by a normal aeroplane?
ive had a look on the maps thing and its not far.
my maths is rubbish but i think 2 hours over australia - 2.5, 3 hours over the water bit and then 1, 1.5 hours in vietnam.
7ish hours but im just guessing :p
Don't forget stopovers ... sometimes you spend more time in airport than on the plane, lol
oi bugger off you it took me ages, minutes to work that out lol
Roughly 8.5 to 9 hours.