Cheap flights from Ireland to Barcelona from £25

If you aren’t able to travel during the month of September, then book flights to Barcelona from Ireland during November instead. Flights to Barcelona in November, while not as cheap as those in September, still average around £15.

Our data shows that Monday is the least expensive day to fly to Barcelona. Tickets to fly out on this day can be as low as £126. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to Barcelona for around £187.

Flying to Barcelona from Ireland in the evening is the least expensive time of day to depart. momondo users have found prices as low as £122 when looking at flights departing in the evening. Flights in the afternoon are often more expensive, with an average ticket price of £189.

Fly from Dublin to Barcelona-El Prat for the best Ireland - Barcelona flight prices

You are more likely to see cheaper flights to Barcelona from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around £131 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from Ireland for as low as £104 on momondo.

There are 2 cabin classes available to choose from on Ireland to Barcelona flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair and KLM are the most popular carriers operating from Ireland to Barcelona

Ryanair, Vueling and Aer Lingus are the top three most popular airlines that fly to Barcelona from Ireland according to our data. Ryanair is the first choice among our users, with 74% of people opting to fly with this airline when travelling to Barcelona. Keep in mind that there are 3 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Ireland and Barcelona have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

As of June 2026, 8 flights take off from Ireland and land in Barcelona each day. The most common flight departure time for this route is 18:00, with 50% of daily flights taking off in the evening.

As of June 2026, there are 61 flights per week flying from Ireland to Barcelona. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.