AirHint found the following cheapest return flights from Duesseldorf (DUS) to Keflavik (KEF) in August 2025 (see full year).

Return flights

26 Aug - 02 Sep	Ryanair
31 Aug - 08 Sep	Eurowings	direct
31 Aug - 05 Sep	Eurowings	direct
24 Aug - 05 Sep	Eurowings	direct
24 Aug - 01 Sep	Eurowings
17 Aug - 01 Sep	Eurowings
21 Aug - 26 Aug	Eurowings
28 Aug - 31 Aug	easyJet
26 Aug - 30 Aug	Ryanair
20 Aug - 01 Sep	Ryanair
27 Aug - 31 Aug	easyJet
26 Aug - 28 Aug	Ryanair
24 Aug - 29 Aug	Eurowings	direct
17 Aug - 29 Aug	Eurowings	direct
21 Aug - 25 Aug	Eurowings	direct
24 Aug - 31 Aug	Eurowings
17 Aug - 21 Aug	Eurowings
30 Aug - 06 Sep	Eurowings
24 Aug - 01 Sep	Eurowings	direct
07 Aug - 07 Sep	Eurowings

Also check the deals for one-way flights from Duesseldorf to Keflavik in August.

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 August from 241€

Return flights