AirHint found the following cheapest one-way flights from Athens (ATH) to Helsinki (HEL) in September 2026 (see full year).
One-Way flights
| 01 Sep | Aegean Airlines | direct | |
| 25 Sep | Aegean Airlines | direct | |
| 05 Sep | Norwegian Air Sweden AOC | ||
| 16 Sep | SKY express | ||
| 05 Sep | Norwegian Air Sweden AOC | direct |
Also check the deals for return flights from Athens to Helsinki in September.
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