Cheapest return flights from Hanoi to Sydney in September from $422

Best time to book flights for Hanoi (HAN) to Sydney (SYD) flights at AirHint

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

Return flights

18 Sep - 21 Sep Scoot Tigerair
20 Sep - 28 Sep Scoot Tigerair
24 Sep - 14 Oct AirAsia
25 Sep - 14 Oct AirAsia
19 Sep - 22 Sep VietJet Air
05 Sep - 09 Sep AirAsia
23 Sep - 11 Oct AirAsia
06 Sep - 09 Sep AirAsia
24 Sep - 11 Oct AirAsia
27 Sep - 14 Oct AirAsia
25 Sep - 11 Oct AirAsia
05 Sep - 18 Sep AirAsia
06 Sep - 18 Sep AirAsia
23 Sep - 02 Oct AirAsia
24 Sep - 02 Oct AirAsia
23 Sep - 04 Oct AirAsia
24 Sep - 04 Oct AirAsia
11 Sep - 18 Sep AirAsia
10 Sep - 20 Sep AirAsia
04 Sep - 09 Sep AirAsia

Also check the deals for one-way flights from Hanoi to Sydney in September.

Skyscanner

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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