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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 10/26. 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
10:10 am - 5:12 pmSDF-SJU
6h 02m1 stop
Delta Logo
6:15 am - 1:50 pmSJU-SDF
8h 35m1 stop
$225Delta
Find Deal
Tue, Feb 24 - Thu, Mar 5
American Airlines Logo
8:18 am - 10:10 pmSDF-SJU
13h 52m1 stop
American Airlines Logo
4:56 pm - 11:43 pmSJU-SDF
7h 47m1 stop
$226American Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Delta Logo
2:59 pm - 11:49 pmSDF-SJU
7h 50m1 stop
Delta Logo
6:15 am - 1:50 pmSJU-SDF
8h 35m1 stop
$265Delta
Find Deal
Mon, Feb 23 - Wed, Mar 4
American Airlines Logo
11:08 am - 11:30 pmSDF-SJU
11h 22m1 stop
American Airlines Logo
10:26 am - 12:29 amSJU-SDF
15h 03m1 stop
$280American Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
American Airlines Logo
1:00 pm - 11:40 pmSDF-SJU
9h 40m1 stop
American Airlines Logo
6:30 am - 9:02 pmSJU-SDF
15h 32m1 stop
$285American Airlines
Find Deal
Thu, Jan 29 - Sat, Feb 7
United Airlines Logo
11:10 am - 9:00 pmSDF-SJU
8h 50m1 stop
United Airlines Logo
8:10 am - 2:48 pmSJU-SDF
7h 38m1 stop
$310United Airlines
Find Deal
Wed, Jan 21 - Thu, Jan 22
United Airlines Logo
8:29 am - 10:22 pmSDF-SJU
12h 53m2 stops
United Airlines Logo
8:10 am - 8:28 pmSJU-SDF
13h 18m2 stops
$315United Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Spirit Airlines Logo
8:23 am - 2:11 pmSDF-SJU
29h 48m3 stops
Spirit Airlines Logo
11:59 am - 10:04 pmSJU-SDF
10h 05m1 stop
$328Spirit Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
Spirit Airlines Logo
8:23 am - 2:11 pmSDF-SJU
29h 48m2 stops
Spirit Airlines Logo
11:59 am - 10:04 pmSJU-SDF
10h 05m1 stop
$339Spirit Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
Southwest Logo
5:35 am - 7:05 pmSDF-SJU
12h 30m2 stops
Southwest Logo
6:10 am - 4:50 pmSJU-SDF
11h 40m2 stops
$402Southwest
Find Deal
Tue, Feb 24 - Wed, Mar 4

Delta flights from Louisville to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Louisville to San Juan Luis Munoz Marin Intl Airport flight tickets
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
$225
Find similar
Delta
Feb 23
SDF2:59 pmLouisville Intl
7h 50m
1 stop
SJU11:49 pmSan Juan Luis Munoz Marin Intl
Mar 4
SJU6:15 amSan Juan Luis Munoz Marin Intl
8h 35m
1 stop
SDF1:50 pmLouisville Intl
$265
Find similar
Delta
Sep 30
SDF12:48 pmLouisville Intl
9h 12m
1 stop
SJU10:00 pmSan Juan Luis Munoz Marin Intl
Oct 2
SJU2:26 pmSan Juan Luis Munoz Marin Intl
9h 26m
1 stop
SDF11:52 pmLouisville Intl
$305
Find similar

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

Our best United Airlines deals on Louisville to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Jan 21
SDF11:10 amLouisville Intl
8h 50m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Jan 22
SJU8:10 amSan Juan Luis Munoz Marin Intl
7h 38m
1 stop
SDF2:48 pmLouisville Intl
$310
Find similar
United Airlines
Jan 19
SDF8:29 amLouisville Intl
12h 53m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 23
SJU8:10 amSan Juan Luis Munoz Marin Intl
13h 18m
2 stops
SDF8:28 pmLouisville Intl
$315
Find similar
United Airlines
Sep 30
SDF8:45 amLouisville Intl
15h 12m
2 stops
SJU11:57 pmSan Juan Luis Munoz Marin Intl
Oct 1
SJU1:05 amSan Juan Luis Munoz Marin Intl
10h 28m
1 stop
SDF11:33 amLouisville Intl
$351
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 September 16, 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

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

$225

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 10/30

8:18 am-10:10 pm

1 stop13h 52m

San Juan Luis Munoz Marin Intl

Thu 11/6

4:56 pm-11:43 pm

1 stop7h 47m

$226

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 2/23

2:59 pm-11:49 pm

1 stop7h 50m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:15 am-1:50 pm

1 stop8h 35m

$265

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 3/3

11:08 am-11:30 pm

1 stop11h 22m

San Juan Luis Munoz Marin Intl

Wed 3/4

10:26 am-12:29 am

1 stop15h 03m

$280

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 1/29

1:00 pm-11:40 pm

1 stop9h 40m

San Juan Luis Munoz Marin Intl

Sat 2/7

6:30 am-9:02 pm

1 stop15h 32m

$285

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 1/21

11:10 am-9:00 pm

1 stop8h 50m

San Juan Luis Munoz Marin Intl

Thu 1/22

8:10 am-2:48 pm

1 stop7h 38m

$310

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 1/19

8:29 am-10:22 pm

2 stops12h 53m

San Juan Luis Munoz Marin Intl

Fri 1/23

8:10 am-8:28 pm

2 stops13h 18m

$315

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/29

8:23 am-2:11 pm

3 stops29h 48m

San Juan Luis Munoz Marin Intl

Thu 10/2

11:59 am-10:04 pm

1 stop10h 05m

$328

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/29

8:23 am-2:11 pm

2 stops29h 48m

San Juan Luis Munoz Marin Intl

Thu 10/2

11:59 am-10:04 pm

1 stop10h 05m

$339

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Tue 2/24

5:35 am-7:05 pm

2 stops12h 30m

San Juan Luis Munoz Marin Intl

Wed 3/4

6:10 am-4:50 pm

2 stops11h 40m

$402

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 September is also cheap. Prices for this month can be found on momondo for an average of $368.

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 $436 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 $302 on momondo.

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

You could potentially save up to 3% 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 September 2025, prices for Louisville to San Juan Luis Munoz Marin Intl Airport flights are approximately 146% 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

Direct flights

None
There are no direct flights from Louisville to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Louisville to 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 00m.

  • 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
8,015 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $225Free CancellationRating
7.9
7,954 reviews
Search Delta flights
American AirlinesPriceFrom $263Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
8,929 reviews
Search United 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.

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