Not so much the aircraft as routing, but a Pilatus PC12, Salzburg to Southampton, this morning passed (audibly) over London City, and in the afternoon went back much the same way. Now there doesn't seem any particular reason for such a "long way round", avoiding France but going instead right through the most congested airspace in Europe at medium levels and then back southwards again. Often see the same for southern Europe to Dublin flights, passing overhead London but headed due west.
https://www.flightradar24.com/data/a...e-ego#2e9666ba