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

Return flights

08 Dec - 12 Dec	Ryanair
10 Dec - 13 Dec	Ryanair
10 Dec - 14 Dec	Ryanair
01 Dec - 10 Dec	Ryanair
03 Dec - 06 Dec	Ryanair
01 Dec - 07 Dec	Ryanair
05 Dec - 07 Dec	Ryanair
26 Dec - 31 Dec	airBaltic
01 Dec - 05 Dec	airBaltic
03 Dec - 10 Dec	airBaltic
24 Dec - 05 Jan	airBaltic
26 Dec - 02 Jan	airBaltic
24 Dec - 04 Jan	airBaltic
24 Dec - 02 Jan	airBaltic
29 Dec - 06 Jan	KLM
25 Dec - 01 Jan	airBaltic
30 Dec - 06 Jan	KLM
19 Dec - 01 Jan	airBaltic
25 Dec - 04 Jan	airBaltic
19 Dec - 04 Jan	airBaltic

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Helsinki in December from $165

Return flights