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

Return flights

07 Dec - 11 Dec	Wizz Air UK
01 Dec - 06 Dec	Wizz Air UK
17 Dec - 13 Jan	Wizz Air
01 Dec - 08 Dec	Wizz Air UK
03 Dec - 09 Dec	Wizz Air UK
07 Dec - 14 Dec	Wizz Air UK
06 Dec - 13 Dec	Wizz Air UK
12 Dec - 14 Dec	Wizz Air UK
02 Dec - 07 Dec	Air France
06 Dec - 09 Dec	KLM
03 Dec - 08 Dec	KLM
16 Dec - 13 Jan	Air France
16 Dec - 11 Jan	Air France
18 Dec - 13 Jan	Air France
28 Dec - 05 Jan	airBaltic
24 Dec - 06 Jan	KLM
27 Dec - 04 Jan	Scandinavian Airlines
27 Dec - 03 Jan	Aegean Airlines
14 Dec - 04 Jan	Aegean Airlines
21 Dec - 09 Jan	Ryanair

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

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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Cheapest return flights from Athens to Helsinki in December from 145€

Return flights