AirHint found the following cheapest return flights from Newcastle (NCL) to Sydney (SYD) in August 2025 (see full year).

Return flights

27 Aug - 10 Sep	China Southern
25 Aug - 08 Sep	China Southern
31 Aug - 07 Sep	British Airways
25 Aug - 07 Sep	easyJet
27 Aug - 03 Sep	China Southern
25 Aug - 02 Sep	China Southern
26 Aug - 02 Sep	China Southern
25 Aug - 01 Sep	China Southern
28 Aug - 04 Sep	British Airways
21 Aug - 11 Sep	easyJet
23 Aug - 30 Aug	easyJet
22 Aug - 29 Aug	easyJet
19 Aug - 29 Aug	British Airways
24 Aug - 31 Aug	easyJet
20 Aug - 26 Aug	easyJet
20 Aug - 27 Aug	Ryanair
19 Aug - 26 Aug	British Airways
21 Aug - 28 Aug	Ryanair
19 Aug - 31 Aug	SunExpress

Also check the deals for one-way flights from Newcastle to Sydney 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 Newcastle to Sydney in August from $955

Return flights