A method and system for automating airline procedures, used is surveying passenger and checked baggage weights. A fully loaded aircraft is automatically weighed. A processing means subtracts weight values, including: aircraft OEW, fuel-weight, crew-weights, catering-weight, and cargo-weights; leaving only total passenger and checked baggage weights remaining. Opposing algorithms are applied to segregate total passenger weight from the total checked baggage weight; and each respective total weight is further divided by the known number of passengers to determine the average passenger weight, and the known number of checked bags to determine the average checked bag weight. Repeating these procedures for numerous flights, increases frequency of the automated survey process to a daily accumulation, to further refine to more precise average passenger weight and checked baggage weight; categorized by the day of the year, time of day, size of aircraft; and departure vs. destination cities.