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

Return flights

06 Mar - 15 Mar	Avianca
11 Mar - 21 Mar	Avianca
25 Mar - 31 Mar	Avianca
24 Mar - 31 Mar	Avianca
01 Mar - 07 Mar	Avianca
01 Mar - 11 Mar	Avianca
02 Mar - 09 Mar	Avianca
20 Mar - 22 Mar	Avianca
25 Mar - 15 Apr	Avianca
12 Mar - 31 Mar	Avianca
14 Mar - 21 Mar	Avianca
31 Mar - 11 Apr	Copa
28 Mar - 12 Apr	Avianca
28 Mar - 05 Apr	Avianca
28 Mar - 03 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.

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Cheapest return flights from Washington to Lima in March from $370

Return flights