French model Berenice Schkair, 26, shared the defiant post on her Instagram story after a body was recovered from the wreckage of the plane which crashed with him on board.
The post was a picture overlaid with the words: “Forever close to you… Never give up #justiceforemilianosala.”
In another Instagram post Schkair shared a solemn picture of a white rose by the seaside in a poignant tribute to the striker.
She shared the posts as investigators attempt to identify the body found inside the plane wreckage 21 miles off the coast of Guernsey in the English Channel.
The body is being taken to Portland to be passed over to the Dorset coroner for examination, the Air Accidents Investigation Branch (AAIB) said on Wednesday.
Investigators are yet to confirm if the body is that of 28-year-old Sala or his pilot David Ibbotson, 59.
Schkair, meanwhile, has been critical of the way in which Sala’s travel arrangements were handled before he boarded the flight from Nantes, France to Cardiff on January 21.
She has blamed his “horror” disappearance, which she believes was an accident, on a “series of irresponsibilities” in an interview with Argentine media outlet Infobae.
During the search for Sala, Schkair raised eyebrows by suggesting “the football mafia” was involved in his disappearance in a social media post.
She said Premier League strugglers Cardiff City, who signed Sala for a club record £15 million to bolster their attack, were partly to blame for not providing him with a translator.
She said: “Emi doesn’t speak English!”And they left him to get a flight with a pilot who only spoke English who they had not checked out.
“If they had looked after him, they would have provided someone from the club to help him. It’s all very strange.”
When asked what she would do if Sala does not show up, she told Infobae: “Find the person responsible, they need to carry out an investigation and not leave everything covered up.
“If something that terrible happens, the family are going to have to fully investigate and knock on a lot of doors.”
The remains of the plane were discovered on Sunday evening.
The remains of the aircraft were tracked down by a team co-ordinated by ocean scientist David Mearns, who has located some of the most elusive wrecks in the world.
Mearns – known as the “Shipwreck Hunter” – and his team located the aircraft within two hours of commencing their search.