Came across a timetable for scheduled flights from NCL in 1983. Flights were:
ABZ - Dan Air (1 daily on weekends), Air UK (2 daily on weekdays)
AMS - British Caledonian (2 daily)
BFS - Dan Air (1 daily on weekdays)
BGO - Dan Air (1 daily on weekdays)
BHX - Dan Air (2 flights on Tue & Thur)
BOH - Dan Air (2 daily)
CWL - Dan Air (2 flights on Mon, Wed & Fri)
DUB - Dan Air (1 daily - not Sat)
GLA - British Caledonian (2 daily)
IOM - Dan Air (2x Sat, 1x Sun)
JER - Dan Air (1x Sat, 3x Sun)
LGW - Dan Air (2 daily on weekdays, 1 daily on weekends)
LHR - BA (5 daily weekdays, 3 daily weekends)
MAN - Dan Air (2 daily on weekdays)
SVG - Dan Air (1 daily on weekdays)
Scheduled flights were only Britain, Ireland and Norway - a far cry from today.
2 flights a day to Bournemouth stood out for me. Double dailies to GLA and MAN too.