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

Return flights

02 Jul - 15 Jul	Ryanair
01 Jul - 07 Jul	easyJet
22 Jul - 05 Aug	Ryanair
28 Jul - 05 Aug	easyJet
02 Jul - 07 Jul	easyJet
15 Jul - 21 Jul	easyJet
10 Jul - 15 Jul	Eurowings
15 Jul - 19 Jul	Ryanair
09 Jul - 14 Jul	SWISS
01 Jul - 05 Jul	Austrian Airlines
14 Jul - 20 Jul	easyJet
09 Jul - 16 Jul	easyJet
31 Jul - 06 Aug	Scandinavian Airlines
31 Jul - 07 Aug	Scandinavian Airlines
28 Jul - 04 Aug	easyJet
27 Jul - 05 Aug	easyJet
27 Jul - 04 Aug	Eurowings
24 Jul - 07 Aug	easyJet
27 Jul - 03 Aug	Eurowings
29 Jul - 01 Aug	Scandinavian 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 $301

Return flights