Cheapest return flights from Philadelphia (PHL) to San Juan (SJU), December

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
02 Dec 06 Dec Frontier Airlines
07 Dec 11 Dec Frontier Airlines
Direct Flight
03 Dec 06 Dec Frontier Airlines
05 Dec 10 Dec Frontier Airlines
14 Dec 21 Dec Frontier Airlines
Direct Flight
05 Dec 10 Dec Frontier Airlines
Direct Flight
02 Dec 06 Dec Frontier Airlines
Direct Flight
31 Dec 14 Jan United
12 Dec 21 Dec Frontier Airlines
03 Dec 06 Dec Frontier Airlines
Direct Flight
04 Dec 04 Dec Frontier Airlines
Direct Flight
31 Dec 14 Jan Frontier Airlines
Direct Flight
30 Dec 12 Jan Frontier Airlines
Direct Flight
31 Dec 06 Jan United
28 Dec 01 Jan Frontier Airlines
Direct Flight
14 Dec 08 Jan American Airlines
31 Dec 06 Jan Frontier Airlines
Direct Flight
20 Dec 01 Jan Frontier Airlines
Direct Flight
24 Dec 10 Jan Frontier Airlines
Direct Flight
29 Dec 04 Jan Frontier Airlines
Powered by

deals for one-way flights from Philadelphia to San Juan in December.

Book a cheap hotel in San Juan

Cheap car rent in Luis Munoz Marin Intl

Updated Aug 25, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Feel free to contact us with any feedback or request another flight research.