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

Return flights

31 Jul - 03 Aug	VietJet Air
30 Jul - 02 Aug	AirAsia X
30 Jul - 06 Aug	AirAsia X
23 Jul - 30 Jul	AirAsia X
28 Jul - 10 Aug	VietJet Air
15 Jul - 01 Aug	VietJet Air
29 Jul - 06 Aug	VietJet Air
13 Jul - 21 Jul	Air India
13 Jul - 20 Jul	Air India
28 Jul - 13 Aug	AirAsia X
11 Jul - 25 Jul	IndiGo
15 Jul - 22 Jul	IndiGo
30 Jul - 05 Aug	IndiGo
30 Jul - 27 Aug	IndiGo
19 Jul - 30 Jul	Air India
28 Jul - 08 Aug	AirAsia X
14 Jul - 31 Jul	Air India
25 Jul - 27 Jul	AirAsia X
23 Jul - 27 Jul	AirAsia X
11 Jul - 26 Jul	Air India

Also check the deals for one-way flights from Delhi to Sydney in July.

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 Delhi to Sydney in July from 522€

Return flights