Have Sunair ceased the Billund flight into Birmingham? I know it usually stops over the holiday period but hasn't operated since mid-December (Manchesters Sunair flights are currently operating). I believe there were plans to go double daily on the route.
However, as the flight was quite often operated by a Jetstream rather than a Dornier as planned, i'm guessing the passenger numbers were not that good (a problem going double daily may have solved?)
Fried Chicken