Originally Posted by
sfozrhfco
If you look at the fare breakdown, it also just applies one way from the US to London. Returning from London, it is $121.70 for the surcharge plus the myriad of taxes and other fees. Flights leaving LON have been the bigger problem when it comes to fees.
But the OP is talking about the carrier surcharge. Is that higher for LON-U.S. than U.S.-LON? There's not much one can do about the LHR PSC, but the U.K. APD only applies when originating in LON, rather than merely connecting there.