 The terminal became fully operational on August 1, 2014, leading to the transfer of five international airlines to Terminal 3 to ease congestion at Terminal 1 starting with Delta Air Lines on that day, followed by KLM on August 4, Emirates on August 15, Singapore Airlines on September 1, and Cathay Pacific on October 1.Both United Airlines and Qantas are relocated to Terminal 3 from Terminal 1 on October 28, 2018.Middle Eastern carriers Qatar Airways was also relocated to Terminal 3 on December 1, 2018, while Turkish Airlines was also transferred to Terminal 3 on January 1, 2019.