Yes, the electronic timetable is excellent, especially if you are stopping off en-route- it lets you create itineraries and browse schedules without messing about on the website. What it doesn't do is provide a full list of BA's services by destination from A to Z, you still have to search by destination and departure point, unless I am missing something. The best thing for you to do is probably to nip into one of their travel shops or write to them and obtain a paper timetable. You'll still have to search by destination but all of the departure points will be included.
There can't be too much demand for just a list- most people will find it more practical to select the info they want by searching.
Landing 24R