The recent announcement by Loganair that its Dundee to Heathrow service will end on October 23rd has sparked a lot of discussion and concern. This decision, while seemingly routine, has deeper implications for the region's connectivity and the future of regional aviation. Personally, I think this development highlights the ongoing struggle for regional airports to remain viable in the face of increasing competition and changing travel habits. What makes this particularly fascinating is the role of public service obligations (PSOs) in sustaining these routes. These agreements, where funding