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

Return flights

20 Mar - 28 Mar	Copa
05 Mar - 13 Mar	Copa
02 Mar - 09 Mar	Copa
02 Mar - 10 Mar	Copa
02 Mar - 11 Mar	Copa
02 Mar - 12 Mar	Copa
03 Mar - 10 Mar	Copa
03 Mar - 11 Mar	Copa
03 Mar - 12 Mar	Copa
03 Mar - 13 Mar	Copa
25 Mar - 12 Apr	Avianca
24 Mar - 30 Apr	Copa
23 Mar - 30 Apr	Copa
24 Mar - 12 Apr	Copa
27 Mar - 12 Apr	Avianca
27 Mar - 29 Apr	Avianca
27 Mar - 30 Apr	Avianca
25 Mar - 30 Apr	Avianca
30 Mar - 30 Apr	Avianca
31 Mar - 30 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 278€

Return flights