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

Return flights

05 Dec - 19 Dec	British Airways
04 Dec - 10 Dec	Scandinavian Airlines
26 Dec - 09 Jan	British Airways
02 Dec - 16 Dec	British Airways
19 Dec - 31 Dec	Delta
26 Dec - 10 Jan	British Airways
23 Dec - 06 Jan	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 647€

Return flights