Just a guess
I have been scratching my head for ages trying to work out why BA \ IAG want Aer Lingus for and what will they do with them?
My guess is they have identified 2 moves (apart from the usual synergies... sorry for the business speak) They will split \ separate \ divide some of their US destinations from LHR and offer connections through DUB, offering pre-clearance, quicker transit & after all you are closer to the US from DUB. The inter UK flights could free up slots to serve the "emerging markets \ more profitable" destinations.
Put A320 or A321 on DUB \ BFS routes to soak up pax and free a few more slots.
If someone from MAN \ BRS \ EDI \ GLA etc can hop to DUB & on to the US why would you want to go via LHR?
Does the lack\reduced rate of APD from DUB play any part in this? I don't know.
Last edited by carlrsymington; 3rd Feb 2015 at 22:11.
Reason: added from DUB