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

Return flights

09 Dec - 16 Dec	Scandinavian Airlines
03 Dec - 10 Dec	Scandinavian Airlines
01 Dec - 10 Dec	KLM
10 Dec - 24 Dec	British Airways
13 Dec - 25 Dec	Delta
12 Dec - 24 Dec	KLM
14 Dec - 06 Jan	jetBlue
13 Dec - 06 Jan	jetBlue
08 Dec - 29 Dec	Scandinavian Airlines
28 Dec - 17 Jan	Air France
03 Dec - 27 Dec	Air France
30 Dec - 04 Jan	jetBlue
29 Dec - 12 Jan	British Airways
29 Dec - 10 Jan	British Airways
28 Dec - 05 Jan	Air France
20 Dec - 11 Jan	Air France
20 Dec - 06 Jan	Air France
19 Dec - 04 Jan	jetBlue
09 Dec - 13 Dec	British Airways
20 Dec - 25 Dec	British Airways

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

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 Athens in December from 595€

Return flights