AirHint found the following cheapest return flights from Washington (IAD) to Lima (LIM) in January 2026 (see full year).

Return flights

19 Jan - 28 Jan	Copa
23 Jan - 25 Jan	Copa
21 Jan - 29 Jan	Copa
20 Jan - 24 Jan	Copa
22 Jan - 25 Jan	Copa
23 Jan - 08 Feb	Copa
25 Jan - 02 Feb	Copa
29 Jan - 01 Feb	Copa
19 Jan - 12 Feb	Copa
22 Jan - 19 Feb	Copa
19 Jan - 03 Feb	Avianca
02 Jan - 28 Feb	LATAM Airlines Group
02 Jan - 17 Jan	LATAM Airlines Group
05 Jan - 25 Jan	LATAM Airlines Group
16 Jan - 03 Feb	Avianca
15 Jan - 20 Jan	Avianca
07 Jan - 16 Jan	Avianca
03 Jan - 15 Jan	United

Also check the deals for one-way flights from Washington to Lima in January.

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 Washington to Lima in January from 316€

Return flights