Cheap flights from Ireland to Barcelona from £20

If you aren’t able to travel during the month of November, then book flights to Barcelona from Ireland during January instead. Flights to Barcelona in January, while not as cheap as those in November, still average around £81.

Our data shows that Wednesday is the least expensive day to fly to Barcelona. Tickets to fly out on this day can be as low as £131. 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 £155.

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 £130 when looking at flights departing in the evening. Flights in the afternoon are often more expensive, with an average ticket price of £173.

Fly from Cork to Girona Costa Brava 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 £119 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 £102 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, Scandinavian Airlines, and TAP AIR PORTUGAL 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 72% 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 18% 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 122 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.

Tuesday 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 10% of their flights experiencing any sort of delay.

As of March 2026, 3 flights take off from Ireland and land in Barcelona each day. The most common flight departure time for this route is 13:00, with 65% of daily flights taking off in the afternoon.

As of March 2026, there are 25 flights per week flying from Ireland to Barcelona. The most common day of the week flights depart is Tue, with 28% of flights taking off on this day.