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

Return flights

28 Oct - 04 Nov	China Eastern
18 Oct - 24 Oct	Shenzhen Airlines
15 Oct - 18 Oct	Jetstar Japan
01 Oct - 29 Oct	Jetstar Japan
15 Oct - 15 Nov	Jetstar Japan
21 Oct - 23 Oct	Jetstar Japan
20 Oct - 23 Oct	Jetstar Japan
04 Oct - 07 Oct	Jetstar Japan
01 Oct - 06 Oct	Jetstar Japan
30 Oct - 06 Nov	Jetstar Japan
24 Oct - 27 Oct	Jeju Air
21 Oct - 24 Oct	Jeju Air
14 Oct - 19 Oct	Jeju Air
31 Oct - 02 Nov	Jetstar Japan
27 Oct - 01 Nov	Jetstar Japan
26 Oct - 01 Nov	Jetstar Japan
31 Oct - 03 Nov	China Airlines
26 Oct - 02 Nov	Jeju Air

Also check the deals for one-way flights from Sapporo to Hanoi 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 Hanoi in October from $240

Return flights