Originally Posted by
docbert
The SFO flight leaves later than the LAX flight - UA should be able to change you on to that.
If you're actually headed to LAX that might not be ideal, but if you're connecting then it's probably a good option.
2 hours 15 is tight, but it's enough if nothing goes wrong. In SYD you'll get priority checkin/immigration/security so you'll get through the entire process fairly quickly. The biggest issue is going to be the 60 minute baggage cut-off, but realistically if you're in F and a little late they should still make it work - and the check-in desks will still be open as they stay open for the SFO flight.
Your only hurdle is reaching SYD checkin 60 min in advance or so. If you have enough time, UA will let you walk through immigration and security with the priority pass and to the gate. If there's little time, an airport employee will probably escort you through immigration / security and to the gate, along with any NRSA passengers.
NRSA passengers are escorted every time, as they are only cleared by the gate once the flight has more or less completed boarding. Until then, they and their luggage are held at checkin.