Evidence indicates that lower levels of obesity among school-age children can be achieved through active school travel modes which include walking. This research aims to empirically investigate the explanatory potential of the Ecological and Cognitive Active Commuting (ECAC) model to explain walking to school behaviour among Queensland children. The results from an online survey of 537 carers in Queensland, Australia indicate that the ECAC explained 53.4% of the variance in walking to school. Distance to school moderates the associations among walking to school behaviours, perceived risks, and social norms. Data indicates that changing carers’ social norms and lowering the perceived risks carers associate with walking to school will increase the incidence of walking to school in Queensland.