8 stations and 4 kilometer this was the first metro madrid line, which opened in 1919. Madrid is served by highly developed transport infrastructure. Road, rail and air links are vital to maintain the economic position of madrid as a leading centre of employment, enterprise, trade and tourism, providing effective connections with not only other parts of the region, but also the rest of spain and europe as a whole. madrid airport is 12 kilometres from the city centre, which can easily be reached by public transport. There is a 3-euro supplement to be added to the cost of any ticket, and the trip takes just over 30 minutes. madrid has an extensive public transport system, and its the best way to get around the city.