Beijing Daxing International Airport began resuming international and regional flights on Tuesday following the optimization of immigration, aviation and customs policies earlier this month. China Southern Airlines Flight CZ309 left the airport at 9 am for Hong Kong, the first cross-border passenger flight to originate from Daxing in nearly three years. "This is my first cross-border trip since the outbreak of the epidemic, and I am very excited and happy to be on the first flight," said passenger Lan Yu. Lan said she plans to spend the coming Spring Festival with her friends in Hong Kong, and she chose to depart from Daxing airport because the services, facilities and inbound-outbound procedures are efficient. (....)