Barajas Airport serves which city?

Adolfo Suárez Madrid–Barajas Airport commonly known as Madrid–Barajas Airport, is the main international airport serving Madrid in Spain. At 3,050 ha (7,500 acres) in area, it is the second largest airport in Europe by physical size behind Paris–Charles de Gaulle Airport. In 2018, 57.9 million passengers used Madrid–Barajas, making it the country's largest and busiest airport and Europe's sixth busiest.

The airport opened in 1928, and has grown to be one of the most important aviation centres of Europe. Located within the city limits of Madrid, it is just 9 km (6 mi) from the city's financial district and 13 km (8 mi) northeast of the Puerta del Sol or Plaza Mayor de Madrid, Madrid's historic centre. The airport name derives from the adjacent district of Barajas, which has its own metro station on the same rail line serving the airport. Barajas serves as the gateway to the Iberian peninsula from the rest of Europe and the world, and is a particularly key link between Europe and Latin America. The airport is the primary hub and maintenance base for Iberia and Air Europa. Consequently, Iberia is responsible for more than 40% of Barajas' traffic. The airport has five passenger terminals named T1, T2, T3, T4 and T4S.