first flight to Beijing on Tuesday, use of the A350 will gradually expand to key routes such as to Guangzhou in South China’s Guangdong Province and Chengdu in Southwest China’s Sichuan Province. In 2019, China Eastern will use the A350 on long-haul routes from Shanghai to cities in Europe, Australia and North America. China and South Korea started to double-track a key air route flying over China toward Mongolia, the Middle East and Europe from Thursday midnight, in a bid to reduce airway congestion, according to xinhuanet.com on Thursday. The agreement will benefit 455 flights. Flight capacity in the Bohai Bay region will increase by 45 percent and the safety risk will be reduced by 42 percent, the report said, citing an official from the Air Traffic Management Bureau under the Civil Aviation Administration of China (CAAC).