I’m looking to travel outbound London to Auckland (as direct as possible) and then returning via Sydney and Tokyo.

I would really prefer to travel with BA/Oneworld however trying to find a route in J seems to price at £10k+.

Would I be best breaking this into two bookings, eg LON-SYD via Tokyo with JAL and then a separate SYD-AKL return with QF?

This works perfect for the return flight AKL-SYD-TYO-LHR since I’m making stopovers, but a bit of a nightmare on the outbound since changing in Tokyo is long and might involve an airport change too.

Any tricks or tips appreciate.