Air Nostrum, Líneas Aéreas del Mediterráneo, S.A., also known as Iberia Regional, is a regional airline based in Valencia, Spain. Air Nostrum is an independent carrier which operates as a franchisee of Iberia Airlines and Binter Canarias. Iberia Regional franchise is a regional partner of Iberia and an affiliate member of the Oneworld airline alliance. Air Nostrum operates an extensive network of 91 domestic and international routes to 51 destinations, as well as charter flights. Its main base is Valencia Airport, with hubs at Barcelona Airport and Madrid-Barajas Airport.