A control system for elevators is provided with a landing call registration device provided at each of landing floors so as to be operable thereat, a landing call automatic registration portion for setting that one of the landing floors at which the landing call registration device is operated as a car call floor and registering a car call to stop one of cars at the car call floor, a response selection portion for selecting that one of elevator apparatuses which responds to a registered car call as a selected elevator, a passenger traveling time period calculation portion for setting that one of elevator doorways of the selected elevator which is provided at the car call floor as a selected doorway and calculating a passenger traveling time period corresponding to the selected doorway, and an opening/closing control portion for controlling the opening/closing operation of the selected doorway based on information from the selected elevator and information from the passenger traveling time period calculation portion. When the selected doorway is already in a door-open state at the time of registration of the car call, the opening/closing control portion continues to hold the selected doorway in the door-open state until the passenger traveling time period elapses after registration of the car call.