The connection in BKK gives a 2hr turnaround for the QF aircraft, this keeps the 744 on the SYD-BKK-SYD route daily until a maintenece stop is required in SYD
BA cannot realistically depart LHR later than 22:00 or BKK much earlier than 00:20.
Most business travellers would give SYD-LHR via BKK on QF/BA a miss, but you may see some good fares on red-e-deals up the back.
Can BKK sustain a 744 with O&D traffic, probably not.
I can see SYD-BKK going to a QF A330 like AKL-LAX did, then eventually to JQ only to BKK.
|