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

Return flights

01 Dec - 06 Dec	Copa
25 Dec - 31 Dec	Avianca
29 Dec - 14 Jan	Delta
28 Dec - 13 Jan	Delta
14 Dec - 11 Jan	American Airlines
19 Dec - 28 Dec	Avianca
26 Dec - 09 Jan	LATAM Airlines Group
27 Dec - 02 Jan	Arajet
25 Dec - 03 Jan	Avianca
19 Dec - 05 Jan	Frontier Airlines
22 Dec - 31 Dec	Avianca
18 Dec - 04 Jan	Avianca

Also check the deals for one-way flights from Chicago 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 Chicago to Lima in December from $532

Return flights