"Over 30,000 people attended the event, including the leadership of the Defense Ministry, representatives of the law enforcement bodies, clergy, relatives, schoolmates," the Interior Ministry's statement read.
READ MORE: Former US Air Force Medic Tears Up Recalling Story of Russian Su-25 Hero (VIDEO)
Alexander Gusev, the acting head of the Voronezh Region, and Viktor Bondarev, the chairman of the Russian upper house's Defense and Security Committee, delivered the eulogy at the funeral, the statement added.
On February 3, the Russian Defense Ministry announced that the Russian Su-25 piloted by Filipov was downed by a man-portable air defense system operated by militants during an overflight of Syria's Idlib de-escalation zone. The pilot ejected from the plane, landed in an area controlled by Jabhat al-Nusra terrorist group (banned in Russia) and fought against the terrorists until his death.