Unfortunately we were unable to facilitate organising coaches from parts of the country where travel to London is more difficult. We really hope as many as possible will be able to find a way to come. We have discovered that for some reason if you buy a ticket to Dartford (via London) tickets are much cheaper so it might be worth playing around with where you book a ticket too/from.
National Express - Coach Travel & Airport Transfers | National Express may also be a good option. They have coaches from every major city across the country.
Alternatively - if you can drum up as much interest in your area as possible perhaps you could organise a car share or even your own coach!
If anyone has any good ideas for cheaper travel to London please let us know so that we can share it!