AirHint found the following cheapest return flights from Singapore (SIN) to Haikou (HAK) in September 2025 (see full year).

Return flights

30 Sep - 06 Oct	Scoot	direct
16 Sep - 23 Sep	Scoot	direct
21 Sep - 25 Sep	Scoot	direct
18 Sep - 23 Sep	Scoot	direct
11 Sep - 15 Sep	Scoot	direct
27 Sep - 09 Oct	Scoot	direct
29 Sep - 09 Oct	Scoot	direct
08 Sep - 15 Sep	Scoot	direct
16 Sep - 18 Sep	Scoot	direct
15 Sep - 18 Sep	Scoot	direct
01 Sep - 04 Sep	Scoot	direct
01 Sep - 06 Sep	Scoot	direct
01 Sep - 08 Sep	Scoot	direct
27 Sep - 07 Oct	China Southern

Also check the deals for one-way flights from Singapore to Haikou in September.

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.

Book a cheap hotel in Haikou

Cheap car rent in Haikou

Cheapest return flights from Singapore to Haikou in September from $127

Return flights