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

Return flights

22 Oct - 29 Oct	Hong Kong Airlines
22 Oct - 28 Oct	T'way Air
29 Oct - 05 Nov	Cathay Pacific
18 Oct - 26 Oct	Hong Kong Airlines
28 Oct - 04 Nov	Cathay Pacific
27 Oct - 08 Nov	AirAsia X
30 Oct - 02 Nov	Hong Kong Airlines
27 Oct - 02 Nov	AirAsia X
27 Oct - 09 Nov	AirAsia X
24 Oct - 08 Nov	AirAsia X
15 Oct - 26 Oct	AirAsia X
15 Oct - 02 Nov	AirAsia X
24 Oct - 26 Oct	AirAsia X
24 Oct - 02 Nov	AirAsia X
24 Oct - 09 Nov	AirAsia X
10 Oct - 26 Oct	AirAsia X

Also check the deals for one-way flights from Sapporo 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 Sapporo to Sydney in October from $657

Return flights