The patron of Aiello is Saint Ulrich, known in dialect as San Durì, celebrated on 4 July in the Church of Sant'Ulderico.
The most important festival of the town of Aiello, however, is the Fiera di San Carlo, held for more than 200 years on the first Sunday following 4 November. In the nearby hamlet of Joannis, Saint Agnes, the local patron, is celebrated instead. The town holds the Villa de Fin-Teuffenbach and the Castello de Bona-Urbanis.