AirHint found the following cheapest return flights from San Francisco (SFO) to Athens (ATH) in September 2026 (see full year).
Return flights
| 09 Sep - 19 Sep | Scandinavian Airlines | ||
| 01 Sep - 10 Sep | Scandinavian Airlines | ||
| 24 Sep - 01 Oct | Alaska Airlines |
Also check the deals for one-way flights from San Francisco to Athens in September.
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