Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Louisville to San Juan from $127

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 5/16. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
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
$251Spirit Airlines
Mon, May 18 - Fri, May 22
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
$255Spirit Airlines
Mon, May 18 - Fri, May 22
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
$265Spirit Airlines
Sun, May 10 - Sat, May 16
Multiple Airlines Logo
6:06 pm - 8:49 am
SDF
-
SJU
38h 43m
2 stops
Multiple Airlines Logo
11:00 am - 6:58 pm
SJU
-
SDF
7h 58m
1 stop
$279Multiple Airlines
Thu, Apr 30 - Fri, May 15
Multiple Airlines Logo
6:06 pm - 12:23 pm
SDF
-
SJU
18h 17m
1 stop
Multiple Airlines Logo
11:00 am - 6:58 pm
SJU
-
SDF
7h 58m
1 stop
$280Multiple Airlines
Thu, Apr 30 - Fri, May 15
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
$289Spirit Airlines
Thu, May 28 - Sun, May 31
Multiple Airlines Logo
10:33 am - 6:59 pm
SDF
-
SJU
8h 26m
1 stop
Multiple Airlines Logo
5:15 pm - 8:36 am
SJU
-
SDF
15h 21m
2 stops
$291Multiple Airlines
Mon, May 18 - Fri, May 22
Multiple Airlines Logo
7:48 pm - 6:59 pm
SDF
-
SJU
23h 11m
1 stop
Multiple Airlines Logo
8:04 pm - 9:28 am
SJU
-
SDF
13h 24m
1 stop
$293Multiple Airlines
Fri, May 15 - Fri, May 22
Multiple Airlines Logo
10:33 am - 6:59 pm
SDF
-
SJU
8h 26m
1 stop
Multiple Airlines Logo
3:03 am - 8:36 am
SJU
-
SDF
29h 33m
2 stops
$295Multiple Airlines
Fri, May 8 - Mon, May 11
Multiple Airlines Logo
10:33 am - 6:59 pm
SDF
-
SJU
8h 26m
1 stop
Multiple Airlines Logo
8:32 am - 8:51 am
SJU
-
SDF
24h 19m
2 stops
$296Multiple Airlines
Sat, May 16 - Sat, May 23

United Airlines flights from Louisville to San Juan

Our best United Airlines deals on Louisville to San Juan flight tickets
United Airlines
May 26
SDF6:00 amLouisville Intl
6h 34m
1 stop
SJU12:34 pmSan Juan Luis Munoz Marin Intl
May 28
SJU3:56 pmSan Juan Luis Munoz Marin Intl
7h 53m
1 stop
SDF11:49 pmLouisville Intl
$388
United Airlines
Apr 30
SDF10:14 amLouisville Intl
10h 20m
1 stop
SJU8:34 pmSan Juan Luis Munoz Marin Intl
May 5
SJU7:20 amSan Juan Luis Munoz Marin Intl
12h 57m
2 stops
SDF8:17 pmLouisville Intl
$446
United Airlines
Apr 30
SDF10:14 amLouisville Intl
10h 20m
1 stop
SJU8:34 pmSan Juan Luis Munoz Marin Intl
May 2
SJU7:20 amSan Juan Luis Munoz Marin Intl
11h 16m
2 stops
SDF6:36 pmLouisville Intl
$486

Spirit Airlines flights from Louisville to San Juan

Our best Spirit Airlines deals on Louisville to San Juan flight tickets
Spirit Airlines
May 18
SDF10:33 amLouisville Intl
8h 26m
1 stop
SJU6:59 pmSan Juan Luis Munoz Marin Intl
May 22
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$251
Spirit Airlines
May 18
SDF10:33 amLouisville Intl
8h 26m
1 stop
SJU6:59 pmSan Juan Luis Munoz Marin Intl
May 22
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$255
Spirit Airlines
May 10
SDF10:33 amLouisville Intl
8h 26m
1 stop
SJU6:59 pmSan Juan Luis Munoz Marin Intl
May 16
SJU8:04 pmSan Juan Luis Munoz Marin Intl
13h 24m
1 stop
SDF9:28 amLouisville Intl
$265

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 16, 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
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 5/18

10:33 am-6:59 pm

1 stop8h 26m

San Juan Luis Munoz Marin Intl

Fri 5/22

8:04 pm-9:28 am

1 stop13h 24m

$251

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 5/18

10:33 am-6:59 pm

1 stop8h 26m

San Juan Luis Munoz Marin Intl

Fri 5/22

8:04 pm-9:28 am

1 stop13h 24m

$255

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 5/10

10:33 am-6:59 pm

1 stop8h 26m

San Juan Luis Munoz Marin Intl

Sat 5/16

8:04 pm-9:28 am

1 stop13h 24m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/30

6:06 pm-8:49 am

2 stops38h 43m

San Juan Luis Munoz Marin Intl

Fri 5/15

11:00 am-6:58 pm

1 stop7h 58m

$279

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/30

6:06 pm-12:23 pm

1 stop18h 17m

San Juan Luis Munoz Marin Intl

Fri 5/15

11:00 am-6:58 pm

1 stop7h 58m

$280

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 5/28

10:33 am-6:59 pm

1 stop8h 26m

San Juan Luis Munoz Marin Intl

Sun 5/31

8:04 pm-9:28 am

1 stop13h 24m

$289

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 5/18

10:33 am-6:59 pm

1 stop8h 26m

San Juan Luis Munoz Marin Intl

Fri 5/22

5:15 pm-8:36 am

2 stops15h 21m

$291

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/15

7:48 pm-6:59 pm

1 stop23h 11m

San Juan Luis Munoz Marin Intl

Fri 5/22

8:04 pm-9:28 am

1 stop13h 24m

$293

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

Mon 5/11

3:03 am-8:36 am

2 stops29h 33m

$295

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 5/16

10:33 am-6:59 pm

1 stop8h 26m

San Juan Luis Munoz Marin Intl

Sat 5/23

8:32 am-8:51 am

2 stops24h 19m

$296

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $420 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

5h 45m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 45m
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 5h 45m 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
8,616 reviews
Search Spirit Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,409 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,328 reviews
Search Southwest flights
American AirlinesPriceFrom $240Free CancellationRating
7.1
11,584 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,594 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.

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 5/16
Sat 5/23
By creating a price alert you accept our terms of use and privacy policy.

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