AirHint found the following cheapest return flights from Sydney (SYD) to Haikou (HAK) in April 2026 (see full year).

Return flights

25 Apr - 26 May	Scoot
28 Apr - 29 May	Sichuan Airlines
25 Apr - 26 Apr	Scoot
16 Apr - 26 Apr	China Southern
17 Apr - 26 Apr	China Southern
09 Apr - 15 Apr	Sichuan Airlines
09 Apr - 21 Apr	Sichuan Airlines
08 Apr - 20 Apr	China Southern
08 Apr - 15 Apr	China Southern
11 Apr - 18 Apr	Sichuan Airlines
04 Apr - 07 Apr	Sichuan Airlines
09 Apr - 16 Apr	China Southern
02 Apr - 02 May	China Southern

Also check the deals for one-way flights from Sydney to Haikou in April.

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 April from 291€

Return flights