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

Return flights

27 Jul - 06 Aug	Norwegian
03 Jul - 17 Jul	Ryanair
22 Jul - 28 Jul	SWISS
06 Jul - 13 Jul	Norwegian
21 Jul - 30 Jul	Scandinavian Airlines
26 Jul - 07 Aug	Scandinavian Airlines
21 Jul - 31 Jul	Ryanair
21 Jul - 29 Jul	Scandinavian Airlines
18 Jul - 24 Jul	Eurowings
05 Jul - 12 Jul	Scandinavian Airlines
27 Jul - 07 Aug	Scandinavian Airlines
20 Jul - 27 Jul	Scandinavian Airlines
24 Jul - 01 Aug	Eurowings
17 Jul - 24 Jul	Eurowings	direct
24 Jul - 07 Aug	Eurowings
24 Jul - 07 Aug	Eurowings	direct
28 Jul - 02 Aug	Finnair
18 Jul - 05 Aug	Vueling Airlines

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

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 July from 330€

Return flights