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Cheap flights from Louisville to San Juan from $110

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 5/2. 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.
American Airlines Logo
7:52 pm - 10:48 am
SDF
-
SJU
14h 56m
1 stop
American Airlines Logo
7:25 am - 9:28 pm
SJU
-
SDF
14h 03m
1 stop
$268American Airlines
Sat, May 2 - Sat, May 9
United Airlines Logo
9:10 am - 8:38 pm
SDF
-
SJU
11h 28m
2 stops
United Airlines Logo
3:56 pm - 11:56 pm
SJU
-
SDF
8h 00m
1 stop
$278United Airlines
Sat, May 2 - Thu, May 7
Multiple Airlines Logo
7:48 pm - 2:33 pm
SDF
-
SJU
18h 45m
2 stops
Multiple Airlines Logo
6:00 am - 6:58 pm
SJU
-
SDF
12h 58m
1 stop
$284Multiple Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
6:01 am - 9:24 pm
SDF
-
SJU
15h 23m
1 stop
American Airlines Logo
7:25 am - 10:08 pm
SJU
-
SDF
14h 43m
1 stop
$308American Airlines
Thu, Apr 9 - Thu, Apr 16
American Airlines Logo
7:31 am - 10:05 pm
SDF
-
SJU
14h 34m
1 stop
American Airlines Logo
6:00 am - 10:31 pm
SJU
-
SDF
16h 31m
1 stop
$313American Airlines
Wed, May 13 - Sat, May 16
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
$314Spirit Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
7:33 am - 6:10 pm
SDF
-
SJU
10h 37m
2 stops
American Airlines Logo
11:59 pm - 10:11 am
SJU
-
SDF
10h 12m
1 stop
$316American Airlines
Sun, Apr 26 - Sat, May 2
Multiple Airlines Logo
7:48 pm - 7:22 pm
SDF
-
SJU
23h 34m
1 stop
Multiple Airlines Logo
12:57 pm - 6:58 pm
SJU
-
SDF
30h 01m
1 stop
$328Multiple 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
12:57 pm - 5:04 pm
SJU
-
SDF
28h 07m
1 stop
$329Spirit Airlines
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
7:48 pm - 7:22 pm
SDF
-
SJU
23h 34m
1 stop
Multiple Airlines Logo
5:15 pm - 8:36 am
SJU
-
SDF
15h 21m
2 stops
$332Multiple Airlines
Fri, May 1 - Tue, May 5

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
May 2
SDF7:52 pmLouisville Intl
14h 56m
1 stop
SJU10:48 amSan Juan Luis Munoz Marin Intl
May 9
SJU7:25 amSan Juan Luis Munoz Marin Intl
14h 03m
1 stop
SDF9:28 pmLouisville Intl
$268
American Airlines
Apr 9
SDF9:43 amLouisville Intl
11h 08m
1 stop
SJU8:51 pmSan Juan Luis Munoz Marin Intl
Apr 16
SJU1:31 pmSan Juan Luis Munoz Marin Intl
8h 37m
2 stops
SDF10:08 pmLouisville Intl
$308
American Airlines
May 13
SDF7:31 amLouisville Intl
14h 34m
1 stop
SJU10:05 pmSan Juan Luis Munoz Marin Intl
May 16
SJU6:00 amSan Juan Luis Munoz Marin Intl
16h 31m
1 stop
SDF10:31 pmLouisville Intl
$313

Southwest flights from Louisville to San Juan

Our best Southwest deals on Louisville to San Juan flight tickets
Southwest
May 12
SDF3:45 pmLouisville Intl
6h 55m
1 stop
SJU10:40 pmSan Juan Luis Munoz Marin Intl
May 26
SJU5:35 amSan Juan Luis Munoz Marin Intl
9h 30m
2 stops
SDF3:05 pmLouisville Intl
$378
Southwest
Jun 9
SDF12:40 pmLouisville Intl
11h 05m
1 stop
SJU11:45 pmSan Juan Luis Munoz Marin Intl
Jun 13
SJU5:00 amSan Juan Luis Munoz Marin Intl
7h 10m
1 stop
SDF12:10 pmLouisville Intl
$391
Southwest
Jul 4
SDF11:00 amLouisville Intl
6h 25m
1 stop
SJU5:25 pmSan Juan Luis Munoz Marin Intl
Jul 11
SJU7:00 amSan Juan Luis Munoz Marin Intl
8h 25m
1 stop
SDF3:25 pmLouisville Intl
$431

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 March 26, 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

Sat 5/2

7:52 pm-10:48 am

1 stop14h 56m

San Juan Luis Munoz Marin Intl

Sat 5/9

7:25 am-9:28 pm

1 stop14h 03m

$268
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 5/2

9:10 am-8:38 pm

2 stops11h 28m

San Juan Luis Munoz Marin Intl

Thu 5/7

3:56 pm-11:56 pm

1 stop8h 00m

$278

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 4/24

7:48 pm-2:33 pm

2 stops18h 45m

San Juan Luis Munoz Marin Intl

Fri 5/1

6:00 am-6:58 pm

1 stop12h 58m

$284

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/9

6:01 am-9:24 pm

1 stop15h 23m

San Juan Luis Munoz Marin Intl

Thu 4/16

7:25 am-10:08 pm

1 stop14h 43m

$308

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Wed 5/13

7:31 am-10:05 pm

1 stop14h 34m

San Juan Luis Munoz Marin Intl

Sat 5/16

6:00 am-10:31 pm

1 stop16h 31m

$313

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

$314

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 4/26

7:33 am-6:10 pm

2 stops10h 37m

San Juan Luis Munoz Marin Intl

Sat 5/2

11:59 pm-10:11 am

1 stop10h 12m

$316

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

7:48 pm-7:22 pm

1 stop23h 34m

San Juan Luis Munoz Marin Intl

Thu 5/7

12:57 pm-6:58 pm

1 stop30h 01m

$328

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 4/30

6:06 pm-7:22 pm

1 stop25h 16m

San Juan Luis Munoz Marin Intl

Sun 5/3

12:57 pm-5:04 pm

1 stop28h 07m

$329

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 5/1

7:48 pm-7:22 pm

1 stop23h 34m

San Juan Luis Munoz Marin Intl

Tue 5/5

5:15 pm-8:36 am

2 stops15h 21m

$332

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 September is your next best option. Flight prices from Louisville to San Juan during September average around $345.

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 $418 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 $365 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 44m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 44m
There are no direct flights from Louisville to San Juan. There are no popular flight routes from Louisville to San Juan.
Search flight deals

  • 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 44m 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
7.9
8,339 reviews
Search Delta flights
Spirit AirlinesPriceFrom $209Free CancellationRating
6.3
8,546 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,333 reviews
Search Southwest flights
American AirlinesPriceFrom $240Free CancellationRating
7.1
11,499 reviews
Search American Airlines flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,489 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