Bill Gates currently utilizes a fleet of private aircraft, but his primary "workhorses" for international travel in 2026 are two Gulfstream G650ER business jets (registered as N887WM and N194WM). The "ER" stands for Extended Range, allowing these $70 million aircraft to fly up to 7,500 nautical miles non-stop, effectively connecting Seattle to almost any major city on the globe. These jets feature ultra-luxurious, custom interiors that can seat up to 19 passengers and are equipped with advanced air filtration systems and high-speed satellite connectivity. In addition to the Gulfstreams, Gates has ownership in two Bombardier Challenger 350s through a fractional program with NetJets, which he uses for shorter domestic hops. He also famously owns a Cessna 208 Amphibian seaplane for more rugged travel and a collection of helicopters. Despite his use of private aviation, Gates is a vocal advocate for sustainable fuel and has stated that he offsets his flight emissions by purchasing high-quality carbon removals.