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

Return flights

02 Nov - 08 Nov	United
07 Nov - 09 Nov	LATAM Airlines Group
26 Nov - 02 Dec	LATAM Airlines Group
03 Nov - 11 Nov	United
22 Nov - 26 Nov	LATAM Airlines Group
22 Nov - 30 Nov	LATAM Airlines Group
21 Nov - 26 Nov	LATAM Airlines Group
21 Nov - 30 Nov	Air Canada
26 Nov - 30 Nov	LATAM Airlines Group

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

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 return flights from Washington to Buenos Aires in November from $639

Return flights