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

Return flights

13 Mar - 21 Mar	Norwegian Air Sweden AOC
15 Mar - 21 Mar	Norwegian Air Sweden AOC
30 Mar - 02 Apr	Finnair	direct
08 Mar - 14 Mar	Ryanair
05 Mar - 14 Mar	Finnair	direct
31 Mar - 11 Apr	Finnair	direct
15 Mar - 23 Mar	Icelandair	direct
06 Mar - 14 Mar	Icelandair	direct
08 Mar - 14 Mar	Icelandair	direct
08 Mar - 16 Mar	Icelandair	direct
13 Mar - 16 Mar	Icelandair	direct
13 Mar - 21 Mar	Icelandair	direct

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 $294

Return flights