Milan–Malpensa Airport (IATA: MXP), the largest airport for the Milan Metropolitan Area, northern Italy. Not to be confused with Milan Linate Airport for which there is the tag [lin].
Milan–Malpensa Airport (IATA: MXP, ICAO: LIMC), also named City of Milan Airport (formerly City of Busto Arsizio Airport) is the largest airport for the Milan Metropolitan Area, northern Italy. It serves a total of 15 million inhabitants in Lombardy, Piedmont and Liguria. The airport is located 40 kilometres (25 mi) northwest of central Milan, Italy, close to Lake Maggiore and next to River Ticino, which acts as the border between Lombardy and Piedmont. The airport has two terminals and two runways; a third runway has been announced with construction commencing in 2014 and scheduled completion in 2017. There is a dedicated cargo terminal called "CargoCity", which currently handles over 435,000 tons of traffic annually.
See here for the airport website.