FILE - Air China planes sit on the tarmac at Beijing Airport in Beijing, China on Aug. 20, 2009. The biggest U.S. airlines and their unions are asking the Biden administration in a letter Thursday, April 11, 2024, to stop approving more flights to the United States by Chinese airlines. (AP Photo/Greg Baker, File)
FILE - Passengers walk past a couple browsing their smartphones near a China Southern Airlines, parked on the tarmac at the Beijing Capital International Airport Saturday, Nov. 19, 2016. The biggest U.S. airlines and their unions are asking the Biden administration in a letter Thursday, April 11, 2024, to stop approving more flights to the United States by Chinese airlines. (AP Photo/Andy Wong, File)