It started broadcasting in March 2008, but had an official launch alongside its sister services on 1 December 2008.[1] The station, which timeshares with RTÉjr Radio is on air between 21:00 and 7:00,[2] and is available on channel 207 on Saorview, Ireland's free-to-air Digital Terrestrial Television service.
On 6 November 2019, RTÉ management announced that, as part of a major cost-saving program, all its digital radio stations would be closed, including RTÉ Chill.[3] In March 2021, it was announced that the station would remain on air via Saorview, cable and online streaming, but the DAB network would close at the end of the month.[4]