That is not true.
Oh yes it is. Read Tremoglie's articel for Human Events AND the 9-11 Commission Report.
The flight information presented by Vanity Fair, Michael Moore and obtained by Juidical Watch FOIA request listed the Saudis first flight as leaving 9-13-01.
This is from Tremnoglie's piece,
" According to the 9-13-01 edition of the Detroit News," U.S. Transportation Secretary Norman Y. Mineta said commercial and private planes would be allowed to fly effective 11 a.m. EDT Thursday." Other papers reported the same thing. In fact, limited flights resumed the afternoon of the 12th. William Shumann spokesman for the FAA told me that commercial airline and charter flights resumed 11am September 13. There is a difference between commercial aviation (i.e. airlines or charters such as the Saudi flight) and private or non-commercial ( i.e. an individually owned aircraft) according to Shumann."
The rumor started because the stupid Vanity Fair lierbal writer made a mistake between what teh FAA considered commercial and private. Typicla liberal meida jerk!
Don't be a liberal media lapdog.