Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Louisville to San Juan from $103

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 8/22. 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

American Airlines Logo
3:35 pm - 11:59 pmSDF-SJU
8h 24m1 stop
American Airlines Logo
7:05 am - 5:54 pmSJU-SDF
10h 49m2 stops
$205American Airlines
Find Deal
Mon, Oct 13 - Tue, Oct 28
Delta Logo
6:00 am - 4:36 pmSDF-SJU
10h 36m1 stop
Delta Logo
5:41 pm - 11:52 pmSJU-SDF
6h 11m1 stop
$215Delta
Find Deal
Sun, Sep 7 - Thu, Sep 11
Spirit Airlines Logo
8:30 am - 11:04 amSDF-SJU
26h 34m1 stop
Spirit Airlines Logo
11:59 am - 10:28 pmSJU-SDF
10h 29m1 stop
$226Spirit Airlines
Find Deal
Sat, Sep 6 - Fri, Sep 12
American Airlines Logo
10:00 am - 11:37 pmSDF-SJU
13h 37m2 stops
American Airlines Logo
3:50 pm - 11:59 pmSJU-SDF
8h 09m1 stop
$235American Airlines
Find Deal
Sun, Sep 7 - Thu, Sep 11
Spirit Airlines Logo
10:14 am - 12:44 amSDF-SJU
14h 30m1 stop
Spirit Airlines Logo
1:59 am - 9:19 amSJU-SDF
7h 20m1 stop
$243Spirit Airlines
Find Deal
Sat, Sep 20 - Mon, Sep 22
Southwest Logo
4:20 pm - 11:30 pmSDF-SJU
7h 10m1 stop
Southwest Logo
5:45 am - 12:25 pmSJU-SDF
6h 40m1 stop
$245Southwest
Find Deal
Fri, Sep 19 - Sun, Sep 21
Spirit Airlines Logo
8:30 am - 3:01 pmSDF-SJU
30h 31m2 stops
Spirit Airlines Logo
11:59 am - 10:28 pmSJU-SDF
10h 29m1 stop
$250Spirit Airlines
Find Deal
Sat, Sep 6 - Fri, Sep 12
Spirit Airlines Logo
8:30 am - 11:04 amSDF-SJU
26h 34m1 stop
Spirit Airlines Logo
1:59 am - 10:28 pmSJU-SDF
20h 29m2 stops
$253Spirit Airlines
Find Deal
Sun, Sep 14 - Wed, Sep 17
American Airlines Logo
6:50 am - 11:47 pmSDF-SJU
15h 57m1 stop
American Airlines Logo
3:53 pm - 10:59 pmSJU-SDF
8h 06m1 stop
$255American Airlines
Find Deal
Sun, Nov 23 - Wed, Nov 26
United Airlines Logo
7:20 am - 2:44 pmSDF-SJU
7h 24m1 stop
United Airlines Logo
1:05 am - 1:17 pmSJU-SDF
12h 12m2 stops
$288United Airlines
Find Deal
Sun, Sep 7 - Fri, Sep 12

Spirit Airlines flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Our best Spirit Airlines deals on Louisville to San Juan Luis Munoz Marin Intl Airport flight tickets
Spirit Airlines
Sep 6
SDF8:30 amLouisville Intl
26h 34m
1 stop
SJU11:04 amSan Juan Luis Munoz Marin Intl
Sep 12
SJU11:59 amSan Juan Luis Munoz Marin Intl
10h 29m
1 stop
SDF10:28 pmLouisville Intl
$226
Find similar
Spirit Airlines
Sep 20
SDF10:14 amLouisville Intl
14h 30m
1 stop
SJU12:44 amSan Juan Luis Munoz Marin Intl
Sep 22
SJU1:59 amSan Juan Luis Munoz Marin Intl
7h 20m
1 stop
SDF9:19 amLouisville Intl
$243
Find similar
Spirit Airlines
Sep 6
SDF8:30 amLouisville Intl
30h 31m
2 stops
SJU3:01 pmSan Juan Luis Munoz Marin Intl
Sep 12
SJU11:59 amSan Juan Luis Munoz Marin Intl
10h 29m
1 stop
SDF10:28 pmLouisville Intl
$250
Find similar

American Airlines flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Louisville to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Oct 13
SDF3:35 pmLouisville Intl
8h 24m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Oct 28
SJU7:05 amSan Juan Luis Munoz Marin Intl
10h 49m
2 stops
SDF5:54 pmLouisville Intl
$205
Find similar
American Airlines
Sep 7
SDF10:00 amLouisville Intl
13h 37m
2 stops
SJU11:37 pmSan Juan Luis Munoz Marin Intl
Sep 11
SJU3:50 pmSan Juan Luis Munoz Marin Intl
8h 09m
1 stop
SDF11:59 pmLouisville Intl
$235
Find similar
American Airlines
Nov 23
SDF6:50 amLouisville Intl
15h 57m
1 stop
SJU11:47 pmSan Juan Luis Munoz Marin Intl
Nov 26
SJU3:53 pmSan Juan Luis Munoz Marin Intl
8h 06m
1 stop
SDF10:59 pmLouisville Intl
$255
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to San Juan Luis Munoz Marin Intl Airport 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 July 31, 2025.
Use the filters below to find and compare flights from Louisville to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 10/13

3:35 pm-11:59 pm

1 stop8h 24m

San Juan Luis Munoz Marin Intl

Tue 10/28

7:05 am-5:54 pm

2 stops10h 49m

$205

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 9/7

6:00 am-4:36 pm

1 stop10h 36m

San Juan Luis Munoz Marin Intl

Thu 9/11

5:41 pm-11:52 pm

1 stop6h 11m

$215

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/6

8:30 am-11:04 am

1 stop26h 34m

San Juan Luis Munoz Marin Intl

Fri 9/12

11:59 am-10:28 pm

1 stop10h 29m

$226

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 9/7

10:00 am-11:37 pm

2 stops13h 37m

San Juan Luis Munoz Marin Intl

Thu 9/11

3:50 pm-11:59 pm

1 stop8h 09m

$235

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/20

10:14 am-12:44 am

1 stop14h 30m

San Juan Luis Munoz Marin Intl

Mon 9/22

1:59 am-9:19 am

1 stop7h 20m

$243

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 9/19

4:20 pm-11:30 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Sun 9/21

5:45 am-12:25 pm

1 stop6h 40m

$245

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/6

8:30 am-3:01 pm

2 stops30h 31m

San Juan Luis Munoz Marin Intl

Fri 9/12

11:59 am-10:28 pm

1 stop10h 29m

$250

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 9/14

8:30 am-11:04 am

1 stop26h 34m

San Juan Luis Munoz Marin Intl

Wed 9/17

1:59 am-10:28 pm

2 stops20h 29m

$253

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 11/23

6:50 am-11:47 pm

1 stop15h 57m

San Juan Luis Munoz Marin Intl

Wed 11/26

3:53 pm-10:59 pm

1 stop8h 06m

$255

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 9/7

7:20 am-2:44 pm

1 stop7h 24m

San Juan Luis Munoz Marin Intl

Fri 9/12

1:05 am-1:17 pm

2 stops12h 12m

$288

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 Luis Munoz Marin Intl Airport

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 Luis Munoz Marin Intl Airport?

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $374.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Louisville is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $372. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Louisville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $459.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as $339. Flights in the afternoon are often more expensive with an average ticket price of $441.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $442 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Louisville for as low as $379 on momondo.

Can stopping save me money on Louisville to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 36% on your flight if you consider stops on a Louisville to San Juan Luis Munoz Marin Intl Airport flight.

How have Louisville to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of July 2025, prices for Louisville to San Juan Luis Munoz Marin Intl Airport flights are approximately 9% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to San Juan Luis Munoz Marin Intl Airport (SDF to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to San Juan Luis Munoz Marin Intl Airport

Best Price Found

$103

Fastest flight time

6h 02m

Direct flights

None
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Louisville in the past 72 hours is $103. The best round-trip flight deal from Louisville to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $205.
The fastest flight from Louisville to San Juan Luis Munoz Marin Intl Airport takes 6h 02m
There are no direct flights from Louisville to San Juan Luis Munoz Marin Intl Airport. Popular non-direct route for this connection is Louisville Intl Airport - San Juan Luis Munoz Marin Intl Airport.
Search flight deals

  • How far is Louisville Intl to San Juan Luis Munoz Marin Intl by plane?

    San Juan Luis Munoz Marin Intl is 1811.4 mi away from Louisville Intl. A reasonable flight in good conditions will take 6h 02m.

  • When did momondo last update prices for flights from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How many operators does momondo search for flights from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Louisville to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Louisville to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $152Free CancellationRating
6.3
8,049 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
DeltaPriceFrom $225Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to San Juan?

Finding the right flight to San Juan from Louisville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Louisville to San Juan with flexible booking policies on momondo?

All flight searches from Louisville to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to San Juan right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Louisville to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your San Juan Luis Munoz Marin Intl Airport 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
Tue 8/5
Tue 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Juan