Cheapest return flights from Zagreb to Keflavik in May from $247

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

Return flights

10 May - 16 May Ryanair
19 May - 26 May Ryanair
01 May - 06 May Austrian Airlines
02 May - 10 May Lufthansa
01 May - 10 May Austrian Airlines
05 May - 12 May Lufthansa
19 May - 27 May LOT
01 May - 08 May Austrian Airlines
06 May - 20 May Croatia Airlines

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

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