BA intend to switch their South African and Tokyo flights to T1
Quote from BA
Another change for the winter 2003 season is that British Airways’ flights from London Heathrow to Johannesburg and Tokyo will operate from Heathrow’s Terminal 1 instead of Terminal 4 from October 26, 2003. Both these routes have a high number of transfer passengers, many of whom will no longer have to swap terminals at Heathrow for their connecting flights.
This is the first phase of British Airways’ flight switches between Heathrow terminals which will help make better use of the existing facilities prior to the opening of Terminal 5 in 2008.
To support these additional longhaul services, a major programme of infrastructure improvements is taking place at Terminal 1 including new lounges and check-in facilities.
Per Ardua ad Astra! ........ Honi Soit Qui Mal y Pense!