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

Return flights

19 May - 26 May	easyJet
04 May - 07 May	easyJet
04 May - 08 May	easyJet
15 May - 20 May	easyJet
06 May - 18 May	easyJet
03 May - 07 May	easyJet
03 May - 08 May	easyJet
31 May - 05 Jun	KLM
03 May - 18 May	Ryanair
21 May - 28 May	easyJet
01 May - 01 Jun	Scandinavian Airlines
01 May - 11 Jun	Austrian Airlines
19 May - 24 May	easyJet
28 May - 02 Jun	Scandinavian Airlines
29 May - 02 Jun	Scandinavian Airlines
30 May - 04 Jun	Austrian Airlines
30 May - 14 Jun	Austrian Airlines
23 May - 06 Jun	Scandinavian Airlines
29 May - 07 Jun	Scandinavian Airlines

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 167€

Return flights