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Cheap flights from Louisville to San Juan from $106

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 5/11. 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
1 adult, Economy, 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.
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$232Spirit Airlines
Fri, May 1 - Thu, May 7
Spirit Airlines Logo
10:33 am - 6:59 pm
SDF
-
SJU
8h 26m
1 stop
Spirit Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$233Spirit Airlines
Fri, May 8 - Sun, May 10
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
12:57 pm - 5:04 pm
SJU
-
SDF
28h 07m
1 stop
$258Spirit Airlines
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Multiple Airlines Logo
6:00 am - 5:04 pm
SJU
-
SDF
11h 04m
1 stop
$261Multiple Airlines
Fri, Apr 24 - Fri, May 1
Spirit Airlines Logo
6:06 pm - 12:54 am
SDF
-
SJU
30h 48m
2 stops
Spirit Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$265Spirit Airlines
Fri, May 1 - Thu, May 7
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$267Spirit Airlines
Fri, May 1 - Fri, May 8
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
12:57 pm - 5:04 pm
SJU
-
SDF
28h 07m
1 stop
$268Spirit Airlines
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
6:06 pm - 12:29 am
SDF
-
SJU
30h 23m
2 stops
Multiple Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$271Multiple Airlines
Fri, May 1 - Thu, May 7
Multiple Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Multiple Airlines Logo
2:30 pm - 9:03 am
SJU
-
SDF
42h 33m
2 stops
$275Multiple Airlines
Fri, May 1 - Fri, May 8
Spirit Airlines Logo
6:06 pm - 7:22 pm
SDF
-
SJU
25h 16m
1 stop
Spirit Airlines Logo
12:57 pm - 5:04 pm
SJU
-
SDF
28h 07m
1 stop
$277Spirit Airlines
Fri, Apr 24 - Fri, May 1

Spirit Airlines flights from Louisville to San Juan

Our best Spirit Airlines deals on Louisville to San Juan flight tickets
Spirit Airlines
May 1
SDF6:06 pmLouisville Intl
25h 16m
1 stop
SJU7:22 pmSan Juan Luis Munoz Marin Intl
May 7
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$232
Spirit Airlines
May 8
SDF10:33 amLouisville Intl
8h 26m
1 stop
SJU6:59 pmSan Juan Luis Munoz Marin Intl
May 10
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$233
Spirit Airlines
Apr 24
SDF6:06 pmLouisville Intl
25h 16m
1 stop
SJU7:22 pmSan Juan Luis Munoz Marin Intl
May 1
SJU12:57 pmSan Juan Luis Munoz Marin Intl
28h 07m
1 stop
SDF5:04 pmLouisville Intl
$258

United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
Apr 11
SDF7:20 amLouisville Intl
13h 18m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Apr 17
SJU1:00 amSan Juan Luis Munoz Marin Intl
12h 17m
2 stops
SDF1:17 pmLouisville Intl
$558
United Airlines
Apr 11
SDF10:07 amLouisville Intl
13h 43m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Apr 18
SJU1:25 pmSan Juan Luis Munoz Marin Intl
10h 34m
2 stops
SDF11:59 pmLouisville Intl
$574
United Airlines
Apr 21
SDF10:00 amLouisville Intl
11h 24m
2 stops
SJU9:24 pmSan Juan Luis Munoz Marin Intl
Apr 26
SJU1:00 amSan Juan Luis Munoz Marin Intl
21h 30m
2 stops
SDF10:30 pmLouisville Intl
$596

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 April 8, 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 5/1

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Thu 5/7

8:04 pm-9:28 am

1 stop13h 24m

$232
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/8

10:33 am-6:59 pm

1 stop8h 26m

San Juan Luis Munoz Marin Intl

Sun 5/10

8:04 pm-9:28 am

1 stop13h 24m

$233

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/1

12:57 pm-5:04 pm

1 stop28h 07m

$258

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/1

6:00 am-5:04 pm

1 stop11h 04m

$261

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

6:06 pm-12:54 am

2 stops30h 48m

San Juan Luis Munoz Marin Intl

Thu 5/7

8:04 pm-9:28 am

1 stop13h 24m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/8

8:04 pm-9:28 am

1 stop13h 24m

$267

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/1

12:57 pm-5:04 pm

1 stop28h 07m

$268

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

6:06 pm-12:29 am

2 stops30h 23m

San Juan Luis Munoz Marin Intl

Thu 5/7

8:04 pm-9:28 am

1 stop13h 24m

$271

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/8

2:30 pm-9:03 am

2 stops42h 33m

$275

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Fri 5/1

12:57 pm-5:04 pm

1 stop28h 07m

$277

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 February is your next best option. Flight prices from Louisville to San Juan during February average around $346.

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 $419 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 $355 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 35m

Direct flights

None
The fastest flight from Louisville to San Juan takes 6h 35m
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 35m 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 $176Free CancellationRating
6.3
8,604 reviews
Search Spirit Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,388 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,337 reviews
Search Southwest flights
American AirlinesPriceFrom $240Free CancellationRating
7.1
11,549 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,551 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