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

Return flights

23 Mar - 29 Mar	Ryanair
24 Mar - 29 Mar	Ryanair
24 Mar - 31 Mar	Ryanair
23 Mar - 31 Mar	Ryanair
04 Mar - 12 Mar	Ryanair
24 Mar - 30 Mar	Ryanair
09 Mar - 15 Mar	Ryanair
29 Mar - 04 Apr	Austrian Airlines
17 Mar - 20 Mar	Ryanair
10 Mar - 15 Mar	Ryanair
16 Mar - 20 Mar	Ryanair
31 Mar - 06 Apr	Austrian Airlines
24 Mar - 03 Apr	Ryanair
28 Mar - 08 Apr	Ryanair

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

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 March from $216

Return flights