AirHint found the following cheapest return flights from Bangalore (BLR) to Sydney (SYD) in September 2025 (see full year).

Return flights

20 Sep - 10 Oct	IndiGo
07 Sep - 14 Sep	Air India
05 Sep - 12 Sep	AirAsia
01 Sep - 14 Sep	AirAsia
01 Sep - 06 Sep	AirAsia
01 Sep - 13 Sep	AirAsia
01 Sep - 04 Sep	AirAsia
08 Sep - 14 Sep	AirAsia
08 Sep - 13 Sep	AirAsia
02 Sep - 07 Sep	Air India
11 Sep - 21 Sep	Air India
16 Sep - 28 Oct	Air India
09 Sep - 21 Oct	Air India
16 Sep - 21 Oct	Air India
20 Sep - 28 Oct	Malaysia Airlines
22 Sep - 17 Oct	AirAsia
03 Sep - 10 Oct	Malaysia Airlines
22 Sep - 08 Oct	AirAsia
17 Sep - 08 Oct	AirAsia
22 Sep - 07 Oct	AirAsia

Also check the deals for one-way flights from Bangalore 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 Bangalore to Sydney in September from 384€

Return flights