Today (Saturday December 21st 2013), Arriva Buses Wales will withdraw most of their services in the Aberystwyth area. This includes the 20 to Cardiff, which is supposed to be a coach. It departs early in the morning, returning in the evening.
Now though, another poster has appeared. Stagecoach will operate a service to London on selected days of the week, starting on Thursday 9th January 2014. This will also depart early in the morning, with the return service arriving so late in the evening that it’s actually early next morning.
Like the Y Gerallt Gymro (Gerald for short) premier train service from Holyhead to Cardiff this service is only available for return trips in one direction. There are no mirror workings (from Cardiff to Holyhead/Aberystwyth in the morning and heading to Cardiff in the evening). Unlike ‘Gerald’ however, the coach service will run at weekends.