MRCS Eng 1864; LRCP Edin 1867.
Flint was trained at Manchester, Aberdeen and St Mary's Hospital London. After qualifying he returned to his home in Buxton (he may have been the son of George Flint) and was later appointed physician to Devonshire Hospital and Bath Charity. He was a general practitioner in Buxton, and later worked with Thomas Buxton Flint, who was either his son or his nephew.