Join Date: Oct 2007
Location: Tasmania, Australia
Programs: M&M SEN, Amex Plat, Marriott, HHonors & Accor Gold, Velocity Silver, Qantas Bronze
Posts: 3,813
Your LHR flight may not be available to TG agents in SYD yet, even if it was on single PNR. Since it is different alliance and on two PNRs, I would not expect them to be able to issue your ex LHR boarding pass... Your best option is OLCI, but beware of delays and possibly missed connection...