Cheapest one-way flights from Washington to Buenos Aires in May from $271

AirHint found the following cheapest one-way flights from Washington (IAD) to Buenos Aires (EZE) in May 2026 (see full year).

Powered by

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.