Thanks for all your replies!
Which I'm sure was the main reason his parents booked him the trip on QF not UA
That was my decicion rankourabu. Economy's bad enough, no way i was taking UA economy on LAX-MEL. However i am flying on the A380 both ways so it might not be that bad.
I do have NB status on qantas ff.
So it would be faster to walk between T4 and TBIT at LAX?
Im still not sure if my baggage will be interlined? Will i have to claim it at LAX?
Thanks,
Malcolm