The X18 Arriva bus is connecting Newcastle with Berwick upon Tweed.
It stops in Butchers Lane and 'Longhirst Post Office' well, there is no post office in Longhirst, but the postbox opposite of the village hall will do...
For further information and a time table, please use the Arriva bus website.
There is also a smartphone app available where you can get the timetable and real time information on where your bus is. You can download the app here.