The couple and their son were pictured leaving Canberra yesterday, before heading to Sydney and catching a plane to the UK - and all eyes were on gorgeous George!
Holding him on her hip as they prepared to board the plane, the Duchess of Cambridge smiled as George wriggled around in her arms.
The tot looked cute as a button, wearing a knitted red cardigan over his romper suit - to keep the chilly Canberra wind off - and navy T-strap shoes.
Before climbing the ladder to their private plane, Kate and William had said goodbye to Australian Prime Minister Tony Abbott and his fellow dignitaries. But George didn't seem hugely impressed.
The nine-month-old future King almost looked disgruntled and kept looking away, which seemed to make Kate laugh.
Prince William and Kate have spent just over a week touring Australia, following a week long trip around New Zealand.
After landing in Sydney and enjoying a walk along the beach, William and Kate took George to the zoo.
They also visited bushfire victims in the Blue Mountains before heading to the Northern Territory to see Ayers Rock - or Uluru, as it is traditionally known.
Earlier this week, Kate and William travelled to Adelaide, where they had a go at DJing before finishing up in Canberra.
The trio's flight back to the UK was scheduled to take around 22 hours, and William admitted that he wasn't overly excited about the journey.
The Duke was overheard saying that George can be a bit "grumpy" on planes. Oh dear!
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