Surf Air Mobility operates one of the largest U.S. commuter airlines by scheduled departures, flying roughly 170 daily departures under the Southern Airways and Mokulele Airlines brands. The core fleet consists almost entirely of Cessna Grand Caravan turboprops — small, single-engine aircraft suited for short-haul, point-to-point routes at regional and general aviation airports that major carriers bypass. Scheduled service revenue comes from two sources: commercial ticket sales to the public (sold on-demand or via subscription) and Essential Air Service (EAS) subsidies, which are multi-year DOT contracts to serve underserved communities and represent roughly 40-46% of scheduled service revenue. EAS contracts provide guaranteed, per-flight revenue with partial inflation escalators, and Surf Air Mobility argues its low-cost Caravan operations give it an advantage in winning and renewing these contracts. Beyond scheduled flying, Surf Air Mobility runs a capital-light on-demand charter marketplace, brokering flights across a network of 400+ third-party regional operators through its app and website. The company is also developing SurfOS, an AI-powered software platform built with Palantir targeting Part 135 air operators and charter brokers, with three products planned for commercial launch in 2026. A longer-term initiative involves developing electric and hybrid-electric powertrains for the Cessna Caravan, targeting FAA certification in 2027, with an exclusive supply agreement with Textron Aviation for global distribution of the upgraded aircraft.