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

Return flights

25 Sep - 01 Oct	Scoot
25 Sep - 01 Oct	Scoot	direct
01 Sep - 29 Sep	VietJet Air	direct
23 Sep - 26 Sep	VietJet Air
08 Sep - 12 Sep	VietJet Air	direct
29 Sep - 02 Oct	VietJet Air
11 Sep - 12 Sep	VietJet Air	direct
25 Sep - 28 Sep	Scoot
19 Sep - 22 Sep	VietJet Air	direct
25 Sep - 29 Sep	Scoot
03 Sep - 07 Sep	VietJet Air	direct
23 Sep - 25 Sep	VietJet Air
10 Sep - 12 Sep	VietJet Air	direct
29 Sep - 03 Oct	VietJet Air
05 Sep - 04 Oct	Scoot
30 Sep - 04 Oct	VietJet Air
30 Sep - 07 Oct	VietJet Air
05 Sep - 04 Oct	Scoot	direct
16 Sep - 04 Oct	Thai AirAsia
17 Sep - 04 Oct	Thai AirAsia

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 123€

Return flights