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

Return flights

08 Sep - 17 Sep	Scoot	direct
19 Sep - 21 Sep	VietJet Air	direct
08 Sep - 12 Sep	Scoot	direct
08 Sep - 11 Sep	Scoot	direct
07 Sep - 10 Sep	VietJet Air	direct
17 Sep - 21 Sep	VietJet Air	direct
16 Sep - 18 Sep	Vietnam Airlines	direct
12 Sep - 21 Sep	VietJet Air
08 Sep - 15 Sep	Scoot
23 Sep - 28 Sep	VietJet Air
26 Sep - 04 Oct	VietJet Air
29 Sep - 02 Oct	VietJet Air
10 Sep - 05 Oct	VietJet Air
29 Sep - 01 Oct	VietJet Air
29 Sep - 02 Oct	Scoot	direct
29 Sep - 01 Oct	Scoot	direct
29 Sep - 04 Oct	Scoot
30 Sep - 02 Oct	VietJet Air
13 Sep - 05 Oct	Vietravel Airlines
29 Sep - 03 Oct	VietJet Air

Also check the deals for one-way flights from Hanoi to Singapore 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 Hanoi to Singapore in September from $156

Return flights