AirHint found the following cheapest return flights from Seattle (SEA) to Athens (ATH) in January 2026 (see full year).
Return flights
| 26 Jan - 09 Feb | SWISS | ||
| 22 Jan - 04 Feb | SWISS | ||
| 16 Jan - 30 Jan | Lufthansa | ||
| 08 Jan - 11 Jan | Air France |
Also check the deals for one-way flights from Seattle to Athens in January.
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