Dubai International Airport
Facts on DXB
Dubai wanted the code 'DUB' but Dublin, Ireland got there first, so Dubai International settled on DXB, using 'X' as the filler letter IATA commonly assigns when a city's preferred letters are already taken.
Source: The National
DXB's Terminal 3, which opened in 2008, is officially the largest airport building in the world by floor space according to Guinness World Records, covering 1,185,000 square meters -- roughly the area of 94 football fields.
Source: Guinness World Records
Dubai International has held the title of the world's busiest airport for international passenger traffic for three years running, handling about 95.2 million international travelers in 2025 according to Airports Council International.
Source: ACI World