The court also heard Cilliers had tampered with a gas cooker at the family home hoping that when his wife turned it on, it would explode.
As she lay on her hospital bed, having miraculously survived the 4,000ft fall, he could barely bring himself to acknowledge her, choosing instead to send lewd texts to his Austrian lover, Stefanie Goller.
Undated handout photo issued by Wiltshire Police of Victoria Cilliers tampered with parachute.
Cilliers, who now lives in Aldershot, has also been convicted of attempted murder by sabotaging a gas valve at the family home in Amesbury.More news: Security forces guarding nuclear missiles used LSD
Speaking outside court, Detective Inspector Paul Franklin, of Wiltshire Police, said: "The real danger with Emile Cilliers is he is cold, calculated, deliberate, and done for financial and sexual motives, and there was absolutely no consideration of his wife or anyone else, he serves his own needs and that makes him a very unsafe man".
Victoria Cilliers suffered severe injuries to her spine, and broke her leg, collarbone and ribs.
Victoria Cilliers, a highly-experienced parachuting instructor, suffered near-fatal injuries when both her main and reserve parachutes failed when she took part in a jump at the Army Parachute Association at Netheravon, Wiltshire, on Easter Sunday in 2015.
The judge added that he would have to consider the "dangerousness" of the defendant.More news: Picture of Meghan Markle as chocolate-covered marshmallow sparks fury
"His selfish motives were simple - he believed that by killing Victoria his financial problems would be solved, his army career would continue with no danger of Victoria trying to damage it, and he could continue his illicit affair with his girlfriend", said Paul Franklin, of Wiltshire Police, according to BBC News.
A member of her parachute club in southwest England said that she had been fortunate to land in a freshly-ploughed field. On two separate occasions he made serious attempts to murder Victoria.
"Physically she is well but obviously she is still traumatised".
Cilliers, originally from South Africa, will be sentenced at a later date.More news: EastEnders SPOILER: Huge Alfie Moon twist about to shock Albert Square?