Having recently booked this, it had to be booked as separate flights (the add on to AUK was 17.5, but in coach). The flight days through PPT changed to force a several day layover in PPT each way, and it was very difficult to book as a single itinerary due to the date line change and trying to match up flights correctly. I called into the partner desk but twice received agents who did not know where PPT was, or understand the date line situation. YMMV.