A spokesman for the Flight Support Group of the Manx Business Connection says they've had only very limited success in drumming up more backing for flights to London City.
The group helped underwrite the route earlier this year by coordinating commercial backing, so the three-flight daily schedule could return.
John Webster says there was "a small amount of interest", but much less than they'd hoped for or anticipated, given what he calls the enormity of the issue:
Clip 1
Hopes DOI and striking bus drivers could meet
Unite the Union members are about to enter a third round of industrial action
Blocked gullies found to be cause of Castle Street flood
Problems 'not linked to the sewerage system'
'Only a very small number' needing support cashing benefits cheques
Minister confident those yet to cash cheques can access payments
Samantha Barks throws support behind wind turbine petition
'Many of us believe this would permanently change the character of our Island'
Fire and Rescue Service respond to HGV incident
Driver was trapped due to injuries sustained in the collision