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

Return flights

23 Aug - 30 Aug	Air India
05 Aug - 09 Sep	VietJet Air
05 Aug - 08 Aug	VietJet Air
16 Aug - 22 Aug	Air India
04 Aug - 08 Aug	VietJet Air
25 Aug - 03 Sep	IndiGo
19 Aug - 26 Aug	IndiGo
09 Aug - 20 Aug	SpiceJet
21 Aug - 26 Aug	VietJet Air
26 Aug - 02 Sep	VietJet Air
18 Aug - 08 Sep	VietJet Air
20 Aug - 25 Aug	VietJet Air
28 Aug - 04 Sep	VietJet Air
24 Aug - 02 Sep	IndiGo
25 Aug - 15 Sep	VietJet Air
26 Aug - 16 Sep	VietJet Air
22 Aug - 27 Aug	IndiGo
25 Aug - 01 Sep	VietJet Air
21 Aug - 11 Sep	IndiGo
20 Aug - 26 Aug	VietJet Air

Also check the deals for one-way flights from Delhi 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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney

Cheapest return flights from Delhi to Sydney in August from $490

Return flights