Allegiant Air is a leisure-focused, low-cost airline that operates nonstop flights between under-served small and medium-sized cities and popular leisure destinations across the United States, targeting leisure travelers seeking affordable travel options. The company generates revenue from multiple streams: scheduled air service, ancillary services such as seat upgrades and baggage fees, third-party products including hotels and rental cars, and charter transportation services. Allegiant maintains competitive advantages through a direct-to-customer distribution model that bypasses travel agency intermediaries, low-cost operations enabled by a simple single-class service model and airport operations in less-congested markets, and variable capacity management that adjusts supply to match seasonal leisure demand patterns.