AirHint found the following cheapest return flights from Denver (DEN) to Athens (ATH) in April 2026 (see full year).
Return flights
| 09 Apr - 16 Apr | Turkish Airlines | ||
| 14 Apr - 28 Apr | Turkish Airlines | ||
| 04 Apr - 11 Apr | Turkish Airlines | ||
| 21 Apr - 16 May | Turkish Airlines | ||
| 16 Apr - 23 Apr | United | ||
| 17 Apr - 01 May | Lufthansa |
Also check the deals for one-way flights from Denver to Athens in April.
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