The body was retrieved from a Tui Airways flight which arrived at the Sussex airport earlier this month after a journey of around five-and-a-half hours.
Sussex Police said: “Police were called after the body of a man was found in the undercarriage of an aircraft at Gatwick airport, arriving from Gambia, at about 4am on 7 December.
“Officers are investigating and a report will be prepared for HM Coroner.”
A Tui spokesperson told TTG it would not comment "as it is a police matter".
