Aviation History
Spanish aviation history includes the pioneering autogyro invented by engineer Juan de la Cierva in the 1920s, a precursor to the helicopter. Iberia, founded in 1927, became Spain's national airline, was nationalized under the Franco government in 1944, and grew alongside the country's post-war tourism boom that turned coastal airports into major European gateways. Spain's aviation market liberalized following EU integration, and low-cost carriers, both homegrown (Vueling) and foreign (notably Ryanair), came to dominate domestic and short-haul traffic. Iberia merged with British Airways in 2011 to form the International Airlines Group (IAG), while Spain today is one of Europe's largest tourism-driven aviation markets.
Spanish engineer Juan de la Cierva achieved the first sustained flight of his autogyro, an important precursor technology to the modern helicopter.
Iberia, Compañía Aérea de Transportes, was incorporated in June 1927 and began flight operations later that year.
After the Spanish Civil War, Iberia operated its first international service as an independent carrier, a Madrid-Lisbon route, in 1939.
Iberia was nationalized in 1944 and placed under Spain's state industrial holding company, becoming the country's state-owned flag carrier.
From roughly the 1960s onward, mass European tourism to Spain's coasts spurred major growth at airports such as Palma de Mallorca and Málaga.
Vueling launched as a Barcelona-based low-cost airline in 2004, later merging with rival Clickair and becoming part of the IAG group.
Iberia merged with British Airways in January 2011 to create the International Airlines Group, a major transatlantic airline holding company.
By the mid-2010s, Irish low-cost carrier Ryanair had grown into one of the largest operators of passenger traffic within Spain; exact rankings shift year to year.
Iberia · Vueling · Air Europa · Ryanair (largest foreign operator in Spain) · Binter Canarias · Iberia Express
General aviation history sources (Wikipedia, Iberia corporate history, Britannica); current market-share rankings among Spanish carriers are time-sensitive and approximate.