what is iberia
About Iberia. The largest airline in Spain, Madrid-based Iberia (IB) flies non-stop to about 15 domestic destinations and about 60 international destinations within Europe, and in Asia, Africa, the Middle East, North America and South America. Iberia is a member of the oneworld Alliance and has codeshare agreements with more than 15 airlines. Adolfo SuÃ¡rez Madrid-Barajas Airport (MAD) is home to Iberia's hub, while Barcelona El Prat Airport (BCN) serves as a focus city. Iberia's fleet of aircraft feature a two-cabin (Business Class and Economy Class) configuration.