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

Return flights

01 Sep - 17 Sep	Ryanair
13 Sep - 25 Sep	Ryanair
12 Sep - 19 Sep	Ryanair
10 Sep - 24 Sep	Austrian Airlines
03 Sep - 20 Oct	Wizz Air
02 Sep - 18 Sep	IndiGo
05 Sep - 05 Oct	Juneyao Airlines
05 Sep - 04 Oct	Juneyao Airlines
11 Sep - 21 Sep	Lufthansa
02 Sep - 09 Sep	IndiGo
10 Sep - 30 Sep	Etihad Airways
09 Sep - 16 Sep	Hainan Airlines
15 Sep - 30 Sep	Etihad Airways
04 Sep - 04 Oct	Hainan Airlines
09 Sep - 24 Oct	Etihad Airways
02 Sep - 21 Oct	IndiGo
03 Sep - 21 Oct	IndiGo
01 Sep - 21 Oct	IndiGo
20 Sep - 07 Oct	Wizz Air
05 Sep - 03 Oct	Austrian Airlines

Also check the deals for one-way flights from Brussels to Hanoi 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 Brussels to Hanoi in September from 664€

Return flights