China Eastern Inaugurates New World's Longest Flight BY AEROXPLORER.COM STAFF Published 1 minutes ago 0 COMMENTS China Eastern recently launched its longest flight, a route connecting Shanghai and Buenos Aires via a stopover in Auckland. Inaugurated in December, this was advertised as a “Direct Air Link” between Asia and South America. Photo: AeroXplorer | Adam Ostler The 20,000-kilometre-long trip takes between 25 and 29 hours, depending on the wind and the weather.