Hamad International Airport is the sole international airport in the state of Qatar. Located south of its capital, Doha, it replaced the former Doha International Airport as Qatar's principal airport. Formerly known as New Doha International Airport (NDIA), Hamad International Airport was originally scheduled to open in 2009, but after a series of costly delays, the airport finally opened on 30 April 2014 with a ceremonial Qatar Airways flight landing from nearby Doha International. National carrier Qatar Airways and all other carriers formally relocated to the new airport on 27 May 2014. The airport is named after the previous Emir of Qatar, Hamad bin Khalifa Al Thani.