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

Return flights

29 Sep - 02 Oct	Scoot
28 Sep - 03 Oct	Scoot	direct
30 Sep - 07 Oct	AirAsia
30 Sep - 03 Oct	Scoot
29 Sep - 01 Oct	Scoot
29 Sep - 02 Oct	Scoot	direct
28 Sep - 02 Oct	Scoot
28 Sep - 02 Oct	Scoot	direct
29 Sep - 30 Sep	Scoot
30 Sep - 17 Oct	AirAsia
30 Sep - 09 Oct	AirAsia
28 Sep - 30 Sep	Scoot
28 Sep - 29 Sep	Scoot	direct
29 Sep - 30 Sep	Scoot	direct
28 Sep - 30 Sep	Scoot	direct

Also check the deals for one-way flights from Singapore to Hat Yai 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.

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Cheapest return flights from Singapore to Hat Yai in September from $184

Return flights