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

Return flights

20 Oct - 03 Nov	VietJet Air
26 Oct - 05 Nov	Scoot
10 Oct - 20 Oct	AirAsia X
25 Oct - 28 Oct	VietJet Air
22 Oct - 03 Nov	VietJet Air
22 Oct - 11 Nov	VietJet Air
24 Oct - 10 Nov	VietJet Air
22 Oct - 18 Nov	VietJet Air
22 Oct - 13 Nov	VietJet Air
22 Oct - 20 Nov	VietJet Air
15 Oct - 10 Nov	VietJet Air
15 Oct - 11 Nov	VietJet Air
09 Oct - 15 Oct	Jetstar
16 Oct - 26 Oct	AirAsia X
22 Oct - 26 Oct	VietJet Air
05 Oct - 17 Oct	AirAsia X
14 Oct - 18 Oct	VietJet Air
11 Oct - 31 Oct	AirAsia X
09 Oct - 18 Oct	Malaysia Airlines
22 Oct - 29 Oct	Malaysia Airlines

Also check the deals for one-way flights from Sydney to Delhi 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 Sydney to Delhi in October from $523

Return flights