Cheapest one-way flights from Dublin to Barcelona in September from $29

Best time to book flights for Dublin (DUB) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest one-way flights from Dublin (DUB) to Barcelona (BCN) in September 2025 (see full year).

One-Way flights

26 Sep Ryanair direct
08 Sep Vueling Airlines direct
29 Sep Vueling Airlines direct
22 Sep Ryanair direct
19 Sep Ryanair direct
03 Sep Ryanair direct
17 Sep Ryanair direct
24 Sep Vueling Airlines direct
18 Sep Ryanair direct
23 Sep Vueling Airlines direct

Also check the deals for return flights from Dublin to Barcelona in September.

Skyscanner

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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