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

Return flights

03 Dec - 17 Dec	Lufthansa
15 Dec - 22 Dec	Lufthansa
06 Dec - 20 Dec	Air France
06 Dec - 27 Dec	British Airways
02 Dec - 09 Dec	Turkish Airlines
04 Dec - 11 Dec	Turkish Airlines
08 Dec - 15 Dec	Turkish Airlines
06 Dec - 13 Dec	Turkish Airlines
13 Dec - 05 Jan	jetBlue
10 Dec - 17 Dec	Turkish Airlines
27 Dec - 06 Jan	ITA Airways
21 Dec - 10 Jan	Frontier Airlines
31 Dec - 07 Jan	Turkish Airlines
16 Dec - 23 Dec	Turkish Airlines
24 Dec - 01 Jan	Virgin Atlantic
13 Dec - 03 Jan	Alaska Airlines
17 Dec - 04 Jan	Alaska Airlines
21 Dec - 05 Jan	Frontier Airlines
20 Dec - 05 Jan	Sun Country Airlines
14 Dec - 03 Jan	Hawaiian Airlines

Also check the deals for one-way flights from San Francisco 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 San Francisco to Athens in December from 422€

Return flights