AirHint found the following cheapest return flights from Helsinki (HEL) to Keflavik (KEF) in March 2026 (see full year).

Return flights

14 Mar - 17 Mar	airBaltic
04 Mar - 07 Mar	Ryanair
06 Mar - 10 Mar	Scandinavian Airlines
05 Mar - 10 Mar	Scandinavian Airlines
18 Mar - 25 Mar	Finnair	direct
04 Mar - 07 Mar	Finnair	direct
01 Mar - 06 Mar	Finnair	direct
02 Mar - 08 Mar	Finnair	direct
19 Mar - 26 Mar	Finnair	direct
05 Mar - 10 Mar	Finnair	direct
28 Mar - 06 Apr	Finnair

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

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 Helsinki to Keflavik in March from 214€

Return flights