Cheapest one-way flights from Philadelphia to San Juan in January from 70€

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to San Juan (SJU) in January 2026 (see full year).

One-Way flights

12 Jan Frontier Airlines direct
22 Jan Frontier Airlines direct
23 Jan Frontier Airlines direct
25 Jan Frontier Airlines direct
26 Jan Frontier Airlines direct
29 Jan Frontier Airlines direct
11 Jan Frontier Airlines direct
06 Jan Frontier Airlines
07 Jan Frontier Airlines
20 Jan Frontier Airlines

Also check the deals for return flights from Philadelphia to San Juan in January.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

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