A radiation imaging system comprising a radiation imaging apparatus and a control apparatus configured to control the radiation imaging apparatus, the control apparatus comprising: a control unit configured to control display of an imaging enable screen that enables the radiation imaging apparatus to perform imaging; an operation detection unit configured to detect operation by an operator; and an inhibition unit configured to inhibit a transition to another screen other than the imaging enable screen when the operation detected by the operation detection unit while the imaging enable screen is displayed by the control unit is operation other than operation for finishing a radiation imaging examination.