Harry Reid International Airport (IATA: LAS, ICAO: KLAS, FAA LID: LAS) is an international airport serving the Las Vegas Valley, a metropolitan area in the U.S. state of Nevada. It is located five miles (8 km; 4 nmi) south of downtown Las Vegas in the unincorporated area of Paradise and covers 2,800 acres (11 km2) of land. Reid is owned by Clark County and operated by the county’s department of aviation. The airport is named after the late U.S. congressman and senator from Nevada Harry Reid. It has four runways and two terminals with five gate areas (concourses) all connected with a people mover system. Reid is one of two airports in the United States with slot machines inside the terminals.
The airport opened in January 1943 as Alamo Field and initially catered to general aviation. In December 1948, it was rechristened for U.S. senator Pat McCarran, and commercial airlines shifted to it from the Las Vegas Army Airfield. Passenger counts increased in the 1950s as the Strip expanded, leading to the construction of a new terminal. McCarran later came to be seen as the model for the common-use approach to airport resources in the United States and pioneered radio-frequency identification of baggage. Terminal 3 was added in 2012, and the airport was renamed in honor of Senator Reid in 2021.
Reid is served by over 30 airlines and is an operating base for Allegiant Air, Frontier Airlines, JSX, Southwest Airlines, and Spirit Airlines. Southwest became its dominant carrier in the 1990s. In 2023, 57.6 million passengers passed through the airport, the most in its history. Reid has international flights to cities in Asia, Europe, and North America.