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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 11/11. 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

Delta Logo
3:09 pm - 11:13 pmSDF-SJU
7h 04m1 stop
Delta Logo
7:00 am - 2:04 pmSJU-SDF
8h 04m1 stop
$205Delta
Find Deal
Wed, Nov 12 - Thu, Nov 20
American Airlines Logo
1:35 pm - 11:59 pmSDF-SJU
10h 24m1 stop
American Airlines Logo
5:30 am - 3:05 pmSJU-SDF
9h 35m2 stops
$220American Airlines
Find Deal
Fri, Oct 31 - Sat, Nov 1
United Airlines Logo
8:29 am - 10:22 pmSDF-SJU
12h 53m2 stops
United Airlines Logo
8:10 am - 2:48 pmSJU-SDF
7h 38m1 stop
$225United Airlines
Find Deal
Sun, Jan 25 - Thu, Jan 29
Delta Logo
10:10 am - 5:12 pmSDF-SJU
6h 02m1 stop
Delta Logo
6:15 am - 1:50 pmSJU-SDF
8h 35m1 stop
$236Delta
Find Deal
Tue, Feb 24 - Thu, Mar 5
United Airlines Logo
2:05 pm - 12:36 amSDF-SJU
9h 31m2 stops
United Airlines Logo
2:05 am - 1:28 pmSJU-SDF
12h 23m2 stops
$243United Airlines
Find Deal
Sat, Jan 24 - Fri, Jan 30
American Airlines Logo
1:00 pm - 11:40 pmSDF-SJU
9h 40m1 stop
American Airlines Logo
7:15 am - 5:47 pmSJU-SDF
11h 32m2 stops
$251American Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 13
American Airlines Logo
7:54 am - 4:08 pmSDF-SJU
7h 14m1 stop
American Airlines Logo
6:30 am - 2:29 pmSJU-SDF
8h 59m2 stops
$256American Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
Spirit Airlines Logo
6:58 pm - 10:56 amSDF-SJU
15h 58m1 stop
Spirit Airlines Logo
2:49 am - 5:55 pmSJU-SDF
15h 06m1 stop
$326Spirit Airlines
Find Deal
Sat, Oct 11 - Tue, Oct 14
Spirit Airlines Logo
6:00 am - 7:21 pmSDF-SJU
12h 21m1 stop
Spirit Airlines Logo
10:57 am - 11:45 pmSJU-SDF
13h 48m1 stop
$336Spirit Airlines
Find Deal
Thu, Nov 6 - Tue, Nov 11
Southwest Logo
3:10 pm - 11:45 pmSDF-SJU
8h 35m1 stop
Southwest Logo
5:00 am - 3:50 pmSJU-SDF
10h 50m1 stop
$345Southwest
Find Deal
Sat, Oct 4 - Sat, Oct 11

Delta flights from Louisville to San Juan

Our best Delta deals on Louisville to San Juan flight tickets
Delta
Nov 12
SDF3:09 pmLouisville Intl
7h 04m
1 stop
SJU11:13 pmSan Juan Luis Munoz Marin Intl
Nov 20
SJU7:00 amSan Juan Luis Munoz Marin Intl
8h 04m
1 stop
SDF2:04 pmLouisville Intl
$205
Find similar
Delta
Feb 24
SDF10:10 amLouisville Intl
6h 02m
1 stop
SJU5:12 pmSan Juan Luis Munoz Marin Intl
Mar 5
SJU6:15 amSan Juan Luis Munoz Marin Intl
8h 35m
1 stop
SDF1:50 pmLouisville Intl
$236
Find similar
Delta
Feb 23
SDF10:10 amLouisville Intl
9h 20m
1 stop
SJU8:30 pmSan Juan Luis Munoz Marin Intl
Mar 5
SJU6:15 amSan Juan Luis Munoz Marin Intl
6h 22m
1 stop
SDF11:37 amLouisville Intl
$290
Find similar

United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
Jan 25
SDF8:29 amLouisville Intl
12h 53m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 29
SJU8:10 amSan Juan Luis Munoz Marin Intl
7h 38m
1 stop
SDF2:48 pmLouisville Intl
$225
Find similar
United Airlines
Jan 24
SDF2:05 pmLouisville Intl
9h 31m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 30
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 23m
2 stops
SDF1:28 pmLouisville Intl
$243
Find similar
United Airlines
Jan 24
SDF2:10 pmLouisville Intl
7h 12m
1 stop
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 30
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 23m
2 stops
SDF1:28 pmLouisville Intl
$263
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 3, 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

Wed 11/12

3:09 pm-11:13 pm

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Thu 11/20

7:00 am-2:04 pm

1 stop8h 04m

$205

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 10/31

1:35 pm-11:59 pm

1 stop10h 24m

San Juan Luis Munoz Marin Intl

Sat 11/1

5:30 am-3:05 pm

2 stops9h 35m

$220

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/25

8:29 am-10:22 pm

2 stops12h 53m

San Juan Luis Munoz Marin Intl

Thu 1/29

8:10 am-2:48 pm

1 stop7h 38m

$225

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

10:10 am-5:12 pm

1 stop6h 02m

San Juan Luis Munoz Marin Intl

Thu 3/5

6:15 am-1:50 pm

1 stop8h 35m

$236

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 1/24

2:05 pm-12:36 am

2 stops9h 31m

San Juan Luis Munoz Marin Intl

Fri 1/30

2:05 am-1:28 pm

2 stops12h 23m

$243

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 1/12

1:00 pm-11:40 pm

1 stop9h 40m

San Juan Luis Munoz Marin Intl

Tue 1/13

7:15 am-5:47 pm

2 stops11h 32m

$251

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 1/13

7:54 am-4:08 pm

1 stop7h 14m

San Juan Luis Munoz Marin Intl

Tue 1/20

6:30 am-2:29 pm

2 stops8h 59m

$256

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 10/11

6:58 pm-10:56 am

1 stop15h 58m

San Juan Luis Munoz Marin Intl

Tue 10/14

2:49 am-5:55 pm

1 stop15h 06m

$326

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 11/6

6:00 am-7:21 pm

1 stop12h 21m

San Juan Luis Munoz Marin Intl

Tue 11/11

10:57 am-11:45 pm

1 stop13h 48m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 10/4

3:10 pm-11:45 pm

1 stop8h 35m

San Juan Luis Munoz Marin Intl

Sat 10/11

5:00 am-3:50 pm

1 stop10h 50m

$345

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 cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in October, then January is your next best option. Flight prices from Louisville to San Juan during January average around $369.

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 $441 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 02m 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
8,012 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
DeltaPriceFrom $225Free CancellationRating
7.9
7,973 reviews
Search Delta flights
American AirlinesPriceFrom $263Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
8,937 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