Originally Posted by
RichardInSF
At SFO, to connect to the SYD flight you won't have to go through security again. At LAX, it will depend on whether the flight leaves from the UA terminal or TBIT. If it is TBIT, you will need to go through security a second time. I am sure someone else on this forum will know which.
Updated info: The T4-TBIT connector is now open, so if arriving on UA, one can walk airside all the way to TBIT.
Behold!
(Disclosure per FT rules: My video for AirlineReporter)