Cheapest one-way flights from Washington to Buenos Aires in April from $261

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

One-Way flights

21 Apr Copa
27 Apr Copa
09 Apr Copa
10 Apr Copa
14 Apr Copa
07 Apr Copa
08 Apr Copa
13 Apr Copa
16 Apr Copa
17 Apr Copa

Also check the deals for return flights from Washington to Buenos Aires in April.

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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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