Chris Dawson, the husband of missing Northern Beaches woman Lynette Dawson, has been arrested on the Gold Coast and is expected to be charged with murder.
Dressed in a t-shirt, shorts and thongs, the 70-year-old was led off the plane by detectives and driven from the tarmac straight to Sydney Police Centre in Surry Hills, where he was charged.
Dawson is a former first grade rugby league player turned high school teacher.
NSW Police Commissioner Mick Fuller said Ms Dawson's family was relieved after being told of the arrest.
He has always denied any involvement with his wife's death and his family said in a statement they expected him to be found not guilty.
Mr Fuller said finding Ms Dawson's remains was "not crucial to finalising the matter", however investigators had not given up hope of doing so.
Speaking to Studio 10 on Wednesday, Lynette Dawson's brother Greg Simms revealed his family was "over the moon" about the arrest.
An application for bail was refused by Queensland magistrate Dennis Kinsella and Dawson was taken into custody of NSW detectives.
Dawson continues to maintain his innocence.
Paul Dawson applied for bail, promising to drive himself to Sydney for the court appearance.
Since then homicide squad detectives had gathered new evidence and it is thought the police case will in part rely on two witness statements uncovered by Teachers Pet.
She was 33 at the time.
He has said that she abandoned the family for a religious group. "It is my understanding that there were two additional statements were the byproduct of the media and the work that the media has done, but essentially the case rests on the work of Dan Pool and the Unsolved Homicide Squad".
Detectives in September dug up the backyard at the Bayview home the couple shared in the early 1980s but did not find her remains or items of interest. We have solved homicide before without identifying the body.
"I'm sure there's a hell a lot of people around Australia who are in the same situation as us in relation to a loved one going missing, but it's just one of those things you grin and bear it and we've fought to keep our sister's name out there and finally we've got some sort of justice on the way".
"There was additional evidence that was identified and that has seen the DPP make a positive decision in prosecuting an individual for the murder of Lynette Dawson", Mr Fuller said.