When comparing the two, the Airbus A380 is significantly "bigger" in nearly every dimension except for one: total length. The A380 is the world's largest passenger aircraft, featuring a full-length double-deck design that can carry over 800 passengers in a high-density configuration (though typically around 500–550 in three classes). It has a much wider wingspan (79.8 meters) and stands much taller (24.1 meters) than any Boeing 777. However, the newest variant of the Triple Seven, the Boeing 777-9 (777X), actually surpasses the A380 in length, measuring 76.7 meters (251 feet), making it the longest commercial airliner ever built. While the 777-9 is longer, it is a single-deck aircraft with a typical capacity of 400–425 passengers. The A380 is essentially a "flying building" that requires specialized airport infrastructure to accommodate its massive weight and height. While the 777 is the "workhorse" of the long-haul world due to its twin-engine efficiency, the A380 remains the undisputed champion of raw physical scale, passenger volume, and "presence" on the tarmac.