[4] In 1990, Flood was made a Founding Fellow of Kellogg College, Oxford, formally Rewley House.

He has been President of the British Society for the History of Mathematics from 2006 until 2009,[5] and also Research Associate in the School of Theoretical Physics, Dublin Institute for Advanced Studies.

Allowing people from a variety of backgrounds... to get access to current thinking on the major issues of the day.

He has appeared on BBC Radio 4's In Our Time[11] and has lectured on transatlantic voyages with RMS Queen Mary 2.

Some of the most recent books with which he has been involved are James Clerk Maxwell: Perspectives on his Life and Work (Oxford University Press, 2014),[12][13][14] The Great Mathematicians (Arcturus, 2011), which celebrates the achievements of the great mathematicians in their historical context,[15][16] and Mathematics in Victorian Britain (Oxford University Press, 2011),[17][18] which assembles in a single source, research on the history of mathematicians in Victorian Britain that would otherwise be out of reach of the general reader.