McCarran International Airport Las Vegas (IATA: LAS, ICAO: KLAS, FAA LID: LAS) is the principal commercial airport serving Las Vegas and surrounding Clark County, Nevada. The airport is located five miles (8 km) south of the central business district of Las Vegas. It serves as a hub for US Airways, and is a focus city for AirTran Airways, Allegiant Air, and Southwest Airlines; McCarran is also the largest operation base for both Allegiant and Southwest.

As of October 2007, Southwest Airlines operated more flights out of McCarran than at any other airport. Southwest also carries the most passengers in and out of McCarran. Southwest currently operates out of 21 gates, primarily in Concourse C, at McCarran. The US Airways night-flight hub operation, established in 1986 by predecessor America West Airlines, makes the carrier McCarran's second busiest airline.

McCarran Airport is somewhat unusual in that it has more than 1,300 slot machines throughout the airport terminals. Reno/Tahoe International Airport also has gambling machines both airside and landside.