Cheap flights Dublin to Barcelona

October is the cheapest month to fly this route, with September and November close behind and prices climbing through the summer. Late spring and early autumn give you warm weather in Barcelona without peak-season fares. Weekday departures, especially Tuesday and Wednesday, usually cost less than Friday and Sunday, when weekenders and business travellers fill the planes. Avoid the Christmas and New Year window, the Easter school break and the August holiday peak. Book a few weeks ahead for spring and autumn trips, and earlier for summer, when the good seats go first.

Ryanair and Vueling are the low-cost mainstays, with Aer Lingus and Iberia Express also flying the route; Emerald Airlines, Transavia France, Norwegian and Norwegian International appear on some departures. KLM Royal Dutch Airlines and Portug sell connections rather than nonstop seats. Low-cost fares usually include a small cabin bag only, with checked luggage, seat choice and priority boarding charged separately, so add those to the total before you compare. Full-service tickets on Aer Lingus or Iberia Express normally bundle a cabin bag and a checked allowance, which can make them competitive once bags are in the price.

All flights land at Josep Tarradellas Barcelona - El Prat, the main airport for the city, a short ride southwest of the centre. The airport train and metro both connect to the city, and there is an express bus and a taxi rank outside the terminals. Allow extra time if you land late, when the metro stops running and you are down to buses and taxis. If you booked a connection onward from Barcelona, keep in mind that a separate ticket means you collect your bag and check in again.

Currency

EUR (€)

Power sockets

Type C, F · 230 V

Language

Spanish

Emergency number

112, 061, 091

Driving side

right

Calling code

+34

Internet domain

.es

EU / Schengen

EU member, Schengen area

Population of Barcelona

1.7 M (2025)

Time zone

UTC+02 (Europe/Madrid)

Country facts: Wikidata

• Check whether your fare includes a checked bag or only a small cabin bag, since low-cost tickets charge for the rest.
• Check the departure time against Dublin Airport's transfer options, since early flights need a plan for getting there.
• If you are flying with a stop, make sure the whole trip is on one ticket so a delay is covered.
• Bring a valid passport or national ID card accepted for travel to Spain.
• Compare October fares against the summer months before you settle on dates.
• Leave a buffer between landing and any onward travel from Barcelona.