Suvarnabhumi Airport — Bangkok, Thailand

Suvarnabhumi Airport, carrying the code BKK, serves Bangkok, Thailand, from a site just 5 feet above sea level, about as flat as international hubs get. Opened in 2006, it replaced Don Mueang as the Thai capital's primary international gateway and now ranks among the busiest airports in Asia. The name Suvarnabhumi translates roughly to 'golden land,' a title associated with Thailand's former king. The airport operates three runways to manage its heavy mix of long-haul international flights, regional connections, and cargo traffic. As a large airport, BKK functions as a major hub for Thai Airways and a key connecting point between Europe, Asia, and Oceania. Its scale and traffic volume make it one of the defining transport hubs of mainland Southeast Asia, handling tens of millions of passengers annually through its expansive single terminal complex. Ground transportation, including a dedicated rail link, connects the airport directly to central Bangkok, easing the journey for arriving passengers headed into the city.