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

Return flights

02 Dec - 11 Dec	LATAM Airlines Group
10 Dec - 26 Dec	Delta
09 Dec - 21 Dec	Delta
10 Dec - 25 Dec	Delta
24 Dec - 28 Jan	Delta
24 Dec - 31 Dec	Frontier Airlines
22 Dec - 25 Dec	LATAM Airlines Group
21 Dec - 02 Jan	Frontier Airlines
15 Dec - 04 Jan	Frontier Airlines
29 Dec - 05 Jan	Frontier Airlines
22 Dec - 01 Jan	Frontier Airlines
21 Dec - 01 Jan	Frontier Airlines
28 Dec - 05 Jan	LATAM Airlines Group

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 495€

Return flights