$168+ Cheap flights from Louisville (SDF) to Puerto Rico
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJU
Aug 17 — Aug 241
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to Puerto Rico with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Louisville to Puerto Rico
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Cheapest flights from Louisville to Puerto RicoExplore the most affordable flight options available from Louisville to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
Explore the most affordable flight options available from Louisville to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:09 pm
SDF
- SJU
1 stop26h 48m
Multiple Airlines
Thu 9/175:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:35 am
SDF
- SJU
1 stop31h 11m
Multiple Airlines
Thu 9/175:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:19 am
SDF
- SJU
1 stop28h 52m
Multiple Airlines
Thu 9/105:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:09 pm
SDF
- SJU
1 stop26h 48m
Multiple Airlines
Sun 9/135:12 pm
SJU
- SDF
1 stop17h 13m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:09 pm
SDF
- SJU
1 stop26h 48m
Multiple Airlines
Wed 9/164:39 pm
SJU
- SDF
1 stop27h 50m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:35 am
SDF
- SJU
1 stop31h 11m
Multiple Airlines
Sun 9/135:12 pm
SJU
- SDF
1 stop17h 13m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:19 am
SDF
- SJU
1 stop28h 52m
Multiple Airlines
Sun 9/135:12 pm
SJU
- SDF
1 stop17h 13m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:35 am
SDF
- SJU
1 stop31h 11m
Multiple Airlines
Wed 9/164:39 pm
SJU
- SDF
1 stop27h 50m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:19 am
SDF
- SJU
1 stop28h 52m
Multiple Airlines
Wed 9/164:39 pm
SJU
- SDF
1 stop27h 50m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:46 pm
SDF
- SJU
1 stop27h 13m
Multiple Airlines
Thu 9/105:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:46 pm
SDF
- SJU
1 stop27h 13m
Multiple Airlines
Thu 9/105:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:00 am
SDF
- CPX
2 stops32h 21m
United Airlines
Sat 9/510:48 am
CPX
- SDF
2 stops12h 11m
United Airlines
Deal found 7/13![United Airlines logo]()
$1,692
Best flights from Louisville to Puerto RicoDiscover carefully curated flight deals from Louisville to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
Discover carefully curated flight deals from Louisville to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:05 pm
SDF
- SJU
2 stops9h 40m
Southwest
Mon 11/27:30 am
SJU
- SDF
2 stops10h 30m
Southwest
Deal found 7/17![Southwest logo]()
$336
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:15 am
SDF
- SJU
1 stop7h 30m
United Airlines
Sat 9/51:00 am
SJU
- SDF
2 stops12h 11m
United Airlines
Deal found 7/14![United Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:24 pm
SDF
- SJU
1 stop10h 33m
Multiple Airlines
Mon 8/176:00 am
SJU
- SDF
1 stop14h 20m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$372
This American Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:37 am
SDF
- SJU
2 stops10h 47m
American Airlines
Mon 8/35:45 am
SJU
- SDF
1 stop13h 13m
American Airlines
Deal found 7/13![American Airlines logo]()
$386
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:55 pm
SDF
- SJU
1 stop7h 10m
Southwest
Tue 10/205:50 am
SJU
- SDF
1 stop10h 40m
Southwest
Deal found 7/17![Southwest logo]()
$336
This Southwest deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
SDF
- SJU
1 stop6h 20m
Southwest
Sat 9/55:55 am
SJU
- SDF
1 stop6h 45m
Southwest
Deal found 7/18![Southwest logo]()
$336
This American Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/106:00 am
SDF
- SJU
2 stops9h 14m
American Airlines
Tue 1/194:27 pm
SJU
- SDF
1 stop18h 05m
American Airlines
Deal found 7/13![American Airlines logo]()
$401
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:50 am
SDF
- SJU
1 stop11h 00m
Southwest
Mon 9/145:00 am
SJU
- SDF
1 stop6h 10m
Southwest
Deal found 7/14![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:10 pm
SDF
- SJU
1 stop6h 55m
Southwest
Mon 10/1210:50 pm
SJU
- SDF
1 stop12h 40m
Southwest
Deal found 7/14![Southwest logo]()
$365
This Southwest deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:10 pm
SDF
- SJU
1 stop6h 55m
Southwest
Sat 11/216:35 am
SJU
- SDF
1 stop6h 55m
Southwest
Deal found 7/15![Southwest logo]()
$384
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:05 am
SDF
- SJU
2 stops11h 05m
Southwest
Fri 8/216:00 am
SJU
- SDF
2 stops9h 30m
Southwest
Deal found 7/16![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:00 am
SDF
- CPX
2 stops32h 21m
United Airlines
Sat 9/510:48 am
CPX
- SDF
2 stops12h 11m
United Airlines
Deal found 7/13![United Airlines logo]()
$1,692
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:00 am
SDF
- CPX
2 stops32h 21m
United Airlines
Fri 10/3010:48 am
CPX
- SDF
2 stops12h 40m
United Airlines
Deal found 7/16![United Airlines logo]()
$1,692
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:15 am
SDF
- VQS
2 stops13h 15m
United Airlines
Tue 9/17:30 am
VQS
- SDF
2 stops15h 29m
United Airlines
Deal found 7/17![United Airlines logo]()
$3,261
Last-minute flights from Louisville to Puerto RicoDiscover last-minute flight deals from Louisville to Puerto Rico. Data last updated July 18, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Puerto Rico. Data last updated July 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:24 pm
SDF
- SJU
1 stop10h 33m
Multiple Airlines
Wed 8/123:10 am
SJU
- SDF
1 stop11h 30m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Fri 8/215:37 pm
SJU
- SDF
2 stops26h 29m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:56 pm
SDF
- SJU
2 stops17h 15m
Multiple Airlines
Thu 9/105:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:56 pm
SDF
- SJU
2 stops17h 15m
Multiple Airlines
Sun 9/135:12 pm
SJU
- SDF
1 stop17h 13m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:12 am
SDF
- SJU
1 stop13h 22m
Multiple Airlines
Thu 9/105:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:12 am
SDF
- SJU
1 stop13h 22m
Multiple Airlines
Sun 9/135:12 pm
SJU
- SDF
1 stop17h 13m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:15 am
SDF
- VQS
2 stops13h 15m
United Airlines
Tue 9/17:30 am
VQS
- SDF
2 stops15h 29m
United Airlines
Deal found 7/13![United Airlines logo]()
$3,261
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:46 pm
SDF
- SJU
1 stop27h 13m
Multiple Airlines
Thu 9/105:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:19 am
SDF
- SJU
1 stop28h 52m
Multiple Airlines
Thu 9/105:12 pm
SJU
- SDF
1 stop17h 23m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:19 am
SDF
- SJU
1 stop28h 52m
Multiple Airlines
Sun 9/135:12 pm
SJU
- SDF
1 stop17h 13m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:19 am
SDF
- SJU
1 stop28h 52m
Multiple Airlines
Wed 9/164:39 pm
SJU
- SDF
1 stop27h 50m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$310
One-way flights from Louisville to Puerto RicoSearch for one-way flight options from Louisville to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
Search for one-way flight options from Louisville to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:16 pm
SDF
- SJU
1 stop14h 27m
American Airlines
Deal found 7/15![American Airlines logo]()
$168
This American Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:31 am
SDF
- SJU
2 stops11h 02m
American Airlines
Deal found 7/14![American Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:11 pm
SDF
- SJU
3 stops26h 27m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:10 am
SDF
- SJU
1 stop11h 05m
Southwest
Deal found 7/17![Southwest logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/269:19 pm
SDF
- SJU
1 stop13h 57m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$215
This American Airlines deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:50 pm
SDF
- SJU
1 stop8h 49m
American Airlines
Deal found 7/15![American Airlines logo]()
$218
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:19 am
SDF
- SJU
2 stops21h 20m
American Airlines
Deal found 7/18![American Airlines logo]()
$223
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:10 pm
SDF
- SJU
2 stops15h 19m
United Airlines
Deal found 7/17![United Airlines logo]()
$306
Find flight deals from Louisville to Puerto Rico
Keep the following information in mind while searching for Louisville to Puerto Rico flight deals. Data was last updated July 18, 2026.
Round-trip from | $277 (Kiwi.com) |
|---|---|
One-way from | $161 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $501 |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Puerto Rico 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, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
Use the filters below to find and compare flights from Louisville to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Wed 10/28
2:05 pm-11:45 pm
2 stops9h 40m
San Juan Luis Munoz Marin Intl
Mon 11/2
7:30 am-5:00 pm
2 stops10h 30m
$336
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Sun 8/30
6:15 am-1:45 pm
1 stop7h 30m
San Juan Luis Munoz Marin Intl
Sat 9/5
1:00 am-1:11 pm
2 stops12h 11m
$336
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Wed 10/14
3:55 pm-11:05 pm
1 stop7h 10m
San Juan Luis Munoz Marin Intl
Tue 10/20
5:50 am-4:30 pm
1 stop10h 40m
$336
Quickest round-trip
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Tue 9/1
6:00 am-12:20 pm
1 stop6h 20m
San Juan Luis Munoz Marin Intl
Sat 9/5
5:55 am-12:40 pm
1 stop6h 45m
$336
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Thu 9/10
11:50 am-10:50 pm
1 stop11h 00m
San Juan Luis Munoz Marin Intl
Mon 9/14
5:00 am-11:10 am
1 stop6h 10m
$364
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Fri 10/9
5:10 pm-12:05 am
1 stop6h 55m
San Juan Luis Munoz Marin Intl
Mon 10/12
10:50 pm-11:30 am
1 stop12h 40m
$365
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Thu 8/13
9:24 pm-7:57 am
1 stop10h 33m
San Juan Luis Munoz Marin Intl
Mon 8/17
6:00 am-8:20 pm
1 stop14h 20m
$372
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Sun 11/15
5:10 pm-1:05 am
1 stop6h 55m
San Juan Luis Munoz Marin Intl
Sat 11/21
6:35 am-12:30 pm
1 stop6h 55m
$384
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Thu 7/30
7:37 am-6:24 pm
2 stops10h 47m
San Juan Luis Munoz Marin Intl
Mon 8/3
5:45 am-6:58 pm
1 stop13h 13m
$386
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Tue 8/18
7:05 am-6:10 pm
2 stops11h 05m
San Juan Luis Munoz Marin Intl
Fri 8/21
6:00 am-3:30 pm
2 stops9h 30m
$397
Showing 1-10 of 19 resultsSorted by cheapest first
Best time to book a flight from Louisville to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Louisville with our price prediction graph.
SDF-SJU
SDF-CPX
SDF-VQS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Louisville to Puerto Rico
SDF-PR0
SDF-SJU
SDF-CPX
SDF-VQS
What is the cheapest month to book a flight from Louisville to Puerto Rico?
Currently, October is the cheapest month in which you can book a flight from Louisville to Puerto Rico (average of $322). Flying from Louisville to Puerto Rico in December is currently the most expensive (average of $565). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Louisville to Puerto Rico?
To ensure you get the cheapest price possible for a flight from Louisville to Puerto Rico, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated July 18, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Louisville to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Louisville to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Louisville to Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Louisville to Puerto Rico by cabin class
Find flights from Louisville to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Puerto Rico flights
Browse other Louisville and Puerto Rico flight options. Last updated on July 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Louisville to Puerto Rico
Discover the top 4 airlines that operate flights from Louisville to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$205 | Average$453 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$481 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$238 | Average$449 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$259 | Average$472 | FlexibilityNo cancel fee | On-time69% |