Operating IOM-LCY in the morning and then LCY-IOM in the evening, needs the plane overnight in IOM, which increases costs if the airline is BACF for example. You then need higher fares to cover the hotel accommodation etc. The world has moved on since Jersey European. How many people are going to book LCY-IOM-BHD when there are direct LCY-BHD flights or any number of low cost flights to Belfast from other places and again if they do, it would be because the flight is cheap. When Jersey European was operating there wasn't anywhere near the competition.