Harry Reid International Airport is an international airport serving the Las Vegas Valley, a metropolitan area in the U.S. state of Nevada. It is located five miles 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 Las Vegas Valley is a major metropolitan area in the southern part of the U.S. state of Nevada, and the second largest in the Southwestern United States. The state's largest urban agglomeration, the Las Vegas Metropolitan Statistical Area is coextensive since 2003 with Clark County, Nevada. The Valley is largely defined by the Las Vegas Valley landform, a 600 sq mi (1,600 km2) basin area surrounded by mountains to the north, south, east and west of the metropolitan area. The Valley is home to the three largest incorporated cities in Nevada: Las Vegas, Henderson and North Las Vegas. Eleven unincorporated towns governed by the Clark County government are part of the Las Vegas Township and constitute the largest community in the state of Nevada.