Cheapest return flights from Washington to Buenos Aires in December from $704

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

Return flights

09 Dec - 19 Dec LATAM Airlines Group
05 Dec - 21 Dec LATAM Airlines Group
12 Dec - 19 Dec LATAM Airlines Group
12 Dec - 30 Dec LATAM Airlines Group
11 Dec - 25 Dec LATAM Airlines Group
28 Dec - 13 Jan LATAM Airlines Group
12 Dec - 31 Dec American Airlines
23 Dec - 30 Dec LATAM Airlines Group
12 Dec - 03 Jan LATAM Airlines Group
25 Dec - 30 Dec LATAM Airlines Group
27 Dec - 13 Jan LATAM Airlines Group
26 Dec - 03 Jan LATAM Airlines Group
18 Dec - 31 Jan LATAM Airlines Group
30 Dec - 04 Jan Air Canada
27 Dec - 10 Jan Air Canada
19 Dec - 27 Dec LATAM Airlines Group
20 Dec - 07 Jan LATAM Airlines Group
28 Dec - 04 Jan LATAM Airlines Group
26 Dec - 04 Jan LATAM Airlines Group

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

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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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