The station opened on 1 November 1897 and was originally called Adelaide and Windsor. It was renamed Adelaide in 1935. It became an unstaffed halt in October 1996.
Beside Adelaide Station there are extensive yard facilities and these used to be packed with cement, container, beer and fertiliser trains. Freight north of the border ended in the late 1990s and the yard has lain empty since. When the 80 Class units were withdrawn from service in 2005 they came to Adelaide to be stored. There are plans that the yard will be turned into a new DMU depot for the new 4000 Class trains that are currently on order for NI Railways.
Service
Mondays to Saturdays there is a half hourly service towards Portadown or Newry in one direction and to Bangor Or Belfast in the other with extra services at peak times and the service is hourly in the evenings operated by Northern Ireland Railways.
On Sundays there is an hourly service in each direction.