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

Return flights

02 May - 07 May	Lufthansa
03 May - 07 May	airBaltic
01 May - 07 May	Icelandair	direct
02 May - 07 May	Icelandair	direct
01 May - 07 May	airBaltic
03 May - 07 May	Icelandair	direct
03 May - 10 May	Icelandair	direct
01 May - 03 May	airBaltic
01 May - 06 May	airBaltic
12 May - 19 May	Norwegian
12 May - 18 Jun	Scandinavian Airlines
30 May - 10 Jun	Icelandair	direct
12 May - 18 Jun	Finnair	direct

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

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 May from 181€

Return flights