U.S. Magistrate Judge Michael Wilner said Friday he was hesitant to grant bond to Oluwaseun Noibi based on the circumstances of the case.
Another hearing will be held at a later date regarding whether the man might be released on bond.
Investigators say the 24-year-old boarded a flight in New York last Friday using an expired boarding pass with someone else's name on it. The crew didn't realize an extra passenger was onboard until mid-flight.
After arriving in Los Angeles and spending several days in the city, Noibi was arrested while allegedly trying to board a Delta flight with another expired pass.