A New York woman has been sentenced to four months in prison for a flight rage incident aboard a flight from Dallas to Los Angeles last year that had to be diverted to Phoenix.

US prosecutors said Kelly Pichardo and another first-class passenger engaged in intimidating behaviour on the flight and both women had to be removed from the plane after it landed at Phoenix Sky Harbor International Airport on Feb. 24, 2021.

Authorities said the women each assaulted a passenger during the flight and used racial slurs when a male passenger asked them to stop.

Pichardo also allegedly spat at the man when he tried to record the altercation.

The case was investigated by the FBI and Phoenix police and the two women were indicted for disorderly conduct for verbally and physically assaulting other customers and flight crew members.

Prosecutors said Pichardo, a 32-year-old resident of the Bronx, has been ordered to pay nearly $9,200 restitution to American Airlines as a result of the altercation.

They say Pichardo also will serve three years of supervised release following her prison sentence.

The other female passenger involved in the incident has pleaded guilty and will be sentenced in November.