Tend to agree with LTNman. Surely if they intended to end the route, they would have just stopped bookings altogether from 27 March as opposed to offering these high prices only option. You would be mad to book at that price when there are cheaper alternatives, but for those who may book at that price it becomes more work for Flybe when they have to hand out the refunds. You also need to take into account bookings before the price increase, of which there must be some...
Website timetable still shows as daily from 29 March - 3 September