Radio station Europe 1 reported that the British man, named only as John, confessed his scheme to police after he was arrested on April 25th.
Airport security cameras captured him stealing bags on nine occasions since November 2011.
The Nigerian-born man said he favoured the airport's terminal C as it is used for flights to Africa, allowing him to blend in easily.
Among the items he stole was a suitcase containing €70,000 ($89,000) belonging to a former prime minister of Chad.
He also made off with items belonging to the owner of a top Parisian fashion house.
The man would roam around the corridors within the airport, sometimes spending a night in an airport hotel, before catching a return flight early the next morning.
He has been sentenced to a year in prison by a court in Bobigny.