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

Return flights

05 Mar - 06 Mar	Scandinavian Airlines
28 Mar - 05 Apr	Finnair
09 Mar - 16 Mar	Finnair
28 Mar - 04 Apr	Finnair
28 Mar - 05 Apr	Finnair	direct
09 Mar - 16 Mar	Finnair	direct
05 Mar - 06 Mar	Finnair	direct
27 Mar - 29 Mar	Scandinavian Airlines
21 Mar - 04 Apr	Finnair
13 Mar - 15 Mar	Finnair
28 Mar - 04 Apr	Finnair	direct
13 Mar - 14 Mar	Finnair
21 Mar - 04 Apr	Icelandair	direct
27 Mar - 29 Mar	Icelandair	direct
13 Mar - 14 Mar	Finnair	direct

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

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki

Cheapest return flights from Keflavik to Helsinki in March from $248

Return flights