Allegiant Air is a major American airline headquartered in Summerlin, Nevada, a suburb of Las Vegas. The airline focuses on serving leisure traffic from small and medium-sized cities which it considers to be underserved, using a ultra low-cost business model with minimal inclusions in fares and a greater number of add-on fees.

Summerlin is a community in the Las Vegas Valley of Southern Nevada. It lies at the edge of the Spring Mountains and Red Rock Canyon to the west; it includes the census-designated place of Summerlin South, is partly within the official city limits of Las Vegas and partly within unincorporated Clark County. This community occupies over 22,500 acres and holds over 230 parks, more than two dozen public and private schools, 14 houses of worship, ten golf courses, three resort hotels, recreational facilities, retail and entertainment centers, well-established office parks, a medical center, and more.