AirHint found the following cheapest return flights from Philadelphia (PHL) to Lima (LIM) in December 2025 (see full year).

Return flights

08 Dec - 15 Dec	Spirit Airlines
12 Dec - 15 Dec	Frontier Airlines
08 Dec - 13 Dec	Spirit Airlines
15 Dec - 15 Jan	Spirit Airlines
21 Dec - 05 Jan	Copa
13 Dec - 10 Jan	Spirit Airlines
24 Dec - 10 Jan	Spirit Airlines
26 Dec - 04 Jan	Sun Country Airlines
22 Dec - 03 Jan	Sun Country Airlines

Also check the deals for one-way flights from Philadelphia to Lima in December.

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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Cheapest return flights from Philadelphia to Lima in December from $545

Return flights