Cheapest return flights from Helsinki to Keflavik in September from $313

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

Return flights

03 Sep - 07 Sep Finnair
23 Sep - 28 Sep Finnair direct
01 Sep - 04 Sep Finnair direct
16 Sep - 25 Sep Finnair direct
02 Sep - 04 Sep Finnair direct
17 Sep - 20 Sep Finnair direct
16 Sep - 20 Sep Finnair direct
03 Sep - 07 Sep Finnair direct
26 Sep - 09 Oct Icelandair direct
23 Sep - 27 Sep Finnair direct
21 Sep - 25 Sep Finnair

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

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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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