AirHint found the following cheapest return flights from Dublin (DUB) to Hanoi (HAN) in September 2026 (see full year).

Return flights

24 Sep - 08 Oct	Etihad Airways
14 Sep - 01 Oct	Etihad Airways
14 Sep - 30 Sep	Etihad Airways
21 Sep - 05 Oct	Etihad Airways
04 Sep - 14 Sep	Ryanair
14 Sep - 15 Oct	Etihad Airways
11 Sep - 25 Sep	IndiGo
19 Sep - 03 Oct	Etihad Airways
04 Sep - 17 Sep	Etihad Airways
03 Sep - 17 Sep	Etihad Airways
07 Sep - 14 Sep	Qatar Airways
11 Sep - 18 Sep	Ryanair
18 Sep - 09 Oct	Etihad Airways
12 Sep - 26 Sep	Etihad Airways
08 Sep - 15 Sep	Qatar Airways
01 Sep - 30 Sep	Etihad Airways
25 Sep - 02 Oct	Etihad Airways

Also check the deals for one-way flights from Dublin 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 Dublin to Hanoi in September from 632€

Return flights