AirHint found the following cheapest one-way flights from Washington (DCA) to Buenos Aires (EZE) in December 2025 (see full year).
One-Way flights
| 28 Dec | United | ||
| 01 Dec | United | ||
| 29 Dec | United | ||
| 10 Dec | LATAM Airlines Group | ||
| 25 Dec | LATAM Airlines Group | ||
| 27 Dec | LATAM Airlines Group | ||
| 16 Dec | jetBlue | ||
| 26 Dec | LATAM Airlines Group | ||
| 20 Dec | LATAM Airlines Group |
Also check the deals for return 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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