Hajj & Umrah

Tying Ihraam at the Meeqaat and the Meeqaat of the People of South Africa

Q: A person departs from South Africa to perform hajj. From which point is it compulsory upon him to tie his ihraam? Does he have to tie it in the aeroplane when the announcement is made, or is it permissible for him to tie it in the Jeddah Airport after they land? Could you please explain the details of the mas’alah of tying the ihraam at the meeqaat?