Una Due TFC
For years 13 daily had been the norm on DUB LHR, though it may have 14 rotations at a point . But more significantly there have been larger aircraft on the route 321 a plenty and in the days of 767, they put in regular appearances too.
My understanding was that EI had 2 slot pairs leased to Virgin but these had been returned and these facilitate extra flights like since BHD was added / Shannon returned. Are there other's leased out?
They also recently sold an early departure slot to BA.