Allegiant Travel Co is a leisure travel company focused on providing travel and leisure services and products to residents of under-served cities in the United States. It operates a low-cost, low utilization passenger airline marketed to leisure travelers in under-served cities, allowing it to sell air transportation both on a stand-alone basis and bundled with the sale of air-related and third-party services and products. In addition, it provides air transportation under fixed-fee flight arrangements. In connection with its leisure travel focus, the company has opened Sunseeker Resort Charlotte Harbor, equipped with several guestrooms and food and beverage outlets. The company's operating segments are the Airline, which generates maximum revenue, and Sunseeker Resort.