AirHint found the following cheapest return flights from Zagreb (ZAG) to Mostar (OMO) in August 2025 (see full year).

Return flights

28 Aug - 29 Aug	Croatia Airlines	direct
03 Aug - 04 Aug	Croatia Airlines	direct
07 Aug - 11 Aug	Croatia Airlines	direct
03 Aug - 06 Aug	Croatia Airlines	direct
27 Aug - 28 Aug	Croatia Airlines
08 Aug - 12 Aug	Ryanair
22 Aug - 24 Aug	Air Serbia
12 Aug - 17 Aug	Ryanair

Also check the deals for one-way flights from Zagreb to Mostar in August.

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 Mostar in August from 123€

Return flights