[size= medium]Travelers often ask [/size]<strong style="font-size: medium;" data-start="1191" data-end="1301">what are the longest flights in the world[size= medium] when planning intercontinental journeys. These flights typically operate between major global hubs and cover extraordinary distances without layovers. Leading airlines such as Singapore Airlines, Qantas, Qatar Airways, Delta, and United Airlines dominate these routes using fuel-efficient, long-range aircraft. Flight durations range from 15 to nearly 19 hours, depending on winds and routing. Despite the long hours, passengers benefit from fewer connections and reduced overall travel time. Knowing what are the longest flights in the world allows travelers to choose suitable cabins, plan rest schedules, and prepare for extended time onboard.[/size]