Originally Posted by wetrat0

Corporate contract is different from a subsidy. AA surely has corporate clients that use RDU-LHR. They used to have a revenue guarantee in place on RDU-LHR from a non-government consortium (also totally different from a subsidy), but a number of published sources and FT threads have repeatedly stated that they never had to invoke it. In other words, the flight is/was generating more revenue organically than had been guaranteed.

Certainly, I agree that any new route to LHR operated by AA from a non-hub would likely coincide with (new?) corporate contracts. It's also quite possible that they could receive incentives from the airport authority (such as waived landing fees).