Gerardo Hernandez was remembered by blue-shirted TSA colleagues who made a procession through the airport. They were saluted by a line of police. City firefighters and members of other agencies also were on hand.
A special U.S. honor flag that has been used across the nation to honor fallen police and firefighters was flown in from Texas and escorted by an honor guard and bagpipers.
A motorcade also circled the airport's main road twice.
The flag is expected to be used at Hernandez's funeral, although no date or details of the service have been announced.
Hernandez is the first TSA officer killed in the line of duty. The 39-year-old father of two was shot in an attack Friday that wounded two other TSA officers and a bystander. All are expected to recover.
Airports across the country are expected to hold a moment of silence for Hernandez at 9:20 a.m. PST Friday - the time that Hernandez was shot.
The man authorities say opened fire, Paul Ciancia, was wounded by airport police and remained hospitalized. The FBI has said that Ciancia, a 23-year-old unemployed motorcycle mechanic, had a handwritten letter stating that he made the conscious decision to try to kill multiple TSA officers and "instill fear in your traitorous minds."
Federal agents are investigating possible ties between Ciancia and a widely circulated conspiracy theory that the U.S. government is preparing to establish a totalitarian state.
Ciancia has been charged with first-degree murder of a federal officer and committing violence at an international airport, but he will not appear in court until he is cleared by doctors.