Russia’s civil aviation authority earlier this week said Prigozhin, along with some of his top lieutenants, were on the list of the passengers and crew members on board the plane.
Prigozhin, 62, was killed two months after he mounted a day-long mutiny against Russia’s military that President Vladimir Putin decried as “treason”.
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The Kremlin cut a deal with Prigozhin to end the armed revolt that allowed him to walk free without any charges levied against him.
The brief uprising posed the biggest challenge to Putin’s authority of his 23-year rule.
