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

Return flights

01 Dec - 12 Dec	Lufthansa
06 Dec - 15 Dec	Ryanair
29 Dec - 14 Jan	Ryanair
12 Dec - 08 Jan	Ryanair
28 Dec - 08 Jan	Ryanair
29 Dec - 11 Jan	Ryanair
21 Dec - 30 Dec	KLM
28 Dec - 11 Jan	Ryanair
27 Dec - 11 Jan	Aer Lingus
23 Dec - 30 Dec	Aer Lingus
27 Dec - 17 Jan	Aer Lingus
18 Dec - 08 Jan	Aer Lingus
27 Dec - 10 Jan	Ryanair
20 Dec - 10 Jan	Fly One
09 Dec - 16 Dec	Turkish Airlines

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

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 December from 630€

Return flights