Fleming studied journalism at Belfast Institute of Further and Higher Education. Her broadcasting career began at Belfast Community Radio, followed by further work at Downtown Radio and in the Northern Irish press.
Fleming joined UTV in 1998 as a freelance journalist, presenting weekend news bulletins as well as presenting and producing the magazine show UTV Life. She also narrated the 2006 UTV documentary series Teenage Kicks on the subject of teenage pregnancy.
Fleming is married with three children.
- WebArchive: Alison Fleming's profile on u.tv; captured 16 January 2003; accessed 5 April 2009
- UTV Today: UTV News Presenters Archived 2010-04-23 at Archive.is; accessed 5 April 2009
- Sunday Mirror, "I've been on TV for more than 3 years now but I'm still a bundle of nerves"; dated 15 July 2001, accessed 16 June 2008
- UTV Today: Programmes - Documentaries - Teenage Kicks
- BFI Film and TV Database
- WebArchive: Alison Fleming's profile on u.tv; captured 27 September 2007; accessed 5 April 2009