Cheapest return flights from Philadelphia to San Juan in January from 140€

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

Return flights

23 Jan - 31 Jan Frontier Airlines direct
23 Jan - 30 Jan Frontier Airlines direct
23 Jan - 27 Jan Frontier Airlines direct
29 Jan - 02 Feb Frontier Airlines direct
25 Jan - 01 Feb Frontier Airlines direct
29 Jan - 03 Feb Frontier Airlines direct
27 Jan - 02 Feb Frontier Airlines direct
22 Jan - 25 Jan Frontier Airlines direct
23 Jan - 25 Jan Frontier Airlines direct
09 Jan - 12 Jan Frontier Airlines direct
10 Jan - 13 Jan Frontier Airlines direct
06 Jan - 10 Jan Frontier Airlines
08 Jan - 14 Jan Spirit Airlines direct
08 Jan - 16 Jan Spirit Airlines direct
23 Jan - 07 Feb Spirit Airlines direct
23 Jan - 08 Feb Spirit Airlines direct
23 Jan - 11 Feb Spirit Airlines direct
23 Jan - 12 Feb Spirit Airlines direct
23 Jan - 04 Feb Spirit Airlines direct
23 Jan - 05 Feb Spirit Airlines direct

Also check the deals for one-way 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.

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