$100+ Cheap flights from Philadelphia (PHL) 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
Jul 19 — Jul 261
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to San Juan 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Philadelphia to San Juan are usually found in October or January, booked 24 days in advance, depart on a Monday or Tuesday and return on a Friday
Cheap flight deals from Philadelphia to San Juan
Cheapest
Best
Last-minute
One-way
Cheapest flights from Philadelphia to San JuanExplore the most affordable flight options available from Philadelphia to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.
Explore the most affordable flight options available from Philadelphia to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:20 am
PHL
- SJU
Nonstop3h 44m
Frontier
Sun 9/201:59 am
SJU
- PHL
Nonstop4h 05m
Frontier
Deal found 6/15![Frontier logo]()
$220
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:20 am
PHL
- SJU
Nonstop3h 44m
Frontier
Thu 9/172:36 pm
SJU
- PHL
Nonstop4h 06m
Frontier
Deal found 6/15![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Mon 9/711:41 am
PHL
- SJU
Nonstop4h 00m
Frontier
Mon 9/146:15 am
SJU
- PHL
Nonstop4h 03m
Frontier
Deal found 6/15![Frontier logo]()
$224
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:47 pm
PHL
- SJU
Nonstop4h 03m
Frontier
Sun 9/131:59 am
SJU
- PHL
Nonstop4h 05m
Frontier
Deal found 6/14![Frontier logo]()
$225
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:23 am
PHL
- SJU
Nonstop3h 56m
Frontier
Sat 9/196:15 am
SJU
- PHL
Nonstop4h 03m
Frontier
Deal found 6/15![Frontier logo]()
$227
This Cheapflightsfares deal was found by Cheapflights users on 6/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/177:47 pm
PHL
- SJU
Nonstop4h 09m
Frontier
Sun 6/216:44 am
SJU
- PHL
Nonstop4h 06m
Frontier
Deal found 6/15![Frontier logo]()
$228
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:41 am
PHL
- SJU
Nonstop4h 00m
Frontier
Fri 9/46:30 am
SJU
- PHL
Nonstop4h 06m
Frontier
Deal found 6/15![Frontier logo]()
$229
This deal was found by Cheapflights users on 6/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:23 am
PHL
- SJU
Nonstop3h 56m
Frontier
Fri 11/62:59 am
SJU
- PHL
Nonstop4h 05m
Frontier
Deal found 6/14![Frontier logo]()
$230
This Cheapflightsfares deal was found by Cheapflights users on 6/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:47 pm
PHL
- SJU
Nonstop4h 03m
Frontier
Tue 10/271:59 am
SJU
- PHL
Nonstop4h 05m
Frontier
Deal found 6/16![Frontier logo]()
$231
This Frontier deal was found by Cheapflights users on 6/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:23 am
PHL
- SJU
Nonstop3h 56m
Frontier
Wed 9/166:15 am
SJU
- PHL
Nonstop4h 03m
Frontier
Deal found 6/14![Frontier logo]()
$233
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:59 pm
PHL
- SJU
Nonstop3h 58m
Frontier
Wed 9/91:59 am
SJU
- PHL
Nonstop4h 05m
Frontier
Deal found 6/15![Frontier logo]()
$234
This Frontier deal was found by Cheapflights users on 6/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:23 am
PHL
- SJU
Nonstop3h 56m
Frontier
Mon 9/216:15 am
SJU
- PHL
Nonstop4h 03m
Frontier
Deal found 6/14![Frontier logo]()
$235
Best flights from Philadelphia to San JuanDiscover carefully curated flight deals from Philadelphia to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 19, 2026.
Discover carefully curated flight deals from Philadelphia to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 19, 2026.
This Southwest deal was found by Cheapflights users on 6/15. 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.
Sat 8/229:20 am
PHL
- SJU
1 stop7h 20m
Southwest
Fri 8/286:30 am
SJU
- PHL
1 stop8h 55m
Southwest
Deal found 6/15![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 6/18. 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.
Wed 9/166:25 am
PHL
- SJU
2 stops11h 45m
Southwest
Wed 9/2310:30 am
SJU
- PHL
1 stop7h 05m
Southwest
Deal found 6/18![Southwest logo]()
$344
This Southwest deal was found by Cheapflights users on 6/15. 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.
Wed 8/1910:45 am
PHL
- SJU
2 stops11h 15m
Southwest
Wed 8/2610:30 am
SJU
- PHL
1 stop7h 05m
Southwest
Deal found 6/15![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 6/17. 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.
Fri 8/282:10 pm
PHL
- SJU
2 stops9h 40m
Southwest
Sun 8/305:00 am
SJU
- PHL
1 stop6h 05m
Southwest
Deal found 6/17![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 6/18. 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 10/84:30 pm
PHL
- SJU
1 stop7h 35m
Southwest
Wed 10/145:00 am
SJU
- PHL
2 stops11h 40m
Southwest
Deal found 6/18![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 6/18. 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.
Fri 9/115:55 am
PHL
- SJU
2 stops11h 00m
Southwest
Mon 9/145:00 am
SJU
- PHL
1 stop10h 25m
Southwest
Deal found 6/18![Southwest logo]()
$366
This Southwest deal was found by Cheapflights users on 6/16. 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.
Fri 9/412:45 pm
PHL
- SJU
2 stops10h 20m
Southwest
Wed 9/910:30 am
SJU
- PHL
2 stops11h 15m
Southwest
Deal found 6/16![Southwest logo]()
$384
This Southwest deal was found by Cheapflights users on 6/14. 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 8/134:40 pm
PHL
- SJU
1 stop7h 10m
Southwest
Sun 8/169:25 pm
SJU
- PHL
1 stop12h 15m
Southwest
Deal found 6/14![Southwest logo]()
$386
This Southwest deal was found by Cheapflights users on 6/14. 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 8/1412:45 pm
PHL
- SJU
2 stops9h 25m
Southwest
Sun 8/169:25 pm
SJU
- PHL
1 stop12h 15m
Southwest
Deal found 6/14![Southwest logo]()
$386
This Southwest deal was found by Cheapflights users on 6/16. 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.
Sun 8/301:40 pm
PHL
- SJU
2 stops10h 50m
Southwest
Wed 9/25:15 am
SJU
- PHL
2 stops10h 45m
Southwest
Deal found 6/16![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 6/15. 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.
Thu 11/125:20 pm
PHL
- SJU
1 stop6h 35m
Southwest
Thu 11/196:15 am
SJU
- PHL
2 stops11h 20m
Southwest
Deal found 6/15![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 6/17. 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.
Fri 10/1611:20 am
PHL
- SJU
2 stops11h 50m
Southwest
Sun 10/255:30 am
SJU
- PHL
2 stops10h 25m
Southwest
Deal found 6/17![Southwest logo]()
$426
Last-minute flights from Philadelphia to San JuanDiscover last-minute flight deals from Philadelphia to San Juan. Data last updated June 19, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to San Juan. Data last updated June 19, 2026 and is based on user searches.
This eDestinos deal was found by Cheapflights users on 6/18. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:47 pm
PHL
- SJU
Nonstop4h 09m
Frontier
Wed 7/156:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 6/18![Frontier logo]()
$258
This eDestinos deal was found by Cheapflights users on 6/15. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:50 pm
PHL
- SJU
1 stop8h 33m
Frontier
Wed 7/155:45 pm
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 6/15![Frontier logo]()
$260
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Fri 7/176:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 6/15![Frontier logo]()
$252
This Super.com deal was found by Cheapflights users on 6/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Thu 7/236:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 6/18![Frontier logo]()
$255
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Thu 7/306:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 6/18![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Sun 7/268:03 pm
PHL
- SJU
Nonstop3h 55m
Frontier
Thu 8/62:36 pm
SJU
- PHL
Nonstop3h 58m
Frontier
Deal found 6/17![Frontier logo]()
$262
This Super.com deal was found by Cheapflights users on 6/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Fri 7/316:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 6/17![Frontier logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/2610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Wed 7/296:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 6/18![Frontier logo]()
$267
One-way flights from Philadelphia to San JuanSearch for one-way flight options from Philadelphia to San Juan. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
Search for one-way flight options from Philadelphia to San Juan. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:23 am
PHL
- SJU
Nonstop3h 56m
Frontier
Deal found 6/14![Frontier logo]()
$100
This Cheapflightsfares deal was found by Cheapflights users on 6/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:20 am
PHL
- SJU
Nonstop3h 44m
Frontier
Deal found 6/16![Frontier logo]()
$102
This Super.com deal was found by Cheapflights users on 6/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:20 am
PHL
- SJU
Nonstop3h 44m
Frontier
Deal found 6/16![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 8/107:29 pm
PHL
- SJU
Nonstop3h 55m
Frontier
Deal found 6/18![Frontier logo]()
$110
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Deal found 6/17![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 6/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:20 am
PHL
- SJU
Nonstop3h 44m
Frontier
Deal found 6/18![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Wed 8/1210:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Deal found 6/18![Frontier logo]()
$119
This Trip.com deal was found by Cheapflights users on 6/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:59 pm
PHL
- SJU
Nonstop3h 58m
Frontier
Deal found 6/16![Frontier logo]()
$120
Find flight deals from Philadelphia to San Juan
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) 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 June 19, 2026.
Round-trip from | $220 (Cheapflightsfares) |
|---|---|
One-way from | $100 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $378 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia 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 June 19, 2026.
Use the filters below to find and compare flights from Philadelphia to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Sat 8/22
9:20 am-4:40 pm
1 stop7h 20m
San Juan Luis Munoz Marin Intl
Fri 8/28
6:30 am-3:25 pm
1 stop8h 55m
$314
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Wed 9/16
6:25 am-6:10 pm
2 stops11h 45m
San Juan Luis Munoz Marin Intl
Wed 9/23
10:30 am-5:35 pm
1 stop7h 05m
$344
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Wed 8/19
10:45 am-10:00 pm
2 stops11h 15m
San Juan Luis Munoz Marin Intl
Wed 8/26
10:30 am-5:35 pm
1 stop7h 05m
$354
Quickest round-trip
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Fri 8/28
2:10 pm-11:50 pm
2 stops9h 40m
San Juan Luis Munoz Marin Intl
Sun 8/30
5:00 am-11:05 am
1 stop6h 05m
$354
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Thu 10/8
4:30 pm-12:05 am
1 stop7h 35m
San Juan Luis Munoz Marin Intl
Wed 10/14
5:00 am-4:40 pm
2 stops11h 40m
$364
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Fri 9/11
5:55 am-4:55 pm
2 stops11h 00m
San Juan Luis Munoz Marin Intl
Mon 9/14
5:00 am-3:25 pm
1 stop10h 25m
$366
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Fri 9/4
12:45 pm-11:05 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Wed 9/9
10:30 am-9:45 pm
2 stops11h 15m
$384
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Thu 8/13
4:40 pm-11:50 pm
1 stop7h 10m
San Juan Luis Munoz Marin Intl
Sun 8/16
9:25 pm-9:40 am
1 stop12h 15m
$386
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Fri 8/14
12:45 pm-10:10 pm
2 stops9h 25m
San Juan Luis Munoz Marin Intl
Sun 8/16
9:25 pm-9:40 am
1 stop12h 15m
$386
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Sun 8/30
1:40 pm-12:30 am
2 stops10h 50m
San Juan Luis Munoz Marin Intl
Wed 9/2
5:15 am-4:00 pm
2 stops10h 45m
$394
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from Philadelphia to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Philadelphia with our price prediction graph.
PHL-PR1
PHL-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 Philadelphia to San Juan
PHL-PR1
PHL-SJU
What is the cheapest month to book a flight from Philadelphia to San Juan?
Currently, October is the cheapest month in which you can book a flight from Philadelphia to San Juan (average of $214). Flying from Philadelphia to San Juan in June is currently the most expensive (average of $411). 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.
What is the cheapest time of day to fly from PHL to SJU?
Find hourly flight availability from Philadelphia to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 19, 2026.
It’s typically best to fly out from Philadelphia to San Juan at noon. Doing so could potentially save you 29% on the flight price compared to flying in the afternoon, which is usually more expensive.
Weekly flight availability from Philadelphia to San Juan
Explore weekly flight availability from Philadelphia to San Juan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 19, 2026.
The most flights from PHL to PR1 are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from Philadelphia to San Juan?
How often are flights from Philadelphia to San Juan delayed?
About 31% of weekly flights between Philadelphia and San Juan have experienced delays in the past year, with the average delay time being 143 minutes.
What is the most punctual flight time for Philadelphia to San Juan flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Philadelphia to San Juan flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 28% of flights being delayed.
How far ahead should I book a flight from Philadelphia to San Juan?
Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Philadelphia to San Juan?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to San Juan. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Philadelphia to San Juan flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 June 19, 2026.
Read through reviews of airlines operating flights from Philadelphia to San Juan, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Philadelphia 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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Philadelphia and San Juan flights
Browse other Philadelphia and San Juan flight options. Last updated on June 19, 2026.
Other flights from Philadelphia
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Top 5 airlines flying from Philadelphia to San Juan
Discover the top 5 airlines that operate flights from Philadelphia 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 June 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$142 | Average$349 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$197 | Average$374 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$294 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$215 | Average$375 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$500 | FlexibilityNo cancel fee | On-time71% |