Cheap flights from Spain to Ireland from €20

The month of January is another great option to travel to Ireland, with average flight prices from Spain averaging around €77.

The cheapest day to depart on your flight to Ireland is on a Saturday when prices can be found for as low as €96. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around €205. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

In the afternoon is the cheapest time of day to fly from Spain to Ireland when you can find flight prices for as low as €96. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around €131.

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

You are more likely to see cheaper flights to Ireland from Spain when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €111 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Spain for as low as €83 on momondo.

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

Ryanair, KLM, and Vueling are the most popular carriers operating from Spain to Ireland

Iberia Express, Vueling and Aer Lingus are the top three most popular airlines that fly to Ireland from Spain according to our data. Iberia Express is the first choice among our users, with 30% of people opting to fly with this airline when travelling to Ireland. Keep in mind that there are 4 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Spain and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 116 minutes.

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

Wednesday 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 16% of their flights experiencing any sort of delay.

As of March 2026, 15 flights take off from Spain and land in Ireland each day. The most common flight departure time for this route is 10:00, with 69% of daily flights taking off at midday.

109 flights are operational weekly from Spain to Ireland as of March 2026. The most popular departure day for this route is Fri, with 27% of flights per week taking off on this day.