AirHint found the following cheapest one-way flights from Dublin (DUB) to Barcelona (BCN) in May 2026 (see full year).

One-Way flights

26 May	Vueling Airlines	direct
15 May	Vueling Airlines	direct
08 May	Vueling Airlines	direct
06 May	Vueling Airlines	direct
24 May	Vueling Airlines	direct
09 May	Ryanair	direct
19 May	Vueling Airlines	direct
13 May	Vueling Airlines	direct
17 May	Vueling Airlines	direct
10 May	Vueling Airlines	direct

Also check the deals for return flights from Dublin to Barcelona 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 one-way flights from Dublin to Barcelona in May from $48

One-Way flights