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

Return flights

27 Aug - 28 Aug	Wizz Air
27 Aug - 31 Aug	Wizz Air
27 Aug - 03 Sep	Wizz Air
30 Aug - 03 Sep	Wizz Air
28 Aug - 09 Sep	easyJet
30 Aug - 02 Sep	Wizz Air
29 Aug - 07 Sep	Ryanair
21 Aug - 11 Sep	Eurowings
13 Aug - 24 Aug	Wizz Air
14 Aug - 17 Aug	Wizz Air
28 Aug - 04 Sep	Scandinavian Airlines
14 Aug - 24 Aug	Wizz Air
21 Aug - 24 Aug	Eurowings
21 Aug - 28 Aug	easyJet
25 Aug - 31 Aug	Ryanair
14 Aug - 26 Aug	Wizz Air
14 Aug - 28 Aug	Wizz Air
30 Aug - 06 Sep	Wizz Air
21 Aug - 02 Sep	Eurowings
29 Aug - 01 Sep	Scandinavian Airlines

Also check the deals for one-way flights from Hamburg 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 Hamburg to Keflavik in August from $197

Return flights