$151+ Cheap flights from San Juan to Louisville (SDF)
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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SDF
Aug 26 — Sep 21
Round-trip
1 adult, Economy
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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 San Juan to Louisville
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Cheapest flights from San Juan to LouisvilleExplore the most affordable flight options available from San Juan to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.
Explore the most affordable flight options available from San Juan to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 10/2112:13 pm
SJU
- SDF
1 stop11h 54m
American Airlines
Sun 10/255:04 am
SDF
- SJU
1 stop6h 16m
American Airlines
Deal found 7/26![American Airlines logo]()
$336
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/283:47 pm
SJU
- SDF
1 stop7h 24m
American Airlines
Fri 9/116:18 am
SDF
- SJU
1 stop8h 32m
American Airlines
Deal found 7/27![American Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Tue 10/137:30 am
SJU
- SDF
2 stops10h 34m
American Airlines
Sat 10/175:04 am
SDF
- SJU
1 stop6h 16m
American Airlines
Deal found 7/24![American Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 7/22. 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 10/136:35 am
SJU
- SDF
1 stop10h 35m
Southwest
Sat 10/1711:55 am
SDF
- SJU
2 stops9h 35m
Southwest
Deal found 7/22![Southwest logo]()
$350
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/41:25 pm
SJU
- SDF
1 stop9h 34m
United Airlines
Tue 9/85:15 am
SDF
- SJU
1 stop9h 29m
United Airlines
Deal found 7/24![United Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 7/24. 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 9/45:00 am
SJU
- SDF
2 stops8h 05m
Southwest
Tue 9/85:30 am
SDF
- SJU
1 stop7h 20m
Southwest
Deal found 7/24![Southwest logo]()
$376
This American Airlines deal was found by Cheapflights users on 7/24. 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 9/47:03 am
SJU
- SDF
2 stops10h 56m
American Airlines
Tue 9/88:16 am
SDF
- SJU
2 stops10h 17m
American Airlines
Deal found 7/24![American Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 9/162:58 pm
SJU
- SDF
1 stop7h 44m
American Airlines
Mon 9/217:27 pm
SDF
- SJU
2 stops18h 30m
American Airlines
Deal found 7/26![American Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/13:10 pm
SJU
- SDF
1 stop7h 31m
Delta
Mon 12/73:24 pm
SDF
- SJU
1 stop6h 56m
Delta
Deal found 7/24![Delta logo]()
$398
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Tue 12/12:29 pm
SJU
- SDF
1 stop10h 51m
American Airlines
Mon 12/76:29 am
SDF
- SJU
1 stop7h 28m
American Airlines
Deal found 7/23![American Airlines logo]()
$399
Best flights from San Juan to LouisvilleDiscover carefully curated flight deals from San Juan to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated flight deals from San Juan to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/22. 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 9/295:15 am
SJU
- SDF
2 stops10h 00m
Southwest
Thu 10/86:55 pm
SDF
- SJU
1 stop6h 25m
Southwest
Deal found 7/22![Southwest logo]()
$336
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Wed 10/2110:36 am
SJU
- SDF
2 stops10h 54m
American Airlines
Sun 10/255:04 am
SDF
- SJU
1 stop6h 16m
American Airlines
Deal found 7/25![American Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 7/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:30 am
SJU
- SDF
1 stop6h 19m
Delta
Sat 10/177:00 am
SDF
- SJU
1 stop6h 21m
Delta
Deal found 7/24![Delta logo]()
$336
This Southwest deal was found by Cheapflights users on 7/25. 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 10/136:35 am
SJU
- SDF
1 stop10h 35m
Southwest
Sat 10/1711:55 am
SDF
- SJU
2 stops9h 35m
Southwest
Deal found 7/25![Southwest logo]()
$336
Last-minute flights from San Juan to LouisvilleDiscover last-minute flight deals from San Juan to Louisville. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Louisville. Data last updated July 27, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Wed 7/297:00 am
SJU
- SDF
1 stop16h 03m
American Airlines
Sat 8/13:35 pm
SDF
- SJU
1 stop6h 58m
American Airlines
Deal found 7/22![American Airlines logo]()
$485
This American Airlines deal was found by Cheapflights users on 7/22. 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 8/37:25 am
SJU
- SDF
1 stop17h 09m
American Airlines
Sun 8/96:28 am
SDF
- SJU
1 stop16h 47m
American Airlines
Deal found 7/22![American Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/67:30 am
SJU
- SDF
1 stop15h 41m
American Airlines
Sat 8/810:55 am
SDF
- SJU
2 stops11h 00m
American Airlines
Deal found 7/27![American Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 8/103:10 am
SJU
- SDF
2 stops35h 06m
Multiple Airlines
Thu 8/1311:12 am
SDF
- SJU
1 stop13h 29m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Tue 8/113:36 pm
SJU
- SDF
1 stop22h 40m
Multiple Airlines
Fri 8/149:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$451
This American Airlines deal was found by Cheapflights users on 7/23. 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 8/277:03 am
SJU
- SDF
2 stops10h 56m
American Airlines
Fri 9/48:16 am
SDF
- SJU
1 stop15h 43m
American Airlines
Deal found 7/23![American Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/283:47 pm
SJU
- SDF
1 stop7h 24m
American Airlines
Fri 9/116:18 am
SDF
- SJU
1 stop8h 32m
American Airlines
Deal found 7/27![American Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/282:20 pm
SJU
- SDF
1 stop7h 55m
United Airlines
Sat 8/297:10 am
SDF
- SJU
2 stops13h 28m
United Airlines
Deal found 7/22![United Airlines logo]()
$426
One-way flights from San Juan to LouisvilleSearch for one-way flight options from San Juan to Louisville. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way flight options from San Juan to Louisville. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 9/107:00 am
SJU
- SDF
1 stop27h 35m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$151
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:15 am
SJU
- SDF
1 stop9h 39m
Delta
Deal found 7/27![Delta logo]()
$168
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 10/137:30 am
SJU
- SDF
2 stops10h 34m
American Airlines
Deal found 7/25![American Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Tue 10/135:12 pm
SJU
- SDF
3 stops27h 19m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$212
This American Airlines deal was found by Cheapflights users on 7/26. 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 8/2412:55 am
SJU
- SDF
1 stop17h 05m
American Airlines
Deal found 7/26![American Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Tue 8/47:00 am
SJU
- SDF
1 stop16h 03m
American Airlines
Deal found 7/26![American Airlines logo]()
$238
This United Airlines deal was found by Cheapflights users on 7/23. 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 8/241:00 am
SJU
- SDF
2 stops15h 38m
United Airlines
Deal found 7/23![United Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 9/15:25 pm
SJU
- SDF
3 stops20h 51m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$268
Find flight deals from San Juan to Louisville
Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 27, 2026.
Round-trip from | $336 (American Airlines) |
|---|---|
One-way from | $151 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $466 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Juan to Louisville 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 27, 2026.
Use the filters below to find and compare flights from San Juan to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Tue 9/29
5:15 am-3:15 pm
2 stops10h 00m
Louisville Intl
Thu 10/8
6:55 pm-1:20 am
1 stop6h 25m
$336
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Wed 10/21
10:36 am-9:30 pm
2 stops10h 54m
Louisville Intl
Sun 10/25
5:04 am-11:20 am
1 stop6h 16m
$336
Quickest round-trip
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Tue 10/13
7:30 am-1:49 pm
1 stop6h 19m
Louisville Intl
Sat 10/17
7:00 am-1:21 pm
1 stop6h 21m
$336
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Tue 10/13
6:35 am-5:10 pm
1 stop10h 35m
Louisville Intl
Sat 10/17
11:55 am-9:30 pm
2 stops9h 35m
$336
Cheapest one-way
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Fri 10/9
10:50 pm-8:45 am
1 stop9h 55m
$168
Quickest one-way
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Tue 10/13
7:15 am-4:54 pm
1 stop9h 39m
$168
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Tue 9/1
10:33 am-11:11 pm
2 stops12h 38m
$168
San JuanLouisville
SJU - SDF
SJUSDF
San Juan Luis Munoz Marin Intl
Tue 10/13
7:30 am-6:04 pm
2 stops10h 34m
$172
Sorted by cheapest first
Best time to book a flight from San Juan to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from San Juan with our price prediction graph.
PR1-SDF
SJU-SDF
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 San Juan to Louisville
PR1-SDF
SJU-SDF
What is the cheapest month to book a flight from San Juan to Louisville?
Currently, February is the cheapest month in which you can book a flight from San Juan to Louisville (average of $250). Flying from San Juan to Louisville in June is currently the most expensive (average of $549). 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 much does it cost to fly round-trip from San Juan to Louisville?
Airfare is typical for this route at the moment.
San Juan to Louisville flights typically cost between $336 and $398 in October.The cheapest round-trip price found within the last 5 days was $336 on American Airlines (Oct 21-Oct 25).
Reviews of airlines servicing Louisville
Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated July 27, 2026.
Read through reviews of airlines operating flights from San Juan to Louisville, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Overall
8.0
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from San Juan to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsCorydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown
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Complete your trip
Complete your trip to Louisville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Juan to Louisville by cabin class
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Other flights to Louisville
Explore flights to Louisville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 27, 2026.
San Juan and Louisville flights
Browse other San Juan and Louisville flight options. Last updated on July 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from San Juan to Louisville
Discover the top 3 airlines that operate flights from San Juan to Louisville. 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 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$199 | Average$389 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$205 | Average$474 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$226 | Average$515 | FlexibilityNo cancel fee | On-time71% |