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

Return flights

29 Sep - 16 Oct	AirAsia	direct
29 Sep - 09 Oct	AirAsia	direct
29 Sep - 03 Oct	AirAsia	direct
29 Sep - 02 Oct	AirAsia	direct
29 Sep - 17 Oct	AirAsia	direct
30 Sep - 16 Oct	AirAsia	direct
29 Sep - 10 Oct	AirAsia	direct
29 Sep - 08 Oct	AirAsia	direct
22 Sep - 24 Sep	AirAsia
28 Sep - 16 Oct	AirAsia	direct
29 Sep - 13 Oct	AirAsia	direct
22 Sep - 27 Sep	AirAsia
22 Sep - 25 Sep	AirAsia
23 Sep - 30 Sep	AirAsia
24 Sep - 26 Sep	AirAsia
27 Sep - 28 Sep	AirAsia
23 Sep - 27 Sep	AirAsia
20 Sep - 22 Sep	AirAsia
26 Sep - 30 Sep	Scoot
29 Sep - 30 Sep	AirAsia

Also check the deals for one-way flights from Singapore to Penang 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 Penang in September from $101

Return flights