AirHint found the following cheapest one-way flights from Houston (IAH) to Athens (ATH) in December 2025 (see full year).
One-Way flights
| 03 Dec | Frontier Airlines | ||
| 12 Dec | Frontier Airlines | ||
| 13 Dec | Spirit Airlines | ||
| 20 Dec | Frontier Airlines |
Also check the deals for return flights from Houston to Athens in December.
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