On sale. As of November 11, 2022 Baotou Donghe District airports in the sale of air tickets, all personnel leaving the bag must hold a health code (green code), within 48 hours of the nucleic acid test negative certificate, Note: the epidemic prevention and control policies around the world in accordance with the actual situation at any time to adjust the travelers to travel in a timely manner to understand and grasp the departure, destination cities and airlines epidemic prevention and control policies, and rationalize the travel arrangements, so as to avoid the impact and delay in the trip.