AirHint found the following cheapest return flights from Hamburg (HAM) to Keflavik (KEF) in October 2025 (see full year).

Return flights

01 Oct - 06 Oct	ITA Airways
07 Oct - 10 Oct	easyJet
31 Oct - 07 Nov	easyJet
02 Oct - 07 Oct	Scandinavian Airlines
09 Oct - 14 Oct	Scandinavian Airlines
02 Oct - 08 Oct	Scandinavian Airlines
07 Oct - 11 Oct	Scandinavian Airlines
14 Oct - 25 Oct	Scandinavian Airlines
12 Oct - 17 Oct	LOT
04 Oct - 11 Oct	Wizz Air
07 Oct - 16 Oct	easyJet

Also check the deals for one-way flights from Hamburg to Keflavik in October.

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 Hamburg to Keflavik in October from $217

Return flights