
8:29 am - 10:22 pmSDF-SJU
12h 53m2 stops
United Airlines Logo
8:10 am - 8:28 pmSJU-SDF
13h 18m2 stops
$315United Airlines
Find Deal
Mon, Jan 19 - Thu, Jan 22
Spirit Airlines Logo
8:23 am - 2:11 pmSDF-SJU
29h 48m3 stops
Spirit Airlines Logo
11:59 am - 10:04 pmSJU-SDF
10h 05m1 stop
$328Spirit Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
Spirit Airlines Logo
8:23 am - 2:11 pmSDF-SJU
29h 48m2 stops
Spirit Airlines Logo
11:59 am - 10:04 pmSJU-SDF
10h 05m1 stop
$339Spirit Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
Southwest Logo
3:20 pm - 11:20 pmSDF-SJU
7h 00m1 stop
Southwest Logo
6:40 am - 3:55 pmSJU-SDF
10h 15m2 stops
$360Southwest
Find Deal
Mon, Nov 17 - Mon, Nov 24
Southwest Logo
5:35 am - 7:05 pmSDF-SJU
12h 30m2 stops
Southwest Logo
6:10 am - 4:50 pmSJU-SDF
11h 40m2 stops
$402Southwest
Find Deal
Tue, Feb 24 - Wed, Mar 4

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Jan 27
SDF5:47 amLouisville Intl
15h 27m
1 stop
SJU10:14 pmSan Juan Luis Munoz Marin Intl
Feb 3
SJU6:30 amSan Juan Luis Munoz Marin Intl
15h 32m
1 stop
SDF9:02 pmLouisville Intl
$225
Find similar
American Airlines
Oct 30
SDF8:18 amLouisville Intl
13h 52m
1 stop
SJU10:10 pmSan Juan Luis Munoz Marin Intl
Nov 6
SJU4:56 pmSan Juan Luis Munoz Marin Intl
7h 47m
1 stop
SDF11:43 pmLouisville Intl
$226
Find similar
American Airlines
Mar 3
SDF11:08 amLouisville Intl
11h 22m
1 stop
SJU11:30 pmSan Juan Luis Munoz Marin Intl
Mar 4
SJU10:26 amSan Juan Luis Munoz Marin Intl
15h 03m
1 stop
SDF12:29 amLouisville Intl
$280
Find similar

Delta flights from Louisville to San Juan

Our best Delta deals on Louisville to San Juan flight tickets
Delta
Feb 23
SDF12:40 pmLouisville Intl
10h 09m
1 stop
SJU11:49 pmSan Juan Luis Munoz Marin Intl
Mar 5
SJU6:15 amSan Juan Luis Munoz Marin Intl
6h 22m
1 stop
SDF11:37 amLouisville Intl
$265
Find similar
Delta
Sep 30
SDF12:48 pmLouisville Intl
9h 12m
1 stop
SJU10:00 pmSan Juan Luis Munoz Marin Intl
Oct 2
SJU2:26 pmSan Juan Luis Munoz Marin Intl
9h 26m
1 stop
SDF11:52 pmLouisville Intl
$305
Find similar
Delta
Feb 22
SDF12:40 pmLouisville Intl
6h 50m
1 stop
SJU8:30 pmSan Juan Luis Munoz Marin Intl
Mar 5
SJU6:15 amSan Juan Luis Munoz Marin Intl
8h 35m
1 stop
SDF1:50 pmLouisville Intl
$311
Find similar

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 September 17, 2025.
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

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 1/27

5:47 am-10:14 pm

1 stop15h 27m

San Juan Luis Munoz Marin Intl

Tue 2/3

6:30 am-9:02 pm

1 stop15h 32m

$225

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 10/30

8:18 am-10:10 pm

1 stop13h 52m

San Juan Luis Munoz Marin Intl

Thu 11/6

4:56 pm-11:43 pm

1 stop7h 47m

$226

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/23

12:40 pm-11:49 pm

1 stop10h 09m

San Juan Luis Munoz Marin Intl

Thu 3/5

6:15 am-11:37 am

1 stop6h 22m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 9/30

12:48 pm-10:00 pm

1 stop9h 12m

San Juan Luis Munoz Marin Intl

Thu 10/2

2:26 pm-11:52 pm

1 stop9h 26m

$305

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 1/21

11:10 am-9:00 pm

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Thu 1/22

8:10 am-2:48 pm

1 stop7h 38m

$310

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 1/19

8:29 am-10:22 pm

2 stops12h 53m

San Juan Luis Munoz Marin Intl

Thu 1/22

8:10 am-8:28 pm

2 stops13h 18m

$315

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/29

8:23 am-2:11 pm

3 stops29h 48m

San Juan Luis Munoz Marin Intl

Thu 10/2

11:59 am-10:04 pm

1 stop10h 05m

$328

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/29

8:23 am-2:11 pm

2 stops29h 48m

San Juan Luis Munoz Marin Intl

Thu 10/2

11:59 am-10:04 pm

1 stop10h 05m

$339

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 11/17

3:20 pm-11:20 pm

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Mon 11/24

6:40 am-3:55 pm

2 stops10h 15m

$360

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

5:35 am-7:05 pm

2 stops12h 30m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:10 am-4:50 pm

2 stops11h 40m

$402

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 October, then September is your next best option. Flight prices from Louisville to San Juan during September average around $368.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Louisville to San Juan is on a Tuesday when prices can be found for as low as $372. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $459.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the evening when flights can be purchased for as low as $339. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $441 on average. Flights to San Juan from Louisville in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight 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 $436 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 $302 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

Direct flights

None
There are no direct flights from Louisville to San Juan. There are no popular flight routes from Louisville to San Juan.
Search flight deals

  • 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 00m 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 $152Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $225Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $263Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
8,926 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