Former Korean Air executive Heather Cho was given jail term in February after she forced a plane to return to the gate in New York on December 5, 2014. She went fumed over the way she was served nuts.
Popular as nutrage, the case prompted outrage and ridicule, BBC reported.
A court in South Korea on Friday court ruled she did not cause a change in the flight path so she should serve a suspended sentence.
It gave Cho a reduced sentence of 10 months and suspended the prison term for two years.
Cho, also known as Cho Hyun-ah, was a vice-president of Korean Air and daughter of the company's chairman.
She confronted both the flight attendant who served her and chief steward Park Chang-jin about the presentation, at one point jabbing Park with a service manual.
Cho then ordered the plane, which was taxiing at JFK Airport, to return to the terminal to offload Park.