If Luton did take in diverted aircraft they would no doubt be on the ground for a lot longer as passengers would need to be bussed in from other airports. Also the handling agents would need to borrow staff from other airports to meet the demand. Luton would also suffer from cancelled flights as internal flights to Scottish Airports would be cancelled. The exotic aircraft, if any, would probably be Ryanair and easyjet aircraft that should have operated into Stansted.