Suvarnabhumi Airport is designed to handle 45 million passengers annually, but its capacity has been breached since 2011, when it handled more than 47 million. In 2012 alone, it handled over 53 million, which prompted airport officials to expand the airport and raise its capacity to 65 million by 2018-its target completion date.
Don Mueang, meanwhile, is undergoing an expansion on its own to accommodate a growing traffic, as it is designated as the country's low-cost hub.