Does address on flight ticket and in passport have to match?

It's rather obvious that the names have to match, but what if the addresses don't?

The story:
I am a german citizen working in the UK. I hold a valid german passport and a Working Holiday Visa for Australia (valid for 12 months). When I booked my flight from London to Australia over the phone a couple of weeks ago, I automatically gave my UK address, because it is my current residential and billing address. However, by the time I fly to Australia, I will, of course, have left this address and my workplace, and what's more, it is obviously not the same address as in my passport.
The only thing that "connects" me with both addresses is the fact that I noted the UK address during the visa application, so that it is shown on the details as my "current postal address".

Is that "connection" enough for the airport authorities to allow me to board, also on the return flight after 12 months? Do they look at the address at all?
Is it usually a problem to have an address on a flight ticket changed by the seller?

Thanks for your help.