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

Return flights

04 May - 12 May	Norwegian
18 May - 25 May	easyJet
11 May - 19 May	Eurowings
28 May - 08 Jun	KLM
21 May - 24 May	KLM
09 May - 20 May	easyJet
23 May - 30 May	Scandinavian Airlines
01 May - 03 May	Scandinavian Airlines
15 May - 20 May	easyJet
01 May - 17 May	Scandinavian Airlines
26 May - 02 Jun	Scandinavian Airlines
10 May - 17 May	KLM
26 May - 07 Jun	easyJet

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to Keflavik in May from 190€

Return flights