A system and method for monitoring passengers during boarding or disembarking of a passenger carrier is provided. This includes providing a passenger monitoring system at a gateway area for boarding or disembarking of a passenger carrier for a designated carrier event. The passenger monitoring system may include a passenger data collecting device, an instruction input device, a video monitor display device and a data processor that is in communication with a remotely located central database containing stored carrier and passenger data for the carrier event. Passenger boarding or disembarking data from at least one passenger is collected during boarding or disembarking operations at the gateway area with the passenger monitoring system. The stored carrier and passenger data is updated with the collected data. The stored carrier and passenger data is displayed on the display device of the passenger monitoring system upon inquiry instruction input into the instruction input device.