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

Return flights

01 Sep - 02 Oct	VietJet Air
14 Sep - 30 Sep	VietJet Air
02 Sep - 16 Sep	Singapore Airlines
16 Sep - 30 Sep	Singapore Airlines
09 Sep - 24 Sep	Singapore Airlines
16 Sep - 30 Sep	Air India	direct
02 Sep - 16 Sep	Air India	direct
14 Sep - 30 Sep	Air India	direct
09 Sep - 24 Sep	Air India	direct
06 Sep - 19 Sep	Air India	direct
01 Sep - 02 Oct	Air India	direct

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

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 September from 450€

Return flights