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

Return flights

01 Dec - 07 Dec	Ryanair
01 Dec - 15 Dec	Ryanair
01 Dec - 11 Dec	Ryanair
01 Dec - 16 Dec	Ryanair
02 Dec - 15 Jan	Ryanair
03 Dec - 18 Dec	Ryanair
05 Dec - 26 Dec	Ryanair
08 Dec - 23 Dec	Ryanair
05 Dec - 19 Dec	Ryanair
31 Dec - 28 Jan	Ryanair
04 Dec - 11 Dec	Ryanair
15 Dec - 22 Dec	Ryanair
31 Dec - 20 Jan	Ryanair
30 Dec - 20 Jan	Aer Lingus
28 Dec - 28 Jan	Ryanair
31 Dec - 18 Jan	Ryanair
30 Dec - 17 Jan	Aer Lingus
15 Dec - 15 Jan	Ryanair
16 Dec - 30 Jan	Ryanair
30 Dec - 11 Jan	Aer Lingus

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 $622

Return flights