Dublin (DUB) to Barcelona (BCN): 923 miles (1,486 km) great-circle, about 2h 20m nonstop by our estimate. Cheapest fare observed: $140 round-trip on Ryanair, with 1 stop, departing June 1, 2026.
$140 round-trip, Ryanair FR24, departing 2026-06-01 at 19:55, returning 2026-06-08. The recorded itinerary left on a Monday, returning on a Monday 7 nights later; the fare was observed 37 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $140, it ranked 9th of the 30 round-trip fares we recorded from DUB (median $216). That is 15.2 cents per great-circle mile (round-trip price over one-way distance), close to the DUB median of 14.6 cents across 30 round-trip routes.
Routes from DUB of similar length: Nice (911 mi) at $222 and Milan (859 mi) at $61.
Ryanair had the cheapest fare on 20 of 30 DUB routes. It is the 24th longest of the 30 routes we track from DUB.
Of 57 departure airports with a fare to Barcelona, Dublin (DUB) ranked 26th at $140. Lowest: $44 from Milan (MXP); highest: $1401 from Brisbane (BNE); 28 nonstop. Cheapest-fare airlines (routes): Vueling (11), Wizz Air (10), Ryanair (8), Air Canada (4), Air Europa (3) and Wizz Air Malta (3), plus 18 more.
That depends on your passport and trip, so check the official source for Spain: European Commission: Schengen visa policy. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Dublin, Europe/Madrid; flight time is our estimate.