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

Return flights

26 Oct - 14 Nov	IndiGo
26 Oct - 31 Oct	IndiGo
19 Oct - 10 Nov	IndiGo
20 Oct - 11 Nov	IndiGo
01 Oct - 12 Oct	IndiGo
15 Oct - 11 Nov	IndiGo
01 Oct - 22 Oct	IndiGo
01 Oct - 10 Oct	IndiGo
01 Oct - 06 Oct	IndiGo
22 Oct - 11 Nov	IndiGo
14 Oct - 20 Oct	IndiGo
22 Oct - 10 Nov	IndiGo
24 Oct - 11 Nov	IndiGo
01 Oct - 01 Nov	IndiGo
13 Oct - 20 Oct	AirAsia
23 Oct - 11 Nov	IndiGo
17 Oct - 31 Oct	IndiGo
14 Oct - 21 Oct	IndiGo
24 Oct - 12 Nov	IndiGo
23 Oct - 30 Oct	IndiGo

Also check the deals for one-way flights from Bangalore to Sydney in October.

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 Bangalore to Sydney in October from $453

Return flights