AirHint found the following cheapest return flights from Delhi (DEL) to Sydney (SYD) in January 2026 (see full year).

Return flights

31 Jan - 06 Feb	Vietnam Airlines
31 Jan - 15 Feb	Air India
30 Jan - 14 Feb	AirAsia X
31 Jan - 13 Feb	Air India
21 Jan - 26 Jan	Thai Lion Air
31 Jan - 14 Feb	Air India
31 Jan - 12 Feb	Air India
29 Jan - 13 Feb	China Eastern
31 Jan - 04 Feb	VietJet Air
26 Jan - 06 Feb	Vietnam Airlines
20 Jan - 20 Feb	SpiceJet
21 Jan - 28 Jan	AirAsia X
19 Jan - 30 Jan	AirAsia X
19 Jan - 27 Jan	AirAsia X
19 Jan - 22 Jan	AirAsia X
21 Jan - 22 Jan	AirAsia X
21 Jan - 27 Jan	AirAsia X
18 Jan - 27 Jan	AirAsia X
19 Jan - 21 Jan	AirAsia X
20 Jan - 27 Jan	IndiGo

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

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 January from $711

Return flights