AirHint found the following cheapest one-way flights from Washington (DCA) to Lima (LIM) in December 2025 (see full year).

One-Way flights

31 Dec	LATAM Airlines Group
02 Dec	LATAM Airlines Group
04 Dec	LATAM Airlines Group
05 Dec	LATAM Airlines Group
06 Dec	LATAM Airlines Group
08 Dec	LATAM Airlines Group
07 Dec	LATAM Airlines Group
28 Dec	LATAM Airlines Group
29 Dec	LATAM Airlines Group
30 Dec	LATAM Airlines Group

Also check the deals for return flights from Washington to Lima in December.

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 one-way flights from Washington to Lima in December from 146€

One-Way flights