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

Return flights

09 Apr - 12 Apr	Air Serbia
30 Apr - 03 May	Air Serbia
10 Apr - 13 Apr	Ryanair
06 Apr - 19 Apr	Croatia Airlines
06 Apr - 13 Apr	Air Serbia
09 Apr - 13 Apr	Ryanair
06 Apr - 19 Apr	Lufthansa	direct
06 Apr - 13 Apr	Lufthansa	direct
01 Apr - 08 Apr	Lufthansa	direct
08 Apr - 15 Apr	Lufthansa	direct
01 Apr - 06 Apr	Lufthansa	direct
30 Apr - 03 May	Croatia Airlines	direct
24 Apr - 03 May	Croatia Airlines	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 154€

Return flights