AirHint found the following cheapest return flights from Frankfurt (FRA) to Zagreb (ZAG) in April 2026 (see full year).

Return flights

03 Apr - 06 Apr	Air Serbia
24 Apr - 27 Apr	Air Serbia
10 Apr - 29 May	Air Serbia
30 Apr - 04 May	Air Serbia
30 Apr - 03 May	Air Serbia
08 Apr - 12 Apr	Air Serbia
18 Apr - 25 Apr	Lufthansa	direct
26 Apr - 05 May	Lufthansa	direct
08 Apr - 13 Apr	Lufthansa
24 Apr - 27 Apr	Lufthansa	direct
10 Apr - 29 May	Lufthansa	direct
30 Apr - 04 May	Croatia Airlines	direct
30 Apr - 03 May	Croatia Airlines	direct
08 Apr - 12 Apr	Lufthansa	direct

Also check the deals for one-way flights from Frankfurt to Zagreb in April.

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 Frankfurt to Zagreb in April from 153€

Return flights