I guess you didn't know that Dundee was the third busiest aero club airport in the UK with 35,118 movements in 2012. Only Gloucestershire and Shoreham was larger than Dundee on the aero club scene. But if we look at the total number of movements it's even more interesting. Here is the list of airports with scheduled flights that had less movements than Dundee:
Cardiff, Doncaster, Durham Tees Valley, Exeter, Humberside, Manston, Newquay, Norwich, Oxford, Prestwick and Southend.
I have left out a number of airports that has only PSO routes or airports that are vital links to remote communities like Land's End St. Just, Inverness and Kirkwall.