Cheapest return flights from Philadelphia to San Juan in January from $109

Best time to book flights for Philadelphia (PHL) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest return flights from Philadelphia (PHL) to San Juan (SJU) in January 2025 (see full year).

Return flights

13 Jan - 23 Jan Frontier Airlines
25 Jan - 01 Feb Frontier Airlines
14 Jan - 16 Jan Frontier Airlines
13 Jan - 16 Jan Frontier Airlines
20 Jan - 23 Jan Frontier Airlines
27 Jan - 29 Jan Frontier Airlines
21 Jan - 29 Jan Frontier Airlines
21 Jan - 28 Jan Frontier Airlines
21 Jan - 25 Jan Frontier Airlines
20 Jan - 28 Jan Frontier Airlines
18 Jan - 25 Jan Frontier Airlines
27 Jan - 01 Feb Frontier Airlines
28 Jan - 04 Feb Frontier Airlines
13 Jan - 04 Feb Frontier Airlines
27 Jan - 04 Feb Frontier Airlines
30 Jan - 01 Feb Frontier Airlines
27 Jan - 03 Feb Frontier Airlines
30 Jan - 03 Feb Frontier Airlines
28 Jan - 03 Feb Frontier Airlines
26 Jan - 04 Feb Frontier Airlines

Also check the deals for one-way flights from Philadelphia to San Juan in January.

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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.

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