Once you have checked in you can change your seat via the app for each segment individually and thus have different seats for each leg.I'm flying QF1 next week all the way through from SYD to LHR. Is it possible to select different seats for each segment, or will I need to ask at check-in or in the lounge? Looking at ExpertFlyer, there is more availability on the SIN-LHR segment, but I online I appear to only be able to select seats based on availability across both segments.
Similarly, how do upgrades work on this flight? Assuming it's possible to be upgraded on one segment but not the other?
TIA