what is the age to travel from the UK to Australia without parent permision?

im 16 years old i moved to the uk recently and am trying to travel back to australia without my parents permission. is this possible?

Yes, you can actually From Uk to australia I'm sure it would be fine. I still suggest you check with the airlines you are flying with. 16 years old is old enough to live on your own of course you can fly own your own. I flew on my own at like the age of 7 or 8 to Turkey.

18.
most airlines these days ask you for a letter of permission from a parent.

18

about 20 20