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

Return flights

30 Dec - 13 Jan	SWISS
30 Dec - 20 Jan	SWISS
31 Dec - 11 Jan	SWISS
30 Dec - 11 Jan	SWISS
31 Dec - 10 Jan	British Airways
25 Dec - 28 Jan	Scandinavian Airlines
29 Dec - 09 Jan	Austrian Airlines
24 Dec - 15 Jan	SWISS
31 Dec - 07 Jan	Scandinavian Airlines
29 Dec - 12 Jan	SWISS
24 Dec - 29 Dec	SWISS
26 Dec - 29 Dec	Austrian Airlines
24 Dec - 27 Dec	Lufthansa
26 Dec - 28 Dec	Austrian Airlines
25 Dec - 30 Dec	Scandinavian Airlines
23 Dec - 25 Dec	SWISS
24 Dec - 31 Dec	SWISS
25 Dec - 30 Dec	Aegean Airlines	direct
25 Dec - 29 Dec	SWISS
22 Dec - 29 Dec	SWISS

Also check the deals for one-way flights from Newark 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 Newark to Athens in December from $503

Return flights