US airlines say China has blocked more than a dozen recent and future flights from entering the country, which has been tightening already-strict COVID-19 travel restrictions.
China ordered the cancellations after some passengers tested positive for COVID-19 on flights that arrived in China in late December, according to industry officials.
American Airlines said Tuesday that six of its flights from Dallas-Fort Worth to Shanghai in late January and early February have been cancelled.
United Airlines said it was forced to cancel six flights from San Francisco to Shanghai later this month. Delta Air Lines said it cancelled one flight last week and another this Friday to Shanghai.
