Las Vegas International Airport (IATA code LAS) is officially named McCarran International Airport and is the main airport that serves the city of Las Vegas and Clark County in Nevada, United States. It is positioned approximately 8 km from the central business district of Las Vegas and has four runways and two public terminals connected by free shuttle buses, as well as terminals for private aircraft, US government contractors, cargo and sightseeing flights. The airport is base for Southwest Airlines and Allegiant Air and handles around 50 million passengers a year. McCarran International Airport was the first airport worldwide that offers service to all airlines from one desk. The airport continues to expand and upgrade, which includes the construction of a third terminal and an extension of the Las Vegas Monorail with underground stations at terminals 1 and 3. The onsite airport facilities include VIP lounge, translation services, and special facilities for the disabled passengers, as well as several parking zones for short- and long-term stay. There are also a bank and ATM machines, many restaurants, cafes, shops and a medical center. At the airport there are more that 1200 slot machines, free wireless internet and a consolidated rent-a-car facility set 5 km from the terminals and accessed via regular buses from the airport. McCarran International Airport could be reached by taxicabs and buses.