The Boeing 747, often called the "Queen of the Skies," typically has a cruising speed of approximately Mach 0.85, which translates to roughly 570 miles per hour (920 km/h) at standard cruising altitudes (around 35,000 to 45,000 feet). While its maximum speed can reach up to Mach 0.92, pilots generally maintain the 0.85 cruise speed to optimize fuel efficiency and engine longevity. This speed makes the 747 one of the fastest commercial subsonic jetliners ever built—faster than many modern twins like the Boeing 737 or Airbus A320, which often cruise at Mach 0.78 to 0.80. The 747's four powerful engines and sweep-back wing design were engineered specifically to allow for high-speed, long-distance travel, a necessity for the "Jumbo Jet" to revolutionize global aviation in the late 20th century. Although most airlines have retired the 747 from passenger service in favor of more fuel-efficient twin-engine planes in 2026, the aircraft's legendary speed and "heft" continue to make it a favorite for heavy cargo operations and government transport, including the famous Air Force One.