$75+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
May 1 — May 81
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 61 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 April 1, 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 April 1, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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.
Fri 4/104:09 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 4/1411:00 am
SJU
- PHL
1 stop26h 12m
Frontier
Deal found 3/28![Frontier logo]()
$159
This Frontier deal was found by Cheapflights users on 3/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Fri 5/13:23 pm
SJU
- PHL
1 stop9h 31m
Frontier
Deal found 3/28![Frontier logo]()
$160
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 4/248:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Mon 4/271:59 am
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/30![Frontier logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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.
Sat 4/118:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 4/1411:00 am
SJU
- PHL
1 stop26h 12m
Frontier
Deal found 3/28![Frontier logo]()
$162
This Trip.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/298:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Wed 5/66:30 am
SJU
- PHL
Nonstop4h 11m
Frontier
Deal found 3/30![Frontier logo]()
$163
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:39 pm
PHL
- SJU
Nonstop3h 50m
Multiple Airlines
Sat 4/182:09 am
SJU
- PHL
Nonstop4h 03m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$164
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 4/298:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 5/56:00 am
SJU
- PHL
1 stop18h 40m
Frontier
Deal found 3/27![Frontier logo]()
$165
This Frontier deal was found by Cheapflights users on 3/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 5/56:30 am
SJU
- PHL
Nonstop4h 11m
Frontier
Deal found 3/28![Frontier logo]()
$166
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Sun 4/269:00 am
PHL
- SJU
Nonstop3h 50m
Frontier
Thu 4/307:17 pm
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/27![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/189:02 pm
PHL
- SJU
Nonstop3h 52m
Multiple Airlines
Mon 4/207:15 am
SJU
- PHL
1 stop16h 42m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$168
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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 4/165:01 am
PHL
- SJU
1 stop18h 28m
Frontier
Tue 4/211:59 am
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/28![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 3/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:38 pm
PHL
- SJU
1 stop11h 16m
Frontier
Tue 4/281:59 am
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/28![Frontier logo]()
$170
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 April 1, 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 April 1, 2026.
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/2110:00 am
PHL
- SJU
2 stops11h 24m
United Airlines
Sun 4/261:00 am
SJU
- PHL
2 stops13h 10m
United Airlines
Deal found 4/1![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 3/29. 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 4/2712:45 pm
PHL
- SJU
2 stops10h 55m
Southwest
Tue 5/55:35 am
SJU
- PHL
2 stops10h 20m
Southwest
Deal found 3/29![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 3/30. 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 6/1610:40 am
PHL
- SJU
1 stop11h 47m
Delta
Mon 6/2212:54 pm
SJU
- PHL
1 stop9h 51m
Delta
Deal found 3/30![Delta logo]()
$456
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/1810:00 am
PHL
- SJU
2 stops13h 50m
United Airlines
Fri 4/243:56 pm
SJU
- PHL
1 stop9h 03m
United Airlines
Deal found 4/1![United Airlines logo]()
$406
This Southwest deal was found by Cheapflights users on 3/31. 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 5/812:45 pm
PHL
- SJU
2 stops10h 55m
Southwest
Fri 5/1510:00 am
SJU
- PHL
2 stops12h 45m
Southwest
Deal found 3/31![Southwest logo]()
$431
This United Airlines deal was found by Cheapflights users on 3/30. 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 4/2710:33 am
PHL
- SJU
2 stops13h 17m
United Airlines
Sun 5/31:00 am
SJU
- PHL
2 stops8h 54m
United Airlines
Deal found 3/30![United Airlines logo]()
$419
This Southwest deal was found by Cheapflights users on 3/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:35 am
PHL
- SJU
2 stops9h 30m
Southwest
Sun 5/106:25 am
SJU
- PHL
2 stops12h 00m
Southwest
Deal found 3/27![Southwest logo]()
$444
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/1711:36 am
PHL
- SJU
1 stop8h 58m
United Airlines
Thu 4/231:00 am
SJU
- PHL
2 stops8h 58m
United Airlines
Deal found 4/1![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 3/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/82:00 pm
PHL
- SJU
2 stops11h 20m
Southwest
Thu 6/119:50 am
SJU
- PHL
1 stop7h 25m
Southwest
Deal found 3/27![Southwest logo]()
$448
This United Airlines deal was found by Cheapflights users on 3/29. 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 5/210:00 am
PHL
- SJU
1 stop10h 34m
United Airlines
Mon 5/41:00 am
SJU
- PHL
2 stops8h 54m
United Airlines
Deal found 3/29![United Airlines logo]()
$436
This Southwest deal was found by Cheapflights users on 3/30. 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 5/912:25 pm
PHL
- SJU
2 stops11h 15m
Southwest
Mon 5/115:35 am
SJU
- PHL
2 stops10h 15m
Southwest
Deal found 3/30![Southwest logo]()
$478
This Southwest deal was found by Cheapflights users on 3/29. 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 5/2912:45 pm
PHL
- SJU
2 stops11h 10m
Southwest
Tue 6/25:35 am
SJU
- PHL
2 stops12h 15m
Southwest
Deal found 3/29![Southwest logo]()
$478
Last-minute flights from Philadelphia to San JuanDiscover last-minute flight deals from Philadelphia to San Juan. Data last updated April 1, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to San Juan. Data last updated April 1, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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.
Fri 4/104:09 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 4/1411:00 am
SJU
- PHL
1 stop26h 12m
Frontier
Deal found 3/28![Frontier logo]()
$159
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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.
Sat 4/118:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 4/1411:00 am
SJU
- PHL
1 stop26h 12m
Frontier
Deal found 3/28![Frontier logo]()
$162
This CheapOair deal was found by Cheapflights users on 3/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:39 pm
PHL
- SJU
Nonstop3h 50m
Multiple Airlines
Sat 4/182:09 am
SJU
- PHL
Nonstop4h 03m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$164
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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 4/165:01 am
PHL
- SJU
1 stop18h 28m
Frontier
Tue 4/211:59 am
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/28![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 3/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:38 pm
PHL
- SJU
1 stop11h 16m
Frontier
Tue 4/281:59 am
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/28![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/189:02 pm
PHL
- SJU
Nonstop3h 52m
Multiple Airlines
Mon 4/207:15 am
SJU
- PHL
1 stop16h 42m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$168
This Cheapflightsfares deal was found by Cheapflights users on 3/30. 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 4/248:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Mon 4/271:59 am
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/30![Frontier logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Sun 4/269:00 am
PHL
- SJU
Nonstop3h 50m
Frontier
Thu 4/307:17 pm
SJU
- PHL
Nonstop4h 09m
Frontier
Deal found 3/27![Frontier logo]()
$167
This Frontier deal was found by Cheapflights users on 3/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Fri 5/13:23 pm
SJU
- PHL
1 stop9h 31m
Frontier
Deal found 3/28![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 3/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 5/56:30 am
SJU
- PHL
Nonstop4h 11m
Frontier
Deal found 3/28![Frontier logo]()
$166
This Trip.com deal was found by Cheapflights users on 3/30. 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.
Wed 4/298:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Wed 5/66:30 am
SJU
- PHL
Nonstop4h 11m
Frontier
Deal found 3/30![Frontier logo]()
$163
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 4/298:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Tue 5/56:00 am
SJU
- PHL
1 stop18h 40m
Frontier
Deal found 3/27![Frontier logo]()
$165
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 April 1, 2026.
Search for one-way flight options from Philadelphia to San Juan. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
This eDestinos deal was found by Cheapflights users on 3/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Deal found 3/28![Frontier logo]()
$75
This eDestinos deal was found by Cheapflights users on 3/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Deal found 3/27![Frontier logo]()
$78
This Super.com deal was found by Cheapflights users on 3/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Deal found 3/28![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 3/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Deal found 3/28![Frontier logo]()
$80
This eDestinos deal was found by Cheapflights users on 4/1. 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.
Mon 5/48:39 pm
PHL
- SJU
Nonstop3h 50m
Frontier
Deal found 4/1![Frontier logo]()
$82
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:51 pm
PHL
- SJU
1 stop7h 07m
Spirit Airlines
Deal found 3/31![Spirit Airlines logo]()
$85
This eDestinos deal was found by Cheapflights users on 3/30. 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 5/128:07 pm
PHL
- SJU
Nonstop3h 52m
Frontier
Deal found 3/30![Frontier logo]()
$86
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 4/225:45 am
PHL
- SJU
1 stop13h 37m
Spirit Airlines
Deal found 3/31![Spirit Airlines logo]()
$87
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Fri 4/2410:38 pm
PHL
- SJU
1 stop11h 16m
Frontier
Deal found 3/27![Frontier logo]()
$88
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 April 1, 2026.
Round-trip from | $159 (Cheapflightsfares) |
|---|---|
One-way from | $75 (eDestinos) |
Popular in | December |
Cheapest in | October |
Average price | $283 |
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 April 1, 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
Tue 4/21
10:00 am-9:24 pm
2 stops11h 24m
San Juan Luis Munoz Marin Intl
Sun 4/26
1:00 am-2:10 pm
2 stops13h 10m
$316
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Mon 4/27
12:45 pm-11:40 pm
2 stops10h 55m
San Juan Luis Munoz Marin Intl
Tue 5/5
5:35 am-3:55 pm
2 stops10h 20m
$325
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Sat 4/18
10:00 am-11:50 pm
2 stops13h 50m
San Juan Luis Munoz Marin Intl
Fri 4/24
3:56 pm-12:59 am
1 stop9h 03m
$406
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Mon 4/27
10:33 am-11:50 pm
2 stops13h 17m
San Juan Luis Munoz Marin Intl
Sun 5/3
1:00 am-9:54 am
2 stops8h 54m
$419
Quickest round-trip
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Fri 4/17
11:36 am-8:34 pm
1 stop8h 58m
San Juan Luis Munoz Marin Intl
Thu 4/23
1:00 am-9:58 am
2 stops8h 58m
$426
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Fri 5/8
12:45 pm-11:40 pm
2 stops10h 55m
San Juan Luis Munoz Marin Intl
Fri 5/15
10:00 am-10:45 pm
2 stops12h 45m
$431
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Sat 5/2
10:00 am-8:34 pm
1 stop10h 34m
San Juan Luis Munoz Marin Intl
Mon 5/4
1:00 am-9:54 am
2 stops8h 54m
$436
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Wed 5/6
11:35 am-9:05 pm
2 stops9h 30m
San Juan Luis Munoz Marin Intl
Sun 5/10
6:25 am-6:25 pm
2 stops12h 00m
$444
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Mon 6/8
2:00 pm-1:20 am
2 stops11h 20m
San Juan Luis Munoz Marin Intl
Thu 6/11
9:50 am-5:15 pm
1 stop7h 25m
$448
PhiladelphiaSan Juan
PHL - SJU
PHLSJU
Philadelphia
Tue 6/16
10:40 am-10:27 pm
1 stop11h 47m
San Juan Luis Munoz Marin Intl
Mon 6/22
12:54 pm-10:45 pm
1 stop9h 51m
$456
Showing 1-10 of 20 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
How far ahead should I book a flight from Philadelphia to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to San Juan. Price data was last updated on March 13, 2026.
Booking 61 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 month to book a flight from Philadelphia to San Juan?
Currently, March is the cheapest month in which you can book a flight from Philadelphia to San Juan (average of $62). Flying from Philadelphia to San Juan in August is currently the most expensive (average of $138). 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 April 1, 2026.
It’s typically best to fly out from Philadelphia to San Juan in the evening. Doing so could potentially save you 18% on the flight price compared to flying in the afternoon, which is usually more expensive.
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 March 28, 2026.
Travelers seeking maximum savings on their Philadelphia to San Juan flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 April 1, 2026.
The most flights from PHL to PR1 are scheduled on a Wednesday (8 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 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 32% of weekly flights between Philadelphia and San Juan have experienced delays in the past year, with the average delay time being 146 minutes.
What is the most punctual flight time for Philadelphia to San Juan flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night 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 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, Spirit Airlines have had the lowest number of delays on this route, with just 27% of flights being delayed.
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 April 1, 2026.
Read through reviews of airlines operating flights from Philadelphia to San Juan, such as Delta,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.9
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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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Alternative routes for Philadelphia to San Juan
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Complete your trip
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Search flights from Philadelphia to San Juan by cabin class
Find flights from Philadelphia to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and San Juan flights
Browse other Philadelphia and San Juan flight options. Last updated on April 1, 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 April 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Philadelphia to San Juan
Discover the top 7 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 April 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$167 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$128 | Average$272 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$139 | Average$323 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$168 | Average$356 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$436 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$215 | Average$385 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$265 | Average$485 | FlexibilityNo cancel fee | On-time71% |