$135+ Cheap flights from Louisville (SDF) to San Juan
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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SJU
Aug 23 — Aug 301
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to San Juan with Cheapflights
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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 Louisville to San Juan
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Cheapest flights from Louisville to San JuanExplore the most affordable flight options available from Louisville to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
Explore the most affordable flight options available from Louisville to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:08 pm
SDF
- SJU
1 stop28h 30m
Multiple Airlines
Wed 11/45:39 pm
SJU
- SDF
1 stop27h 50m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/179:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Sun 8/306:35 am
SJU
- SDF
1 stop27h 54m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/148:30 pm
SDF
- SJU
1 stop28h 11m
Multiple Airlines
Thu 8/206:35 am
SJU
- SDF
1 stop27h 14m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$288
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.
Mon 8/179:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Fri 8/215:37 pm
SJU
- SDF
2 stops26h 29m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$308
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.
Sat 8/228:46 pm
SDF
- SJU
1 stop27h 13m
Multiple Airlines
Sun 8/306:35 am
SJU
- SDF
1 stop27h 54m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/109:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Sat 8/155:22 pm
SJU
- SDF
1 stop17h 10m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/192:56 pm
SDF
- SJU
2 stops17h 15m
Multiple Airlines
Sun 8/236:35 am
SJU
- SDF
1 stop27h 14m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$328
Best flights from Louisville to San JuanDiscover carefully curated flight deals from Louisville to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
Discover carefully curated flight deals from Louisville to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:56 pm
SDF
- SJU
1 stop7h 26m
United Airlines
Tue 11/178:05 am
SJU
- SDF
2 stops11h 56m
United Airlines
Deal found 7/18![United Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 7/20. 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 10/226:55 pm
SDF
- SJU
1 stop6h 25m
Southwest
Tue 10/2710:00 am
SJU
- SDF
1 stop7h 10m
Southwest
Deal found 7/20![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.
Mon 8/177:20 am
SDF
- SJU
1 stop6h 25m
Southwest
Fri 8/215:30 am
SJU
- SDF
1 stop10h 00m
Southwest
Deal found 7/18![Southwest logo]()
$336
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.
Tue 9/297:00 am
SDF
- SJU
1 stop7h 44m
United Airlines
Sat 10/33:56 pm
SJU
- SDF
1 stop8h 03m
United Airlines
Deal found 7/23![United Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 7/20. 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 10/236:15 pm
SDF
- SJU
2 stops7h 05m
Southwest
Fri 11/65:35 am
SJU
- SDF
2 stops10h 30m
Southwest
Deal found 7/20![Southwest logo]()
$350
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.
Thu 9/172:15 pm
SDF
- SJU
2 stops8h 50m
Southwest
Sun 9/205:00 am
SJU
- SDF
2 stops9h 10m
Southwest
Deal found 7/18![Southwest logo]()
$364
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2210:23 am
SDF
- SJU
2 stops13h 27m
United Airlines
Thu 9/241:25 pm
SJU
- SDF
1 stop10h 24m
United Airlines
Deal found 7/18![United Airlines logo]()
$426
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.
Thu 10/811:50 am
SDF
- SJU
2 stops10h 05m
Southwest
Mon 10/1210:50 pm
SJU
- SDF
1 stop12h 40m
Southwest
Deal found 7/18![Southwest logo]()
$385
This United Airlines deal was found by Cheapflights users on 7/21. 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 10/247:00 am
SDF
- SJU
1 stop7h 44m
United Airlines
Sun 11/18:25 am
SJU
- SDF
1 stop9h 36m
United Airlines
Deal found 7/21![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 7/21. 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 10/2411:55 am
SDF
- SJU
2 stops9h 35m
Southwest
Sun 11/15:35 am
SJU
- SDF
2 stops10h 30m
Southwest
Deal found 7/21![Southwest logo]()
$388
Last-minute flights from Louisville to San JuanDiscover last-minute flight deals from Louisville to San Juan. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to San Juan. Data last updated July 24, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/109:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Sat 8/155:22 pm
SJU
- SDF
1 stop17h 10m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 8/122:56 pm
SDF
- SJU
2 stops33h 45m
Multiple Airlines
Sat 8/228:57 pm
SJU
- SDF
1 stop19h 32m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/148:30 pm
SDF
- SJU
1 stop28h 11m
Multiple Airlines
Thu 8/206:35 am
SJU
- SDF
1 stop27h 14m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/179:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Sun 8/306:35 am
SJU
- SDF
1 stop27h 54m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$275
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.
Mon 8/179:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Fri 8/215:37 pm
SJU
- SDF
2 stops26h 29m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/192:56 pm
SDF
- SJU
2 stops17h 15m
Multiple Airlines
Sun 8/236:35 am
SJU
- SDF
1 stop27h 14m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$328
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.
Sat 8/228:46 pm
SDF
- SJU
1 stop27h 13m
Multiple Airlines
Sun 8/306:35 am
SJU
- SDF
1 stop27h 54m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$320
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.
Fri 8/2811:10 am
SDF
- SJU
1 stop12h 49m
American Airlines
Tue 9/16:00 am
SJU
- SDF
2 stops10h 59m
American Airlines
Deal found 7/22![American Airlines logo]()
$336
One-way flights from Louisville to San JuanSearch for one-way flight options from Louisville to San Juan. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
Search for one-way flight options from Louisville to San Juan. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
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.
Mon 8/179:10 pm
SDF
- SJU
1 stop19h 01m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 stops33h 38m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$156
This Southwest deal was found by Cheapflights users on 7/19. 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 8/1812:50 pm
SDF
- SJU
1 stop6h 10m
Southwest
Deal found 7/19![Southwest logo]()
$168
This American Airlines deal was found by Cheapflights users on 7/19. 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 8/186:05 am
SDF
- SJU
2 stops10h 06m
American Airlines
Deal found 7/19![American Airlines logo]()
$171
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.
Thu 9/177:27 pm
SDF
- SJU
2 stops15h 33m
American Airlines
Deal found 7/18![American Airlines logo]()
$174
This United Airlines deal was found by Cheapflights users on 7/19. 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 12/59:00 am
SDF
- SJU
2 stops14h 36m
United Airlines
Deal found 7/19![United Airlines logo]()
$186
This Southwest deal was found by Cheapflights users on 7/19. 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 12/57:10 am
SDF
- SJU
1 stop11h 05m
Southwest
Deal found 7/19![Southwest logo]()
$208
This American Airlines deal was found by Cheapflights users on 7/19. 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 7/19![American Airlines logo]()
$218
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.
Sat 8/16:51 pm
SDF
- SJU
1 stop16h 13m
American Airlines
Deal found 7/23![American Airlines logo]()
$238
Find flight deals from Louisville to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to San Juan (PR1). 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 24, 2026.
Round-trip from | $235 (Kiwi.com) |
|---|---|
One-way from | $135 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $501 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 24, 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
Cheapest round-trip
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Fri 11/13
1:56 pm-10:22 pm
1 stop7h 26m
San Juan Luis Munoz Marin Intl
Tue 11/17
8:05 am-7:01 pm
2 stops11h 56m
$336
Quickest round-trip
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Thu 10/22
6:55 pm-1:20 am
1 stop6h 25m
San Juan Luis Munoz Marin Intl
Tue 10/27
10:00 am-5:10 pm
1 stop7h 10m
$336
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Mon 8/17
7:20 am-1:45 pm
1 stop6h 25m
San Juan Luis Munoz Marin Intl
Fri 8/21
5:30 am-3:30 pm
1 stop10h 00m
$336
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Tue 9/29
7:00 am-2:44 pm
1 stop7h 44m
San Juan Luis Munoz Marin Intl
Sat 10/3
3:56 pm-11:59 pm
1 stop8h 03m
$336
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Fri 10/23
6:15 pm-1:20 am
2 stops7h 05m
San Juan Luis Munoz Marin Intl
Fri 11/6
5:35 am-3:05 pm
2 stops10h 30m
$350
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Thu 9/17
2:15 pm-11:05 pm
2 stops8h 50m
San Juan Luis Munoz Marin Intl
Sun 9/20
5:00 am-2:10 pm
2 stops9h 10m
$364
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Thu 10/8
11:50 am-9:55 pm
2 stops10h 05m
San Juan Luis Munoz Marin Intl
Mon 10/12
10:50 pm-11:30 am
1 stop12h 40m
$385
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Sat 10/24
11:55 am-9:30 pm
2 stops9h 35m
San Juan Luis Munoz Marin Intl
Sun 11/1
5:35 am-3:05 pm
2 stops10h 30m
$388
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Tue 9/22
10:23 am-11:50 pm
2 stops13h 27m
San Juan Luis Munoz Marin Intl
Thu 9/24
1:25 pm-11:49 pm
1 stop10h 24m
$426
LouisvilleSan Juan
SDF - SJU
SDFSJU
Louisville Intl
Sat 10/24
7:00 am-2:44 pm
1 stop7h 44m
San Juan Luis Munoz Marin Intl
Sun 11/1
8:25 am-5:01 pm
1 stop9h 36m
$426
Showing 1-10 of 17 resultsSorted by cheapest first
Best time to book a flight from Louisville to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Louisville with our price prediction graph.
SDF-PR1
SDF-SJU
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 San Juan
SDF-PR1
SDF-SJU
What is the cheapest month to book a flight from Louisville to San Juan?
Currently, October is the cheapest month in which you can book a flight from Louisville to San Juan (average of $322). Flying from Louisville to San Juan 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 much does it cost to fly round-trip from Louisville to San Juan?
Airfare is below average for this route at the moment.
Louisville to San Juan flights typically cost between $404 and $566 in October.The cheapest round-trip price found within the last 5 days was $235 on Multiple Airlines (Oct 26-Nov 4).
How far ahead should I book a flight from Louisville to San Juan?
To ensure you get the cheapest price possible for a flight from Louisville to San Juan, 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 San Juan
Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated July 24, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Louisville to San Juan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
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 San Juan. 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 San Juan
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Complete your trip
Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Louisville to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and San Juan flights
Browse other Louisville and San Juan flight options. Last updated on July 24, 2026.
Other flights from Louisville
Browse through other flights departing from Louisville. Flights are based on user searches made on Cheapflights and were last updated on July 24, 2026.
Popular flight searches
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Top 4 airlines flying from Louisville to San Juan
Discover the top 4 airlines that operate flights from Louisville to San Juan. 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 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$205 | Average$463 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$238 | Average$444 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$245 | Average$482 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$259 | Average$472 | FlexibilityNo cancel fee | On-time69% |