Cheapest return flights from Washington to Lima in September from $380

Best time to book flights for Washington (IAD) to Lima (LIM) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Lima (LIM) in September 2025 (see full year).

Return flights

01 Sep - 30 Sep Avianca
18 Sep - 25 Sep Avianca
05 Sep - 12 Sep Avianca
10 Sep - 08 Oct Copa
19 Sep - 28 Sep Avianca

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

Skyscanner

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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