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

Return flights

01 Apr - 14 Apr	AirAsia X
30 Apr - 14 May	IndiGo
01 Apr - 08 Apr	AirAsia X
01 Apr - 16 Apr	AirAsia X
01 Apr - 10 Apr	IndiGo
05 Apr - 23 Apr	IndiGo
05 Apr - 12 Apr	IndiGo
06 Apr - 12 Apr	IndiGo
22 Apr - 04 May	IndiGo
06 Apr - 10 Apr	IndiGo
05 Apr - 11 Apr	IndiGo
03 Apr - 12 Apr	Singapore Airlines
30 Apr - 14 May	Air India	direct
22 Apr - 04 May	Air India	direct

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

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 April from $561

Return flights