145 flying
Unijet
Try these for starters. In brackets I have put the code-share
Aberdeen - Manchester, Norwich, Groningen, Esberg
Bristol - Brussels for Brussels Airlines
East Midlands - Brussels (SN) & Frankfurt (LH)
Edinburgh - Brussels (SN), Copenhagen (SK), Leeds, Manchester & Zurich (LX)
Glasgow - Copenhagen (SK) & Leeds
Leeds - Brussels (SN)
Manchester - Lyon
Newcastle - Brussels (SN)
Then there is the Airbus contract and direct flying for BMI which I lose track of but certainly Heathrow routes - Aberdeen, Manchester and Hanover (LH) are still showing in GDS.
For arguments sake LH, SK, SN & LX find some aircraft by magic to operate some of the code-share routes (almost impossible until winter?) then the prime routes would be the ABZ ones and Manchester Lyon. On Manchester they are under pressure from flybe on Aberdeen (soon to be 5 daily) and Edinburgh although they have Lyon to themselves
The IAG option (with TUPE) seems seventh heaven, I am sure it would still be disruptive for the employees but unless LH has made a good offer to Granite in respect of Star Alliance feed for foreseeable future (I assume the financiers of Granite are not impressed),then Duo does comes to mind.
Pete