AirHint found the following cheapest return flights from Dublin (DUB) to Hanoi (HAN) in October 2025 (see full year).

Return flights

01 Oct - 09 Oct	Norwegian Air Sweden AOC
01 Oct - 29 Oct	Ryanair
16 Oct - 29 Oct	Ryanair
22 Oct - 05 Nov	Aer Lingus
06 Oct - 21 Oct	Qatar Airways
22 Oct - 19 Nov	Ryanair
06 Oct - 18 Oct	Ryanair
01 Oct - 14 Oct	Aer Lingus
01 Oct - 17 Oct	Aer Lingus
09 Oct - 22 Oct	IndiGo
25 Oct - 05 Nov	Aer Lingus
21 Oct - 11 Nov	Hainan Airlines
15 Oct - 29 Oct	Aer Lingus
11 Oct - 26 Oct	IndiGo
01 Oct - 09 Nov	Ryanair
30 Oct - 14 Nov	Lufthansa
27 Oct - 17 Nov	Aer Lingus
01 Oct - 08 Nov	Ryanair
27 Oct - 08 Nov	Aer Lingus
30 Oct - 15 Nov	SWISS

Also check the deals for one-way flights from Dublin to Hanoi in October.

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 October from 628€

Return flights