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

Return flights

06 May - 20 May	Ryanair
06 May - 17 May	Ryanair
18 May - 25 May	Ryanair
07 May - 14 May	Ryanair
11 May - 25 May	Etihad Airways
04 May - 25 May	IndiGo
08 May - 20 May	Ryanair
04 May - 17 May	Ryanair
01 May - 15 May	Ryanair
13 May - 20 May	Etihad Airways
18 May - 08 Jun	Ryanair
26 May - 06 Jun	Ryanair
18 May - 22 Jun	Ryanair
26 May - 16 Jun	Ryanair
22 May - 05 Jun	Ryanair
28 May - 14 Jun	SWISS
28 May - 08 Jun	Ryanair
23 May - 27 Jun	Etihad Airways
21 May - 06 Jun	Etihad Airways
25 May - 12 Jun	Etihad Airways

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

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 May from $644

Return flights