With paramedics unable to revive him at the scene, Horacio died at his home in Progreso, Argentina, three months after his son was killed in a tragic plane crash.
"When the body was found he thought the case would be closed - but all the news that came to light about the pilot was very hard", Mayor Julio Muller said. "When he left his home, he had already died", Mr Muller said, according to local media reports.
58-year-old Horacio Sala, died of heart attack after "never getting over son's death" in plane crash just three months earlier.
Speaking in early February, former truck driver Mr Sala had told Argentine TV: 'I can not believe it.
"At 5 o'clock in the morning, the lady, his wife, rang me and she was very upset".
"When the body was found he thought the case would be closed - but all the news that came to light about the pilot was very hard".
He described his son as "small town humble boy", adding: 'He was a lad who always fought for what he had'.
Emiliano's body was eventually discovered on February 8, after a private rescue team took over the search for the missing aircraft from authorities, but Ibbotson's was never found.
Horacio said the discovery was a "nightmare", saying: "I can not believe it".
Tagging himself at Nantes Airport, where he and Sala departed from, Mr Ibbotson wrote in a comment to a friend: "Was not to (sic) bad when I got there but I'm a bit rusty with the ILS, in France now, I'll pop and see you when I get back, your turn to buy coffee".
Horacio's wife Mercedes and daughter Romina made visits to England during the desperate search.