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

Return flights

02 Dec - 16 Dec	British Airways
23 Dec - 30 Dec	jetBlue
04 Dec - 10 Dec	Delta
29 Dec - 06 Jan	Air Canada
23 Dec - 31 Dec	KLM
24 Dec - 31 Dec	Virgin Atlantic
28 Dec - 05 Jan	Air Canada
25 Dec - 01 Jan	Air Canada
22 Dec - 30 Dec	Air Canada
25 Dec - 02 Jan	Air Canada
05 Dec - 19 Dec	British Airways
24 Dec - 01 Jan	Virgin Atlantic
22 Dec - 29 Dec	Air Canada
21 Dec - 29 Dec	Air Canada
27 Dec - 04 Jan	Virgin Atlantic
26 Dec - 03 Jan	Air Canada
21 Dec - 28 Dec	Air Canada
26 Dec - 02 Jan	Air Canada
18 Dec - 04 Jan	Emirates

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 528€

Return flights