AirHint found the following cheapest return flights from Dublin (DUB) to Barcelona (BCN) in August 2026 (see full year).

Return flights

12 Aug - 28 Aug	Ryanair	direct
27 Aug - 03 Sep	Ryanair	direct
31 Aug - 03 Sep	Ryanair	direct
08 Aug - 11 Aug	Ryanair
04 Aug - 11 Aug	Ryanair
04 Aug - 08 Aug	Ryanair
07 Aug - 11 Aug	Ryanair
08 Aug - 10 Aug	Ryanair
08 Aug - 11 Aug	Ryanair	direct
04 Aug - 11 Aug	Ryanair	direct
07 Aug - 10 Aug	Ryanair
07 Aug - 16 Aug	TAP

Also check the deals for one-way flights from Dublin to Barcelona in August.

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 Barcelona in August from $126

Return flights