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

Return flights

09 May - 19 May	Lufthansa
12 May - 19 May	Austrian Airlines
12 May - 19 May	Finnair	direct
09 May - 19 May	Finnair	direct
26 May - 05 Jun	Finnair	direct
30 May - 10 Jun	Finnair
31 May - 07 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Helsinki to Keflavik in May from 189€

Return flights