I cant see Glasgow or Edinburgh working, Ryanair has got both of those well covered really, surely you cant fill a B737 to both of these?
To get from PIK to Edinburgh City Centre takes:-
- at least a 1.5 hour by car (with added car hire costs) or;
- at least 2 hours by train with at least one change and a trek between Glasgow Central and Queen Street
OTOH Edinburgh City Centre is around 15 minutes by taxi from EDI. As a frequnt (leisure) traveller between Bournemouth and Edinburgh I almost always take BA or BE from SOU to EDI. The only time I have taken FR was when the fares were so low it was laughable. Add to that that we needed a car while in Edinburgh then PIK made sense.
BA and BE fly a lot of people between SOU and EDI. So long as any carrier who starts a service to EDI offers a twice daily rotation with sensible times that will also suit business travellers, then I think they will be on to a winner.