Unfortunately, airports are not typically open on Christmas Day as they are closed to the public for holidays. This means that most flights will not be running on this day, including domestic and international flights. However, some airports may remain open to provide essential services and operations such as air traffic control, security, and cargo handling. It is also possible that some airports may offer limited services for emergency or urgent travel situations. If you need to travel on Christmas Day, it is best to check with the specific airport or airline for their schedule and availability.