Why Seville for a city break?
Seville is the soul of Andalusia — a city of orange trees and Moorish palaces, of tapas bars that have barely changed in a century, of flamenco that erupts from basement tablaos at midnight, and of the most extraordinary royal palace still in use in Europe. The Real Alcázar — a Moorish palace built for a Christian king, a UNESCO World Heritage Site that looks more Alhambra than Alhambra — is one of the finest buildings in Spain. The Cathedral, the largest Gothic building in the world, contains the tomb of Christopher Columbus.
From London it's two and a half hours; direct flights from several UK regional airports. Seville is best in spring (March to May) when the orange trees are in blossom, the Semana Santa (Holy Week) processions fill the streets, and the Feria de Abril (April Fair) turns the city into a week of flamenco dresses and sherry. October is equally beautiful without the festivals. July and August are seriously hot — 40°C+ — and best avoided unless you stay close to air conditioning.