$96+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
Aug 27 — Sep 31
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 59 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 July 28, 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 July 28, 2026.
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.
Fri 9/258:02 pm
PHL
- SJU
Nonstop3h 59m
Frontier
Wed 9/304:39 pm
SJU
- PHL
1 stop16h 02m
Frontier
Deal found 7/27![Frontier logo]()
$199
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 9/110:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Thu 9/35:15 pm
SJU
- PHL
1 stop8h 01m
Frontier
Deal found 7/27![Frontier logo]()
$200
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:30 am
PHL
- SJU
Nonstop3h 49m
Frontier
Sun 9/611:24 am
SJU
- PHL
Nonstop4h 02m
Frontier
Deal found 7/26![Frontier logo]()
$201
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:50 pm
PHL
- SJU
Nonstop3h 58m
Frontier
Thu 9/1012:59 am
SJU
- PHL
Nonstop3h 48m
Frontier
Deal found 7/26![Frontier logo]()
$202
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:55 am
PHL
- SJU
Nonstop4h 02m
Frontier
Sun 8/306:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 7/26![Frontier logo]()
$203
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 pm
PHL
- SJU
Nonstop3h 57m
Frontier
Fri 9/182:51 pm
SJU
- PHL
Nonstop4h 01m
Frontier
Deal found 7/23![Frontier logo]()
$204
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:02 pm
PHL
- SJU
Nonstop3h 59m
Frontier
Mon 9/1412:59 am
SJU
- PHL
Nonstop3h 48m
Frontier
Deal found 7/26![Frontier logo]()
$205
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.
Sat 9/58:35 am
PHL
- SJU
1 stop16h 21m
Frontier
Wed 9/95:27 pm
SJU
- PHL
Nonstop4h 00m
Frontier
Deal found 7/26![Frontier logo]()
$206
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Sat 8/2910:39 am
SJU
- PHL
Nonstop4h 01m
Frontier
Deal found 7/26![Frontier logo]()
$207
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:59 pm
PHL
- SJU
Nonstop3h 58m
Frontier
Sun 9/2012:59 am
SJU
- PHL
Nonstop3h 48m
Frontier
Deal found 7/26![Frontier logo]()
$209
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:24 am
PHL
- SJU
Nonstop3h 49m
Frontier
Sat 10/312:59 am
SJU
- PHL
Nonstop3h 48m
Frontier
Deal found 7/26![Frontier logo]()
$210
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 July 28, 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 July 28, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:16 am
PHL
- SJU
1 stop9h 26m
United Airlines
Sat 9/51:00 am
SJU
- PHL
2 stops11h 23m
United Airlines
Deal found 7/27![United Airlines logo]()
$278
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.
Sat 9/59:20 am
PHL
- SJU
2 stops12h 40m
Southwest
Wed 9/96:00 am
SJU
- PHL
2 stops11h 35m
Southwest
Deal found 7/25![Southwest logo]()
$328
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:38 pm
PHL
- SJU
Nonstop3h 52m
JetBlue
Sat 8/153:33 pm
SJU
- PHL
1 stop6h 56m
JetBlue
Deal found 7/23![JetBlue logo]()
$437
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:15 am
PHL
- SJU
1 stop6h 31m
Delta
Wed 8/197:00 am
SJU
- PHL
1 stop9h 11m
Delta
Deal found 7/23![Delta logo]()
$471
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:55 pm
PHL
- SJU
1 stop7h 10m
Southwest
Fri 8/285:00 am
SJU
- PHL
1 stop10h 25m
Southwest
Deal found 7/23![Southwest logo]()
$331
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:16 am
PHL
- SJU
1 stop9h 26m
United Airlines
Tue 9/151:00 am
SJU
- PHL
2 stops11h 23m
United Airlines
Deal found 7/25![United Airlines logo]()
$346
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.
Sun 9/204:05 pm
PHL
- SJU
1 stop8h 30m
Southwest
Wed 9/236:00 am
SJU
- PHL
2 stops11h 35m
Southwest
Deal found 7/24![Southwest logo]()
$341
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.
Wed 9/1611:04 am
PHL
- SJU
2 stops12h 46m
United Airlines
Sat 9/191:00 am
SJU
- PHL
2 stops11h 23m
United Airlines
Deal found 7/23![United Airlines logo]()
$350
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:45 pm
PHL
- SJU
2 stops10h 20m
Southwest
Thu 8/278:55 pm
SJU
- PHL
1 stop12h 45m
Southwest
Deal found 7/23![Southwest logo]()
$382
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 10/136:10 am
PHL
- SJU
2 stops14h 28m
United Airlines
Sat 10/171:00 am
SJU
- PHL
2 stops8h 33m
United Airlines
Deal found 7/23![United Airlines logo]()
$426
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:45 pm
PHL
- SJU
2 stops10h 20m
Southwest
Thu 8/138:55 pm
SJU
- PHL
1 stop12h 45m
Southwest
Deal found 7/26![Southwest logo]()
$468
Last-minute flights from Philadelphia to San JuanDiscover last-minute flight deals from Philadelphia to San Juan. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to San Juan. Data last updated July 28, 2026 and is based on user searches.
This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Tue 9/86:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 7/25![Frontier logo]()
$204
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Wed 8/2610:39 am
SJU
- PHL
Nonstop4h 01m
Frontier
Deal found 7/24![Frontier logo]()
$206
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Sat 8/2910:39 am
SJU
- PHL
Nonstop4h 01m
Frontier
Deal found 7/26![Frontier logo]()
$207
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:29 pm
PHL
- SJU
Nonstop3h 55m
Frontier
Thu 8/207:55 pm
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 7/23![Frontier logo]()
$211
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.
Mon 8/1710:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Tue 8/185:37 pm
SJU
- PHL
1 stop7h 39m
Frontier
Deal found 7/27![Frontier logo]()
$213
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:55 am
PHL
- SJU
Nonstop4h 02m
Frontier
Sun 8/306:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 7/26![Frontier logo]()
$203
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:30 am
PHL
- SJU
Nonstop3h 49m
Frontier
Sat 8/2910:39 am
SJU
- PHL
Nonstop4h 01m
Frontier
Deal found 7/26![Frontier logo]()
$212
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Sat 9/510:39 am
SJU
- PHL
Nonstop4h 01m
Frontier
Deal found 7/26![Frontier logo]()
$205
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Sun 8/306:44 am
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 7/27![Frontier logo]()
$201
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Sat 8/295:50 pm
SJU
- PHL
Nonstop4h 04m
Frontier
Deal found 7/26![Frontier logo]()
$210
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Sat 8/2910:39 am
SJU
- PHL
Nonstop4h 01m
Frontier
Deal found 7/27![Frontier logo]()
$202
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.
Sun 8/3011:55 am
PHL
- SJU
Nonstop4h 02m
Frontier
Thu 9/35:15 pm
SJU
- PHL
1 stop8h 01m
Frontier
Deal found 7/27![Frontier logo]()
$199
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 July 28, 2026.
Search for one-way flight options from Philadelphia to San Juan. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
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 8/157:29 pm
PHL
- SJU
Nonstop3h 55m
Frontier
Deal found 7/23![Frontier logo]()
$96
This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:29 pm
PHL
- SJU
Nonstop3h 55m
Frontier
Deal found 7/26![Frontier logo]()
$100
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 8/210:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Deal found 7/28![Frontier logo]()
$103
This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:59 pm
PHL
- SJU
Nonstop4h 00m
Frontier
Deal found 7/26![Frontier logo]()
$104
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:23 am
PHL
- SJU
Nonstop3h 56m
Frontier
Deal found 7/24![Frontier logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 8/202:50 pm
PHL
- SJU
Nonstop3h 59m
Frontier
Deal found 7/28![Frontier logo]()
$108
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:40 pm
PHL
- SJU
1 stop29h 54m
Frontier
Deal found 7/24![Frontier logo]()
$110
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:23 am
PHL
- SJU
Nonstop3h 56m
Frontier
Deal found 7/23![Frontier logo]()
$111
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 July 28, 2026.
Round-trip from | $199 (Kiwi.com) |
|---|---|
One-way from | $96 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $353 |
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 July 28, 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
Sun 8/30
6:16 am-3:42 pm
1 stop9h 26m
San Juan Luis Munoz Marin Intl
Sat 9/5
1:00 am-12:23 pm
2 stops11h 23m
$278
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Sat 9/5
9:20 am-10:00 pm
2 stops12h 40m
San Juan Luis Munoz Marin Intl
Wed 9/9
6:00 am-5:35 pm
2 stops11h 35m
$328
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Tue 8/18
1:55 pm-9:05 pm
1 stop7h 10m
San Juan Luis Munoz Marin Intl
Fri 8/28
5:00 am-3:25 pm
1 stop10h 25m
$331
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Sun 9/20
4:05 pm-12:35 am
1 stop8h 30m
San Juan Luis Munoz Marin Intl
Wed 9/23
6:00 am-5:35 pm
2 stops11h 35m
$341
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Mon 8/24
6:16 am-3:42 pm
1 stop9h 26m
San Juan Luis Munoz Marin Intl
Tue 9/15
1:00 am-12:23 pm
2 stops11h 23m
$346
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Wed 9/16
11:04 am-11:50 pm
2 stops12h 46m
San Juan Luis Munoz Marin Intl
Sat 9/19
1:00 am-12:23 pm
2 stops11h 23m
$350
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Thu 8/20
12:45 pm-11:05 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Thu 8/27
8:55 pm-9:40 am
1 stop12h 45m
$382
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Tue 10/13
6:10 am-8:38 pm
2 stops14h 28m
San Juan Luis Munoz Marin Intl
Sat 10/17
1:00 am-9:33 am
2 stops8h 33m
$426
Quickest round-trip
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Thu 8/13
12:38 pm-4:30 pm
Nonstop3h 52m
San Juan Luis Munoz Marin Intl
Sat 8/15
3:33 pm-10:29 pm
1 stop6h 56m
$437
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Mon 8/10
12:45 pm-11:05 pm
2 stops10h 20m
San Juan Luis Munoz Marin Intl
Thu 8/13
8:55 pm-9:40 am
1 stop12h 45m
$468
Showing 1-10 of 23 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 $242). Flying from Philadelphia to San Juan in December is currently the most expensive (average of $426). 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 July 28, 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 July 28, 2026.
The most flights from PHL to PR1 are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Philadelphia to San Juan?
Airfare is below average for this route at the moment.
Philadelphia to San Juan flights typically cost between $246 and $383 in August.The cheapest round-trip price found within the last 5 days was $199 on Frontier (Aug 30-Sep 3).
How often are flights from Philadelphia to San Juan delayed?
About 29% of weekly flights between Philadelphia and San Juan have experienced delays in the past year, with the average delay time being 147 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?
Tuesday tends to have the lowest number of delays on this route, whereas Monday 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 25% of flights being delayed.
How far ahead should I book a flight from Philadelphia to San Juan?
Booking 58 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 July 25, 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 July 28, 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.
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Crew
8.6
Boarding
8.1
Food
7.0
Entertainment
7.5
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 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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Complete your trip
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Philadelphia and San Juan flights
Browse other Philadelphia and San Juan flight options. Last updated on July 28, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$143 | Average$365 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$381 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$219 | Average$428 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$260 | Average$344 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$298 | Average$496 | FlexibilityNo cancel fee | On-time71% |