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

Return flights

19 Jan - 31 Jan	Copa
19 Jan - 28 Jan	Copa
19 Jan - 29 Jan	Copa
20 Jan - 27 Jan	Copa
20 Jan - 28 Jan	Copa
20 Jan - 29 Jan	Copa
20 Jan - 30 Jan	Copa
21 Jan - 29 Jan	Copa
21 Jan - 30 Jan	Copa
22 Jan - 30 Jan	Copa
24 Jan - 03 Feb	Copa
25 Jan - 04 Feb	Copa
26 Jan - 03 Feb	Copa
26 Jan - 04 Feb	Copa
26 Jan - 05 Feb	Copa
27 Jan - 04 Feb	Copa
27 Jan - 05 Feb	Copa
27 Jan - 06 Feb	Copa
28 Jan - 04 Feb	Copa
28 Jan - 05 Feb	Copa

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 274€

Return flights