Canada is repatriating four women and 10 children who have been held at least three years in Islamic State camps in northeastern Syria.
The federal government agreed in January to bring back a group of women and children, but pushed back on repatriating four imprisoned men.
Canada said it is taking steps to return the group due to "deteriorating conditions" in the camps.
It shared few other details about the repatriation.
Lawyer Lawrence Greenspon, who is representing the families, said on Wednesday the women and children were en route to Canada.
"I've talked to their various family members here in Canada and they are absolutely delighted that some three-and-a-half years after we started this process of trying to bring the women and children home, their loved ones are on their way," Mr Greenspon said.
There are no details about when or where the group will land.
It is unclear whether one woman, from the Canadian province of Quebec, and her six children are among the group being repatriated, though Mr Greenspon told the BBC that his " information is that she is not on the flight".
The federal government agreed in January to bring back a group of women and children, but pushed back on repatriating four imprisoned men.
Canada said it is taking steps to return the group due to "deteriorating conditions" in the camps.
It shared few other details about the repatriation.
Lawyer Lawrence Greenspon, who is representing the families, said on Wednesday the women and children were en route to Canada.
"I've talked to their various family members here in Canada and they are absolutely delighted that some three-and-a-half years after we started this process of trying to bring the women and children home, their loved ones are on their way," Mr Greenspon said.
There are no details about when or where the group will land.
It is unclear whether one woman, from the Canadian province of Quebec, and her six children are among the group being repatriated, though Mr Greenspon told the BBC that his " information is that she is not on the flight".