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

Return flights

01 Dec - 08 Dec	Finnair	direct
03 Dec - 12 Dec	Icelandair	direct
04 Dec - 05 Dec	Finnair	direct
17 Dec - 22 Dec	Scandinavian Airlines
22 Dec - 26 Dec	Finnair
22 Dec - 26 Dec	Icelandair	direct
25 Dec - 28 Dec	Icelandair

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 282€

Return flights