ALL THE way to jer in a let from blk. i dont think so. i'd take about 2 hours!
They wouldn't use the Let. Manx2 also have two Dornier 228s and two Jetstream 31s available to them, with the latter being the most suited to longer sectors within the British Isles.
I am pretty sure Flybe has operated Blackpool to Jersey charters in the past (on behalf of a tour operator), maybe in the early 2000s for one or two seasons, flying on a weekly or monthly basis. I distinctly remember BA CitiExpress doing a similar thing.