The aircraft that typically requires the longest runway for a safe takeoff is the Airbus A380-800, especially when it is at its Maximum Takeoff Weight (MTOW) of roughly 1.2 million pounds. Under standard conditions (sea level, 15°C), the "Superjumbo" needs approximately 9,800 to 11,000 feet (about 3,000 to 3,350 meters) of runway to get airborne. However, environmental factors like high altitude or extreme heat (which thins the air) can push this requirement even higher; at "high and hot" airports like Johannesburg, the required length can exceed 13,000 feet. The Boeing 747-8 is a close second, needing similar lengths for full-capacity long-haul missions. While specialized military planes like the Antonov An-225 (before its destruction) technically held higher requirements, in the world of active commercial aviation in 2026, the A380 remains the benchmark for "runway hunger," which is why it is limited to operating at major global hubs with Tier-1 infrastructure.