Originally Posted by
luvthesun
Flying GLA -LHR-MIA (thru T5). Do I have to go through security check again on arrival at T5? Will I have to discard IrnBru bottle bought in Glasgow after security?

TIA
No need on the outbound, but you'll need to go through security again at T5 when connecting back to GLA on the way back. Not sure of the logic, but no doubt there is some.