According to The Sunday Times, the royals are hoping to "woo" Canada, and boost the standing of the monarchy in the country.
The trip will be one-year-old Charlotte’s first royal tour, but old-hand Prince George will be able to show her the ropes.
The royals announced the news of their trip on Instagram back in July.
"The Duke and Duchess of Cambridge will visit #Canada in autumn. Their Royal Highnesses have been invited to visit by the Government of Canada. They will visit British Columbia and the territory of Yukon as part of their tour. The Duke and Duchess are delighted to be returning to Canada. They hold very happy memories from their visit in 2011 - their first overseas tour as a married couple. They are really looking forward to seeing other parts of this beautiful country and having the opportunity to meet many more Canadians along the way."