Philadelphia to San Juan flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are low right now
$121 is $34 (22%) below the usual $155 for Philadelphia → San Juan.
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when Philadelphia → San Juan drops below your price.Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | No fares found yet |
| October 2026 | $131 |
| November 2026 | $124 |
| December 2026 | $121 (cheapest month) |
| January 2027 | $155 |
| February 2027 | $249 |
| March 2027 | $334 |
| April 2027 | No fares found yet |
| May 2027 | $251 |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 12 – 19 7 nights · leave Sat$121 −22% vs usual$121 −22% vs usual Book
Frontier Airlines Nonstop · 3h 46m -
Nov 24 – Dec 15 21 nights · leave Tue$124 −20% vs usual$124 −20% vs usual Book
Frontier Airlines Nonstop · 3h 48m
-
Oct 10 – 24 14 nights · leave Sat$131 −15% vs usual$131 −15% vs usual Book
Frontier Airlines Nonstop · 3h 56m
-
Oct 17 – 24 7 nights · leave Sat$134 −14% vs usual$134 −14% vs usual Book
Frontier Airlines Nonstop · 3h 55m
-
Nov 20 – Dec 2 12 nights · leave Fri$145 −6% vs usual$145 −6% vs usual Book
Frontier Airlines 1 stop · 3h 48m
-
Dec 11 – 18 7 nights · leave Fri$149$149 Book
Frontier Airlines Nonstop · 3h 46m
-
Dec 21 – 26 5 nights · leave Mon$174 +12% vs usual$174 +12% vs usual Book
Frontier Airlines 1 stop · 6h 05m
-
Oct 16 – 19 3 nights · leave Fri$176 +14% vs usual$176 +14% vs usual Book
Frontier Airlines Nonstop · 3h 52m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Plan the rest of your trip
San Juan · Dec 12 – 19Travel insurance · EKTA Airport transfer · Kiwitaxi
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Good to know
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Philadelphia to San Juan: questions
How much is a flight from Philadelphia to San Juan?
The cheapest round trip we have found right now is $121, leaving December 12 and returning December 19. The usual price on this route is about $155, so this fare is 22% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from Philadelphia to San Juan?
December 2026, with round trips from $121. The most expensive month in our data is March (from $334). Based on the 7 months ahead we have prices for.
Are there nonstop flights from Philadelphia to San Juan?
Yes. Nonstop from $121 round trip. 63% of the 16 date combinations we track are nonstop.
About this route
We track round-trip economy fares from Philadelphia (United States) to San Juan (Puerto Rico) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $121, departing December 12 and returning December 19 on a nonstop flight, about 22% below the usual $155. Right now we're following 16 upcoming date combinations on this route. The cheapest month to fly in our data is December, from $121. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.