AirHint found the following cheapest return flights from Zagreb (ZAG) to Keflavik (KEF) in June 2025 (see full year).

Return flights

14 Jun - 19 Jun	Ryanair
25 Jun - 03 Jul	Ryanair
21 Jun - 26 Jun	Ryanair
24 Jun - 29 Jun	Ryanair
24 Jun - 03 Jul	Lufthansa
28 Jun - 07 Jul	Austrian Airlines
18 Jun - 22 Jun	Ryanair
23 Jun - 29 Jun	Ryanair
07 Jun - 15 Jun	Ryanair
12 Jun - 19 Jun	Ryanair
17 Jun - 22 Jun	Ryanair
07 Jun - 18 Jun	Ryanair
09 Jun - 12 Jun	Pegasus Airlines

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

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 Zagreb to Keflavik in June from 242€

Return flights