In the last two days at least 6 thousand flights have been deleted, especially in the United States and China, causing a lot of inconvenience to travelers during this holiday season. Airlines have pointed to sick leave of their staff as a major cause of cancellations, tracing the problem to the growing number of coronavirus infections due to variante omicron. In recent days, the same airlines had reported the risk of canceled flights, after a rapid increase in positives among on-board and ground personnel.
