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

Return flights

18 Aug - 27 Aug	Fly Play	direct
18 Aug - 24 Aug	Fly Play	direct
15 Aug - 17 Aug	Fly Play	direct
10 Aug - 17 Aug	Fly Play	direct
07 Aug - 13 Aug	Lufthansa
21 Aug - 24 Aug	Lufthansa
14 Aug - 22 Aug	Fly Play
06 Aug - 13 Aug	Fly Play	direct
04 Aug - 08 Aug	Fly Play	direct
09 Aug - 24 Aug	Lufthansa

Also check the deals for one-way flights from Keflavik to Berlin 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 Keflavik to Berlin in August from $177

Return flights