I changed the LAX-LHR routing to LAX-(QF)xJFK-xLHR- and the booking became via Qantas with USD4,400.00 and USD448.24:
Code:
Airline Fuel Surcharge 225.00 USD
Immigration and Naturalization Service Fee 7.00 USD
U.S. International Transportation Tax - Departure 15.40 USD
U.S. Customs Fee 5.50 USD
U.S. Animal and Plant Inspection Service Users Fee 5.00 USD
Tax description unavailable (IASE) 8.47 USD
Tax description unavailable (KKEC) 6.88 USD
Australian Passenger Service Charge 16.66 USD
UK Air Passenger Duty 59.30 USD
Tax description unavailable (KKEM) 6.88 USD
Passenger Facility Charges 9.00 USD
Tax description unavailable (WGSE) 3.54 USD
UK Passenger Service Charge 29.21 USD
September 11th Security Fee 5.00 USD
Australia Passenger Movement Charge 30.00 USD
International Arrival Transportation Tax (USA) 15.40 USD