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Cheap flights from Louisville to San Juan from $158

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 8/8. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:15 am - 11:38 pm
SDF
-
SJU
12h 23m
1 stop
Multiple Airlines Logo
5:12 pm - 10:25 am
SJU
-
SDF
17h 13m
1 stop
$280Multiple Airlines
Mon, Sep 14 - Sun, Sep 20
Multiple Airlines Logo
11:19 am - 4:11 pm
SDF
-
SJU
28h 52m
1 stop
Multiple Airlines Logo
5:12 pm - 10:35 am
SJU
-
SDF
17h 23m
1 stop
$289Multiple Airlines
Mon, Aug 31 - Thu, Sep 10
Multiple Airlines Logo
11:19 am - 4:11 pm
SDF
-
SJU
28h 52m
1 stop
Multiple Airlines Logo
5:12 pm - 10:25 am
SJU
-
SDF
17h 13m
1 stop
$297Multiple Airlines
Mon, Aug 31 - Sun, Sep 13
Multiple Airlines Logo
9:10 pm - 4:11 pm
SDF
-
SJU
19h 01m
1 stop
Multiple Airlines Logo
6:35 am - 9:49 am
SJU
-
SDF
27h 14m
1 stop
$302Multiple Airlines
Mon, Aug 10 - Thu, Aug 20
Multiple Airlines Logo
11:19 am - 4:11 pm
SDF
-
SJU
28h 52m
1 stop
Multiple Airlines Logo
4:39 pm - 8:29 pm
SJU
-
SDF
27h 50m
1 stop
$310Multiple Airlines
Mon, Aug 31 - Wed, Sep 16
Multiple Airlines Logo
11:19 am - 12:56 am
SDF
-
SJU
13h 37m
2 stops
Multiple Airlines Logo
5:12 pm - 10:35 am
SJU
-
SDF
17h 23m
1 stop
$313Multiple Airlines
Mon, Aug 31 - Thu, Sep 10
Multiple Airlines Logo
8:46 pm - 11:59 pm
SDF
-
SJU
27h 13m
1 stop
Multiple Airlines Logo
5:12 pm - 10:35 am
SJU
-
SDF
17h 23m
1 stop
$315Multiple Airlines
Sat, Aug 29 - Thu, Sep 10
American Airlines Logo
6:11 am - 2:51 pm
SDF
-
SJU
8h 40m
2 stops
American Airlines Logo
7:03 am - 5:59 pm
SJU
-
SDF
10h 56m
2 stops
$316American Airlines
Fri, Aug 21 - Tue, Aug 25
United Airlines Logo
10:25 am - 9:00 pm
SDF
-
SJU
9h 35m
1 stop
United Airlines Logo
8:05 am - 2:46 pm
SJU
-
SDF
7h 41m
1 stop
$319United Airlines
Fri, Nov 6 - Tue, Nov 10
Multiple Airlines Logo
11:12 am - 12:34 am
SDF
-
SJU
13h 22m
1 stop
Multiple Airlines Logo
5:12 pm - 10:35 am
SJU
-
SDF
17h 23m
1 stop
$321Multiple Airlines
Thu, Aug 27 - Thu, Sep 10

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American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Aug 21
SDF6:11 amLouisville Intl
8h 40m
2 stops
SJU2:51 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU7:03 amSan Juan Luis Munoz Marin Intl
10h 56m
2 stops
SDF5:59 pmLouisville Intl
$316
American Airlines
Dec 9
SDF6:29 amLouisville Intl
7h 28m
1 stop
SJU2:57 pmSan Juan Luis Munoz Marin Intl
Dec 14
SJU2:05 pmSan Juan Luis Munoz Marin Intl
11h 17m
1 stop
SDF12:22 amLouisville Intl
$326
American Airlines
Sep 25
SDF7:27 pmLouisville Intl
13h 57m
2 stops
SJU9:24 amSan Juan Luis Munoz Marin Intl
Sep 30
SJU6:00 amSan Juan Luis Munoz Marin Intl
11h 18m
2 stops
SDF5:18 pmLouisville Intl
$336

Southwest flights from Louisville to San Juan

Our best Southwest deals on Louisville to San Juan flight tickets
Southwest
Aug 27
SDF2:15 pmLouisville Intl
8h 50m
2 stops
SJU11:05 pmSan Juan Luis Munoz Marin Intl
Aug 31
SJU6:00 amSan Juan Luis Munoz Marin Intl
7h 35m
1 stop
SDF1:35 pmLouisville Intl
$340
Southwest
Sep 10
SDF11:50 amLouisville Intl
11h 00m
1 stop
SJU10:50 pmSan Juan Luis Munoz Marin Intl
Sep 14
SJU5:00 amSan Juan Luis Munoz Marin Intl
6h 10m
1 stop
SDF11:10 amLouisville Intl
$364
Southwest
Oct 13
SDF5:50 pmLouisville Intl
5h 55m
1 stop
SJU11:45 pmSan Juan Luis Munoz Marin Intl
Oct 18
SJU5:30 amSan Juan Luis Munoz Marin Intl
10h 25m
1 stop
SDF3:55 pmLouisville Intl
$374

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 July 17, 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

Mon 9/14

11:15 am-11:38 pm

1 stop12h 23m

San Juan Luis Munoz Marin Intl

Sun 9/20

5:12 pm-10:25 am

1 stop17h 13m

$280

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/31

11:19 am-4:11 pm

1 stop28h 52m

San Juan Luis Munoz Marin Intl

Thu 9/10

5:12 pm-10:35 am

1 stop17h 23m

$289

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/31

11:19 am-4:11 pm

1 stop28h 52m

San Juan Luis Munoz Marin Intl

Sun 9/13

5:12 pm-10:25 am

1 stop17h 13m

$297

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/10

9:10 pm-4:11 pm

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Thu 8/20

6:35 am-9:49 am

1 stop27h 14m

$302

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/31

11:19 am-4:11 pm

1 stop28h 52m

San Juan Luis Munoz Marin Intl

Wed 9/16

4:39 pm-8:29 pm

1 stop27h 50m

$310

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 8/31

11:19 am-12:56 am

2 stops13h 37m

San Juan Luis Munoz Marin Intl

Thu 9/10

5:12 pm-10:35 am

1 stop17h 23m

$313

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 8/29

8:46 pm-11:59 pm

1 stop27h 13m

San Juan Luis Munoz Marin Intl

Thu 9/10

5:12 pm-10:35 am

1 stop17h 23m

$315

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/21

6:11 am-2:51 pm

2 stops8h 40m

San Juan Luis Munoz Marin Intl

Tue 8/25

7:03 am-5:59 pm

2 stops10h 56m

$316
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 11/6

10:25 am-9:00 pm

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Tue 11/10

8:05 am-2:46 pm

1 stop7h 41m

$319

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 8/27

11:12 am-12:34 am

1 stop13h 22m

San Juan Luis Munoz Marin Intl

Thu 9/10

5:12 pm-10:35 am

1 stop17h 23m

$321

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 January, then February is your next best option. Flight prices from Louisville to San Juan during February average around $128.

How far in advance should I book a flight from Louisville 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 $438 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 $359 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 25m

Direct flights

None
The fastest flight from Louisville to San Juan takes 6h 25m
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 25m 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
DeltaPriceFrom $205Free CancellationRating
7.8
8,474 reviews
Search Delta flights
SouthwestPriceFrom $230Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,818 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
9,997 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