Originally Posted by
danger
Provided you're transiting at the same airport and on the same calendar day, I don't think there's a problem.
I actually believe that it is 72 hours at Haneda
If I am reading it correctly , it seems that there is no pre-deperutre Covid test needed to transit Japan either - so I am hoping that my analysis that nothing needed to leave AU, nothing needed to transit JP and nothing needed to enter UK is correct
If so, to me, Japan seems one of the easy transit points