Cheapest return flights from Washington to Buenos Aires in May from $1121

Best time to book flights for Washington (DCA) to Buenos Aires (AEP) flights at AirHint

AirHint found the following cheapest return flights from Washington (DCA) to Buenos Aires (AEP) in May 2025 (see full year).

Return flights

16 May - 19 May LATAM Airlines Group
30 May - 15 Jun LATAM Airlines Group

Also check the deals for one-way flights from Washington to Buenos Aires in May.

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.

Book a cheap hotel in Buenos Aires

Cheap car rent in Buenos Aires