12:16 p.m. September 11, 2001: US Airspace Cleared of All Civilian Aircraft

US airspace is clear of aircraft except for military and emergency flights. Only a few transoceanic flights are still landing in Canada. [USA Today, 8/12/2002] At 12:30 p.m., the FAA reports about 50 (non-civilian) planes still flying in US airspace, but none are reporting problems. [CNN, 9/12/2001; New York Times, 9/12/2001]