Actually ilana in this case I think they would fly you over to the UK on duty travel, because I would expect training would be done in Sydney - Therefore you would have already commenced employment with Qantas and because you are "away" from your base (ie LHR) they would fly you to London after completing your training course. It is possible that for the same reason, you would be paid a daily cash allowance and accommodated during training in accordance with the QCCUK (ltd) work agreement. Please ask about this stuff during the interview process.
I expect that there are a number of reasons why they are holding recruitment sessions in Australia for LHR base, including:
- lack of suitable applicants in the UK
- the desire to increase Australian representation in the base ( I once operated a flight out of LHR and I was the only Australian on a crew of 16)
- lack of resources to hold recruitment in LHR (ie all crew are on line flying)
- lack of resources to hold training schools in the LHR training centre.