Centralisation of services such as cardiology, cardiac surgery, and intensive care in many parts of the world has resulted in the need to safely transport children with critical cardiac disease from local hospitals to specialist centres for diagnostic, surgical, and/or critical care intervention. The transport of this cohort of children, whether locally or internationally, can present specific clinical and logistical challenges. An international group of clinicians with expertise in cardiac care and critical care transport worked together to summarise current clinical practice relating to key areas of transport. This expert review covers the transport of the child with critical cardiac disease in terms of referral triage and advice, enabling optimal management of locally available resources, clinical stabilisation before transport, international air transport, transport considerations in low- and middle-income countries, and the transport of children with specific cardiac conditions. As specialist services are centralised to fewer large centres, the need for safe and timely inter-hospital transport of children with critical cardiac disease is only expected to rise in the future. The key principles outlined in this review will be helpful for practitioners in global settings who are, or might be, involved in transporting children between hospitals.