Cheapest return flights from Zagreb to Keflavik in August from $375

AirHint found the following cheapest return flights from Zagreb (ZAG) to Keflavik (KEF) in August 2026 (see full year).

Return flights

02 Aug - 10 Aug KLM
17 Aug - 20 Aug Air Serbia
02 Aug - 11 Aug SWISS
03 Aug - 13 Aug Air Serbia
01 Aug - 09 Aug Lufthansa
03 Aug - 11 Aug SWISS
20 Aug - 23 Aug Lufthansa
01 Aug - 15 Aug Air Serbia
12 Aug - 19 Aug Lufthansa
04 Aug - 13 Aug Ryanair

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

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