Cheapest return flights from Zagreb to Bucharest in June from $142

AirHint found the following cheapest return flights from Zagreb (ZAG) to Bucharest (OTP) in June 2026 (see full year).

Return flights

04 Jun - 07 Jun Ryanair
09 Jun - 11 Jun Ryanair
09 Jun - 13 Jun Croatia Airlines direct
08 Jun - 13 Jun Air Serbia
08 Jun - 14 Jun Air Serbia
04 Jun - 06 Jun Air Serbia
10 Jun - 13 Jun Air Serbia
09 Jun - 12 Jun Air Serbia
09 Jun - 10 Jun Air Serbia
19 Jun - 29 Jun Ryanair

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

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