- Barajas Airport, officially known as Adolfo Suárez Madrid-Barajas Airport, is the main international airport serving Madrid, Spain. Located in the northeast of the city, it is the largest airport in Spain and the sixth busiest in Europe by passenger traffic. Barajas Airport has four terminals (T1, T2, T3, and T4), with Terminal 4 being the most modern and largest. It is a hub for several Spanish airlines and serves as a major connecting point for international flights between Europe and Latin America. The airport offers a wide range of amenities, including duty-free shopping, restaurants, lounges, and transportation options to and from the city center.