The Duke and Duchess of Cambridge are heading for home after their three-week official visit to Australia and New Zealand with baby George.
The royal couple's last day in Australia was spent in Canberra marking the 99th anniversary of the dawn landing of Anzac troops at Gallipoli.
They were farewelled by Prime Minister Tony Abbott, Governor General Sir Peter Cosgrove and his wife Lynne, Opposition Leader Bill Shorten and ACT Chief Minister Katy Gallagher.
Kate, wearing the outfit she wore to the national service, carried baby George up the stairs and into the plane, where the family waved goodbye to Australia.
The Royal family flew to Sydney where they transferred to another flight for the trip home.
Earlier in the day, the Duke and Duchess made a surprise appearance at the dawn service at the Australian War Memorial.
Prince William and Kate joined Governor-General Peter Cosgrove at the event to mark the 99th anniversary of the dawn landing of Australian and New Zealand troops at Gallipoli.
The royal couple arrived just before 5am local time for the service on what is the last day of their Australia tour.
They made a discreet entrance to the event, where thousands are gathered for the event.
William, who served in the RAF for several years, is wearing his service medals.
They had not been scheduled to attend the dawn service - an Australian and New Zealand tradition.