Originally Posted by Opssys
From the vague memories there were a couple of Airlines using Islanders on extremely thin routes from the regional airports not served by BAS/BEA.
The only small a/c (twin prop) scheduled passenger ops at LHR in the Summer 69 timetable were:
The Autair Herald services to Dundee (Leuchars) - some direct, some via Blackpool and some via Carlisle
Ditto to Teesside - some direct, some via Hull (Brough)
Plus the Luxair F27 service to Luxembourg.
That's from the May ABC guide which didn't mention the Islanders