Barry Sweeney, of Westerhope in Newcastle, will spend half an hour alone with the Prime Minister at 10 Downing Street on Tuesday lunch time and he hopes to highlight again the urgent need for his son’s body to be identified.
Liam, 28, had been travelling on the Malaysian Airlines flight from Amsterdam to Kuala Lumpa when it was shot out of the sky over Ukraine by missiles on July 17.
He died alongside fellow supporter John Alder, 62.
Mr Cameron is believed to have requested to meet Mr Sweeney personally after being moved by his bravery in speaking out about his son’s death and the ongoing violence between pro-Russian separatists and the Ukraine government.
Mr Sweeney, 52, also travelled to the Netherlands with other son Marc to witness some of the first bodies of the 298 victims being brought home in coffins into Eindhoven airport.
He had hoped that those returned on the plane would include his son Liam, but he is still awaiting news and hopes a second flight due to land on Thursday will give him the closure he so desperately needs.
“I will be getting across that we need to get them home as quickly as possible. That’s all we care about now. It would give us closure to get him buried then we can start living again,” he said.
“I’ve got nothing planned to say to him but everything I say to him will come from the heart. I’ll just talk on Liam’s behalf.
“Liam was quiet and reserved himself, not a talker like me, so I’ll be there representing him.”
Devoted Toon fan Liam was travelling to New Zealand to watch Newcastle United in their pre-season tour when he died along with fellow supporter, John Alder when their plane was shot down.
Barry has been getting regular updates on events in the Ukraine at the crash site and in the Netherlands, from his police family liaison officer.
It was the police that informed him that Mr Cameron wanted to meet him personally and he travels to London first thing tomorrow morning .
He said: “I really do feel that the British Government is trying to do their utmost for us. No one expected that this could have ever happened. It’s felt like a very slow process so far though.
“My wife and Liam’s mum can’t comprehend what’s happened. His body might not be found - that’s the absolute worst case scenario but we hope that we find him and get him home.”