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

Return flights

05 Aug - 19 Aug	ITA Airways
19 Aug - 30 Sep	ITA Airways
19 Aug - 29 Sep	ITA Airways
18 Aug - 29 Sep	ITA Airways
18 Aug - 30 Sep	ITA Airways
18 Aug - 10 Sep	ITA Airways
03 Aug - 18 Aug	ITA Airways
20 Aug - 10 Sep	Alaska Airlines
18 Aug - 28 Sep	ITA Airways
26 Aug - 09 Sep	Condor
20 Aug - 27 Aug	Turkish Airlines
26 Aug - 02 Sep	Turkish Airlines
16 Aug - 30 Aug	Frontier Airlines
26 Aug - 06 Sep	Turkish Airlines
22 Aug - 29 Aug	Turkish Airlines
07 Aug - 19 Aug	Alaska Airlines
22 Aug - 31 Aug	Lufthansa
07 Aug - 20 Aug	Condor
23 Aug - 31 Aug	Frontier Airlines
21 Aug - 31 Aug	Condor

Also check the deals for one-way flights from San Francisco to Athens in August.

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 August from 480€

Return flights