Paul Anthony Ciancia, 23, entered the plea for all 11 felony counts, including murder and attempted murder, in a Rancho Cucamonga, Calif., court, KABC-TV, Los Angeles, reported.
Ciancia is accused of killing Transportation Security Administration Officer Geraldo Hernandez, 39, and wounding three other people, in the incident at Los Angeles International Airport, the Los Angeles Times reported.
Ciancia, a New Jersey native living in California, had a documented hatred of TSA agents and allegedly targeted them in the attack, authorities said.
He was arrested following a gunfight with police in which he was shot four times, and was hospitalized for two weeks before he was released into the custody of the U.S. Marshals Office.
His trial was scheduled for Feb. 11 in Los Angeles federal court. Prosecutors have not announced whether they will seek the death penalty if Ciancia is convicted.