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

Return flights

15 Aug - 19 Aug	Turkish Airlines
22 Aug - 03 Sep	Turkish Airlines
04 Aug - 24 Aug	Turkish Airlines
05 Aug - 14 Aug	Turkish Airlines
27 Aug - 03 Sep	Air France
02 Aug - 17 Aug	flydubai
01 Aug - 25 Aug	flydubai

Also check the deals for one-way flights from Zagreb to Singapore 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 Singapore in August from 807€

Return flights