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

Return flights

11 Mar - 19 Mar	Copa
09 Mar - 19 Mar	Copa
16 Mar - 19 Mar	Copa
22 Mar - 29 Mar	Copa
17 Mar - 27 Mar	Copa
17 Mar - 24 Mar	Copa
16 Mar - 20 Mar	Avianca
25 Mar - 29 Mar	Copa
20 Mar - 30 Mar	Avianca
16 Mar - 21 Mar	Avianca
01 Mar - 01 Apr	LATAM Airlines Group
10 Mar - 05 Apr	Copa
25 Mar - 01 Apr	Copa
26 Mar - 06 Apr	Frontier Airlines
26 Mar - 02 Apr	Avianca
28 Mar - 08 Apr	LATAM Airlines Group
28 Mar - 07 Apr	LATAM Airlines Group
28 Mar - 05 Apr	Frontier Airlines
28 Mar - 06 Apr	LATAM Airlines Group
28 Mar - 01 Apr	Avianca

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

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.

Book a cheap hotel in Lima

Cheap car rent in Lima

Cheapest return flights from Washington to Lima in March from 273€

Return flights