Agreed, Loganair haven't currently got spare fleet capacity, though those LHR services are largely switched from other London-area airports rather than representing new seats. But most healthy companies have a strategy for growth, and certain routes represent low-hanging fruit on that count. As Mr A Tis pointed out, MAN-SOU supported upto six Q400's daily pre-covid. Nobody is suggesting that this level of capacity would be appropriate now, but neither is zero. The journey between Manchester and Southampton is an expensive and challenging one. Plenty of travellers need to make that journey and, aside from self-drive, the options aren't great. There is money to be made by the right operator, offering reliability and a fair but profitable tariff. That doesn't mean the sort of fare one could fly Manchester to New York for!