Originally Posted by
Una Due Tfc
How much extra tax revenue does the British government get from non UK residents transitting through Heathrow? How many extra immigration officers/Pilots/Cabin Crew/Cleaners/Shop Workers/Mechanics/ATC/Caterers/Fuelers/Security/Baggage Handlers/Bus Drivers etc etc are employed because of them? How much Tax do they contribute to the UK economy?
It's not just that. There is an enormous economic benefit to the whole region from being a hub location. Look at Dallas or Dubai. The transit passengers fill say half the plane. The other half gets taken by O&D passengers from the local region. Neither flow would justify the density of flights on their own, but each supports the other and then there is an economic cascade process that rises from that, because the place gets so well connected internationally.