Cheapest return flights from Athens to Helsinki in September from $204

Best time to book flights for Athens (ATH) to Helsinki (HEL) flights at AirHint

AirHint found the following cheapest return flights from Athens (ATH) to Helsinki (HEL) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep Aegean Airlines
02 Sep - 09 Sep Norwegian Air Sweden AOC
02 Sep - 23 Sep Norwegian Air Sweden AOC direct
02 Sep - 09 Sep Norwegian Air Sweden AOC direct
16 Sep - 07 Oct Norwegian Air Sweden AOC direct
09 Sep - 23 Sep Norwegian Air Sweden AOC direct
13 Sep - 23 Sep Norwegian Air Sweden AOC direct
30 Sep - 21 Oct Norwegian Air Sweden AOC direct
16 Sep - 23 Sep Norwegian Air Sweden AOC direct
20 Sep - 07 Oct Norwegian Air Sweden AOC direct
09 Sep - 30 Sep Norwegian Air Sweden AOC direct
27 Sep - 30 Sep Scandinavian Airlines
13 Sep - 30 Sep Norwegian Air Sweden AOC direct
30 Sep - 07 Oct Norwegian Air Sweden AOC direct
27 Sep - 07 Oct Norwegian Air Sweden AOC
27 Sep - 07 Oct Norwegian Air Sweden AOC direct
28 Sep - 01 Oct Aegean Airlines
30 Sep - 14 Oct Norwegian Air Sweden AOC direct
27 Sep - 14 Oct Norwegian Air Sweden AOC
27 Sep - 14 Oct Norwegian Air Sweden AOC direct

Also check the deals for one-way flights from Athens to Helsinki in September.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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