Still bookable on there website where did you get these from
Flybe press release confirms all the routes cut:
Flybe | Corporate | Media | News archive
the airline can now also confirm that it is withdrawing 30 routes of which 14
normally operate for summer only
Jersey – Luton
Isle of Man - Luton
Given that is both routes gone and a complete pull out from Luton for Flybe, it suggests GCI-LTN is looking less likely.