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

Return flights

31 Dec - 07 Jan	Icelandair	direct
31 Dec - 05 Jan	Finnair	direct
27 Dec - 03 Jan	airBaltic
27 Dec - 31 Dec	Finnair	direct
27 Dec - 29 Dec	Finnair	direct
26 Dec - 01 Jan	airBaltic
25 Dec - 28 Dec	KLM
27 Dec - 30 Dec	Finnair	direct

Also check the deals for one-way flights from Helsinki to Keflavik 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Helsinki to Keflavik in December from 284€

Return flights