The answer is no, airline staff are not permitted to divulge who is or isn't on a flight to members of the public. The most they can tell you, if you have the flight information, is the status of that particular flight, but they can't say who's on it. This is for security and privacy purposes.
Can you track passengers on a flight?
Log on to the airline's website and enter whatever information you have. Continental, for example, allows users to search by the flight number and date, or the cities of departure and arrival and the date. Use private trackers such as FlightStats or FlightAware to provide a backup source of information.
Are flight records public information?
As a result, flight data collected by the FAA in its air traffic control system except for military and sensitive government flights is public information.Apr 8, 2010