Cheapest return flights from Washington to Buenos Aires in December from $628

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 United
08 Dec - 15 Dec American Airlines
11 Dec - 17 Jan LATAM Airlines Group
28 Dec - 30 Dec LATAM Airlines Group
04 Dec - 28 Dec United
17 Dec - 30 Dec LATAM Airlines Group
19 Dec - 26 Dec LATAM Airlines Group
19 Dec - 27 Dec LATAM Airlines Group
29 Dec - 06 Jan LATAM Airlines Group
29 Dec - 07 Jan Delta
24 Dec - 05 Jan LATAM Airlines Group
22 Dec - 10 Jan LATAM Airlines Group
28 Dec - 02 Jan LATAM Airlines Group
21 Dec - 08 Jan LATAM Airlines Group
23 Dec - 03 Jan LATAM Airlines Group
19 Dec - 03 Jan LATAM Airlines Group

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

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