In exchange for the plea, the charged was reduced from a felony, which could have meant serious jail time.
The incident unfolded on a flight from London to Los Angeles last July. Hilton then 20, threatened flight attendants and passengers, including threatening to kill them.
The drug-fueled rant, which has come to symbolize the worst in spoiled-rich-kid behavior, ended with Hilton in handcuffs.
In one of his more infamous rants, he said, “I will fucking own anyone on this flight; they are fucking peasants,” according to the U.S. Attorney’s Office in Los Angeles.
“You need to stop squaring up to me,” he also screamed at one flight attendant, according to the document. “I am going to fucking kill you.”
Hilton tried to throw several punches, but none hit their intended targets.
The outburst caused children on the flight to cry and frighten other passengers.
Under the plea deal, he could face up to six months in jail. He must return to court Thursday (Mar. 5) for sentencing, said U.S. Attorney spokesman Thom Mrozek.
Conrad Hilton, the grandfather of Paris and her brother, founded the Hilton hotel chain, but the Hilton family no longer has any connection to the business, which is now publicly owned.