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

Return flights

25 Oct - 30 Oct	Scoot
18 Oct - 04 Nov	Scoot
17 Oct - 02 Nov	Scoot
28 Oct - 04 Nov	China Eastern
25 Oct - 29 Oct	China Southern
18 Oct - 31 Oct	China Southern
28 Oct - 11 Nov	China Southern
28 Oct - 01 Nov	China Southern
20 Oct - 03 Nov	China Southern
21 Oct - 04 Nov	China Southern
17 Oct - 03 Nov	China Southern
16 Oct - 01 Nov	China Southern
17 Oct - 01 Nov	China Southern
22 Oct - 25 Oct	Cathay Pacific

Also check the deals for one-way flights from Sydney to Haikou 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 Haikou in October from 277€

Return flights