Cheap flights from Ireland to Barcelona from €21

If you aren’t able to travel during the month of September, then book flights to Barcelona-El Prat Airport from Ireland during November instead. Flights to Barcelona-El Prat Airport in November, while not as cheap as those in September, still average around €17.

Our data shows that Wednesday is the least expensive day to fly to Barcelona-El Prat Airport. Tickets to fly out on this day can be as low as €143. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Barcelona-El Prat Airport on Friday is €218.

Our data shows that the cheapest Ireland to Barcelona-El Prat Airport flights are usually those with departure times in the evening. Our users have found flights to Barcelona-El Prat Airport in the evening for as low as €174. Flights to Barcelona-El Prat Airport are more costly at midday, with an average ticket price of €207. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around €143 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Ireland for as low as €128 on momondo.

There is only 1 cabin class available to choose from on Ireland to Barcelona-El Prat Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Ryanair, KLM, and British Airways are the most popular carriers operating from Ireland to Barcelona-El Prat

Vueling, Ryanair and Aer Lingus are the top three most popular airlines that fly to Barcelona-El Prat Airport from Ireland according to our data. Vueling is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Barcelona-El Prat Airport. Keep in mind that there are 4 different airlines that fly to Barcelona-El Prat Airport 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 124 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.

The number of flights available between Ireland and Barcelona-El Prat Airport is 6 per day as of June 2026. The most frequent departure time is 18:00, with 50% of daily flights leaving in the evening.

As of June 2026, there are 48 flights per week flying from Ireland to Barcelona-El Prat Airport. The most common day of the week flights depart is Mon, with 21% of flights taking off on this day.