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

Return flights

12 Dec - 10 Jan	IndiGo
19 Dec - 31 Jan	IndiGo
22 Dec - 10 Jan	IndiGo
19 Dec - 10 Jan	IndiGo
03 Dec - 14 Jan	Singapore Airlines
21 Dec - 02 Jan	IndiGo
01 Dec - 08 Dec	IndiGo
15 Dec - 04 Jan	IndiGo
10 Dec - 31 Dec	IndiGo
20 Dec - 02 Jan	IndiGo
17 Dec - 05 Jan	AirAsia
22 Dec - 02 Jan	IndiGo
20 Dec - 31 Dec	IndiGo
19 Dec - 30 Dec	IndiGo
02 Dec - 16 Dec	IndiGo
19 Dec - 26 Dec	Air India
20 Dec - 30 Dec	IndiGo
06 Dec - 13 Dec	IndiGo
01 Dec - 05 Dec	AirAsia
18 Dec - 24 Dec	IndiGo

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

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 December from $560

Return flights