Cheapest one-way flights from Washington to Buenos Aires in March from $274

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

One-Way flights

20 Mar Delta
08 Mar jetBlue
11 Mar LATAM Airlines Group
17 Mar LATAM Airlines Group
23 Mar LATAM Airlines Group
26 Mar LATAM Airlines Group
21 Mar LATAM Airlines Group
14 Mar LATAM Airlines Group
27 Mar Air Canada
02 Mar LATAM Airlines Group

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

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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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