In an interview with NBC News, Lonnie Snowden also said he had told US Attorney General Eric Holder through his lawyer that his son would probably be willing to return home so long as the Justice Department agrees not to detain him before trial or impose a gag order on him.
Snowden also said he wants his son to be able to choose where he goes on trial on espionage charges filed in the wake of the revelations made by the 30-year-old former National Security Agency contractor.
"At this point I don't feel that he's committed treason. He has in fact broken US law, in the sense that he has released classified information," Lonnie Snowden told NBC.
"And if folks want to classify him as a traitor, in fact he has betrayed his government. But I don't believe that he's betrayed the people of the United States."
Snowden left his job in Hawaii in mid-May and fled to Hong Kong.
Snowden, who is being assisted by the anti-secrecy organisation WikiLeaks, has applied for asylum in Ecuador. The United States has charged him with espionage.
Lonnie Snowden told NBC he fears his son might be used by WikiLeaks.
"I love him. I would like to have the opportunity to communicate with him," Snowden senior said.
"I think WikiLeaks, if you've looked at past history, you know, their focus isn't necessarily the Constitution of the United States. It's simply to release as much information as possible.
