AirHint found the following cheapest return flights from Denver (DEN) to Athens (ATH) in January 2026 (see full year).
Return flights
| 23 Jan - 27 Jan | Lufthansa | ||
| 24 Jan - 27 Jan | Turkish Airlines | ||
| 15 Jan - 21 Jan | Turkish Airlines | ||
| 16 Jan - 23 Jan | Turkish Airlines | ||
| 22 Jan - 01 Feb | Delta | ||
| 15 Jan - 22 Jan | Turkish Airlines |
Also check the deals for one-way flights from Denver to Athens in January.
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