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Cheap flights from Louisville to San Juan from $168

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 9/9. 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
9:09 pm - 11:58 pm
SDF
-
SJU
26h 49m
1 stop
Multiple Airlines Logo
7:00 am - 10:35 am
SJU
-
SDF
27h 35m
1 stop
$230Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
9:09 pm - 11:58 pm
SDF
-
SJU
26h 49m
1 stop
Multiple Airlines Logo
7:00 am - 8:29 pm
SJU
-
SDF
13h 29m
2 stops
$258Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
American Airlines Logo
7:35 pm - 2:45 pm
SDF
-
SJU
19h 10m
1 stop
American Airlines Logo
4:06 pm - 12:04 am
SJU
-
SDF
7h 58m
1 stop
$336American Airlines
Thu, Oct 1 - Sun, Oct 4
American Airlines Logo
6:29 am - 3:18 pm
SDF
-
SJU
7h 49m
1 stop
American Airlines Logo
4:27 pm - 9:32 am
SJU
-
SDF
18h 05m
1 stop
$336American Airlines
Sun, Jan 10 - Tue, Jan 19
Southwest Logo
6:00 pm - 11:55 pm
SDF
-
SJU
5h 55m
1 stop
Southwest Logo
11:50 am - 8:40 pm
SJU
-
SDF
8h 50m
2 stops
$336Southwest
Mon, Sep 28 - Wed, Sep 30
Southwest Logo
4:10 pm - 11:05 pm
SDF
-
SJU
6h 55m
1 stop
Southwest Logo
5:30 am - 3:30 pm
SJU
-
SDF
10h 00m
1 stop
$336Southwest
Thu, Aug 27 - Thu, Sep 3
Delta Logo
3:43 pm - 10:19 pm
SDF
-
SJU
6h 36m
1 stop
Delta Logo
5:59 pm - 11:59 pm
SJU
-
SDF
6h 00m
1 stop
$336Delta
Sat, Sep 19 - Thu, Sep 24
Delta Logo
1:59 pm - 11:18 pm
SDF
-
SJU
8h 19m
1 stop
Delta Logo
3:10 pm - 9:13 pm
SJU
-
SDF
7h 03m
1 stop
$336Delta
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
9:00 am - 8:38 pm
SDF
-
SJU
11h 38m
2 stops
United Airlines Logo
7:00 am - 8:36 pm
SJU
-
SDF
13h 36m
2 stops
$336United Airlines
Sat, Aug 29 - Sat, Sep 5
United Airlines Logo
9:45 am - 8:38 pm
SDF
-
SJU
10h 53m
1 stop
United Airlines Logo
3:56 pm - 11:59 pm
SJU
-
SDF
8h 03m
1 stop
$336United Airlines
Fri, Aug 28 - Mon, Sep 28

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Delta flights from Louisville to San Juan

Our best Delta deals on Louisville to San Juan flight tickets
Delta
Sep 25
SDF3:43 pmLouisville Intl
6h 36m
1 stop
SJU10:19 pmSan Juan Luis Munoz Marin Intl
Sep 30
SJU5:59 pmSan Juan Luis Munoz Marin Intl
6h 00m
1 stop
SDF11:59 pmLouisville Intl
$336
Delta
Sep 25
SDF1:15 pmLouisville Intl
9h 04m
1 stop
SJU10:19 pmSan Juan Luis Munoz Marin Intl
Sep 29
SJU5:59 pmSan Juan Luis Munoz Marin Intl
6h 00m
1 stop
SDF11:59 pmLouisville Intl
$398

American Airlines flights from Louisville to San Juan

Our best American Airlines deals on Louisville to San Juan flight tickets
American Airlines
Nov 18
SDF6:05 amLouisville Intl
7h 58m
1 stop
SJU3:03 pmSan Juan Luis Munoz Marin Intl
Nov 25
SJU8:30 amSan Juan Luis Munoz Marin Intl
14h 37m
1 stop
SDF10:07 pmLouisville Intl
$341
American Airlines
Nov 18
SDF11:08 amLouisville Intl
10h 24m
2 stops
SJU10:32 pmSan Juan Luis Munoz Marin Intl
Nov 25
SJU8:30 amSan Juan Luis Munoz Marin Intl
14h 37m
1 stop
SDF10:07 pmLouisville Intl
$349
American Airlines
Aug 28
SDF6:00 amLouisville Intl
8h 38m
1 stop
SJU2:38 pmSan Juan Luis Munoz Marin Intl
Aug 28
SJU5:10 pmSan Juan Luis Munoz Marin Intl
6h 41m
1 stop
SDF11:51 pmLouisville Intl
$385

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 August 4, 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

Thu 9/10

9:09 pm-11:58 pm

1 stop26h 49m

San Juan Luis Munoz Marin Intl

Thu 9/17

7:00 am-10:35 am

1 stop27h 35m

$230

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 9/10

9:09 pm-11:58 pm

1 stop26h 49m

San Juan Luis Munoz Marin Intl

Thu 9/17

7:00 am-8:29 pm

2 stops13h 29m

$258

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 10/1

7:35 pm-2:45 pm

1 stop19h 10m

San Juan Luis Munoz Marin Intl

Sun 10/4

4:06 pm-12:04 am

1 stop7h 58m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sun 1/10

6:29 am-3:18 pm

1 stop7h 49m

San Juan Luis Munoz Marin Intl

Tue 1/19

4:27 pm-9:32 am

1 stop18h 05m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Mon 9/28

6:00 pm-11:55 pm

1 stop5h 55m

San Juan Luis Munoz Marin Intl

Wed 9/30

11:50 am-8:40 pm

2 stops8h 50m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 8/27

4:10 pm-11:05 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Thu 9/3

5:30 am-3:30 pm

1 stop10h 00m

$336
Quickest round-trip

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 9/19

3:43 pm-10:19 pm

1 stop6h 36m

San Juan Luis Munoz Marin Intl

Thu 9/24

5:59 pm-11:59 pm

1 stop6h 00m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Thu 11/5

1:59 pm-11:18 pm

1 stop8h 19m

San Juan Luis Munoz Marin Intl

Mon 11/9

3:10 pm-9:13 pm

1 stop7h 03m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Sat 8/29

9:00 am-8:38 pm

2 stops11h 38m

San Juan Luis Munoz Marin Intl

Sat 9/5

7:00 am-8:36 pm

2 stops13h 36m

$336

LouisvilleSan Juan

SDF - SJU

SDFSJU

Louisville Intl

Fri 8/28

9:45 am-8:38 pm

1 stop10h 53m

San Juan Luis Munoz Marin Intl

Mon 9/28

3:56 pm-11:59 pm

1 stop8h 03m

$336

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?

Prices are currently low for flights on this route.

Typical prices usually range from $336 to $511.
The lowest price recently found on this route was $230.

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 $367.

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 $437 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

5h 50m

Direct flights

None
The fastest flight from Louisville to San Juan takes 5h 50m
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 50m 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
8,483 reviews
Search Delta flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,845 reviews
Search American Airlines flights
United AirlinesPriceFrom $259Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
SouthwestPriceFrom $265Free CancellationRating
8.0
4,222 reviews
Search Southwest 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