Milano Malpensa Airport "City of Milan" (IATA: MXP), former "Aeroporto Città di Busto Arsizio" is Milan's largest airport. It is located northwest of central Milan, Italy. The airport is connected to Milan by the Milano-Varese highway as well as by the "Malpensa Express" train starting from the Milan Cadorna railway station (LeNord regional railways) and taking about 40 minutes. It is also connected to Linate Airport by a scheduled bus service and by Milan's local transportation.
The airport of Milan-Linate (LIN), receives only the traffic of domestic and European short-haul international flights, with 8.295.099 million passengers in 2009. From Linate also departs some low cost airlines. The airport has one terminal and two runways, one for commercial traffic and one for general aviation.
The airport of Orio al Serio (IATA: BGY), is the Italy fourth in the number of passengers; the airport served 7,160,008 passengers in 2009. It is located in the town of Orio al Serio (Bergamo), 5 km from the center of Bergamo and 45 km from the center of Milan. The airport, with Linate Airport and Malpensa Airport, forms Milan's airport system. The airport is specialized in low cost flights and the first in Italy for the number of "low cost" passenger.