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Cheap flights from Louisville to San Juan from $101

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 4/11. 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

Enter your travel dates to find the best prices.
Delta Logo
5:35 pm - 11:15 pm
SDF
-
SJU
5h 40m
1 stop
Delta Logo
7:30 am - 2:31 pm
SJU
-
SDF
7h 01m
1 stop
$241Delta
Mon, Mar 23 - Wed, Apr 15
American Airlines Logo
5:41 pm - 4:32 am
SDF
-
SJU
10h 51m
1 stop
American Airlines Logo
7:25 am - 9:28 pm
SJU
-
SDF
14h 03m
1 stop
$256American Airlines
Mon, Apr 13 - Sat, Apr 18
American Airlines Logo
6:06 am - 12:29 pm
SDF
-
SJU
6h 23m
1 stop
American Airlines Logo
10:03 am - 7:02 pm
SJU
-
SDF
8h 59m
2 stops
$257American Airlines
Wed, Apr 15 - Wed, Apr 22
American Airlines Logo
7:52 pm - 10:48 am
SDF
-
SJU
14h 56m
1 stop
American Airlines Logo
1:31 pm - 10:08 pm
SJU
-
SDF
8h 37m
2 stops
$269American Airlines
Thu, May 7 - Wed, May 13
Delta Logo
6:00 am - 1:27 pm
SDF
-
SJU
7h 27m
1 stop
Delta Logo
7:30 am - 2:31 pm
SJU
-
SDF
7h 01m
1 stop
$281Delta
Tue, Mar 24 - Wed, Apr 15
American Airlines Logo
1:19 pm - 10:05 pm
SDF
-
SJU
8h 46m
1 stop
American Airlines Logo
11:59 pm - 10:11 am
SJU
-
SDF
10h 12m
1 stop
$296American Airlines
Thu, Apr 30 - Sat, May 2
Multiple Airlines Logo
2:27 pm - 11:28 pm
SDF
-
SJU
9h 01m
1 stop
Multiple Airlines Logo
4:22 pm - 8:20 pm
SJU
-
SDF
27h 58m
2 stops
$304Multiple Airlines
Sun, May 24 - Thu, May 28
Southwest Logo
4:45 pm - 11:40 pm
SDF
-
SJU
6h 55m
1 stop
Southwest Logo
5:05 am - 3:00 pm
SJU
-
SDF
9h 55m
2 stops
$309Southwest
Thu, May 14 - Mon, May 18
Multiple Airlines Logo
2:27 pm - 11:28 pm
SDF
-
SJU
9h 01m
1 stop
Multiple Airlines Logo
5:56 pm - 8:20 pm
SJU
-
SDF
26h 24m
1 stop
$313Multiple Airlines
Sun, May 24 - Thu, May 28
American Airlines Logo
7:36 am - 11:02 pm
SDF
-
SJU
15h 26m
1 stop
American Airlines Logo
7:25 am - 10:08 pm
SJU
-
SDF
14h 43m
1 stop
$329American Airlines
Tue, Apr 21 - Mon, Apr 27

Delta flights from Louisville to San Juan

Our best Delta deals on Louisville to San Juan flight tickets
Delta
Mar 23
SDF5:35 pmLouisville Intl
5h 40m
1 stop
SJU11:15 pmSan Juan Luis Munoz Marin Intl
Apr 15
SJU7:30 amSan Juan Luis Munoz Marin Intl
7h 01m
1 stop
SDF2:31 pmLouisville Intl
$241
Delta
Mar 24
SDF6:00 amLouisville Intl
7h 27m
1 stop
SJU1:27 pmSan Juan Luis Munoz Marin Intl
Apr 15
SJU7:30 amSan Juan Luis Munoz Marin Intl
7h 01m
1 stop
SDF2:31 pmLouisville Intl
$281
Delta
Mar 25
SDF7:05 amLouisville Intl
9h 13m
1 stop
SJU4:18 pmSan Juan Luis Munoz Marin Intl
Apr 15
SJU6:15 amSan Juan Luis Munoz Marin Intl
8h 16m
1 stop
SDF2:31 pmLouisville Intl
$373

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Apr 13
SDF5:41 pmLouisville Intl
10h 51m
1 stop
SJU4:32 amSan Juan Luis Munoz Marin Intl
Apr 18
SJU7:25 amSan Juan Luis Munoz Marin Intl
14h 03m
1 stop
SDF9:28 pmLouisville Intl
$256
American Airlines
Apr 15
SDF6:06 amLouisville Intl
6h 23m
1 stop
SJU12:29 pmSan Juan Luis Munoz Marin Intl
Apr 22
SJU10:03 amSan Juan Luis Munoz Marin Intl
8h 59m
2 stops
SDF7:02 pmLouisville Intl
$257
American Airlines
May 7
SDF7:52 pmLouisville Intl
14h 56m
1 stop
SJU10:48 amSan Juan Luis Munoz Marin Intl
May 13
SJU1:31 pmSan Juan Luis Munoz Marin Intl
8h 37m
2 stops
SDF10:08 pmLouisville Intl
$269

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 March 2, 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

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 3/23

5:35 pm-11:15 pm

1 stop5h 40m

San Juan Luis Munoz Marin Intl

Wed 4/15

7:30 am-2:31 pm

1 stop7h 01m

$241

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 4/13

5:41 pm-4:32 am

1 stop10h 51m

San Juan Luis Munoz Marin Intl

Sat 4/18

7:25 am-9:28 pm

1 stop14h 03m

$256

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 4/15

6:06 am-12:29 pm

1 stop6h 23m

San Juan Luis Munoz Marin Intl

Wed 4/22

10:03 am-7:02 pm

2 stops8h 59m

$257

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 5/7

7:52 pm-10:48 am

1 stop14h 56m

San Juan Luis Munoz Marin Intl

Wed 5/13

1:31 pm-10:08 pm

2 stops8h 37m

$269

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 3/24

6:00 am-1:27 pm

1 stop7h 27m

San Juan Luis Munoz Marin Intl

Wed 4/15

7:30 am-2:31 pm

1 stop7h 01m

$281

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/30

1:19 pm-10:05 pm

1 stop8h 46m

San Juan Luis Munoz Marin Intl

Sat 5/2

11:59 pm-10:11 am

1 stop10h 12m

$296

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 5/24

2:27 pm-11:28 pm

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Thu 5/28

4:22 pm-8:20 pm

2 stops27h 58m

$304

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 5/14

4:45 pm-11:40 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Mon 5/18

5:05 am-3:00 pm

2 stops9h 55m

$309

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 5/24

2:27 pm-11:28 pm

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Thu 5/28

5:56 pm-8:20 pm

1 stop26h 24m

$313

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 4/21

7:36 am-11:02 pm

1 stop15h 26m

San Juan Luis Munoz Marin Intl

Mon 4/27

7:25 am-10:08 pm

1 stop14h 43m

$329

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 $345.

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 $426 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 $344 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

  • 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 $189Free CancellationRating
6.3
8,487 reviews
Search Spirit Airlines flights
DeltaPriceFrom $205Free CancellationRating
7.9
8,237 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,306 reviews
Search Southwest flights
American AirlinesPriceFrom $246Free CancellationRating
7.1
11,369 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,375 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