You can travel with a child on the same plane but in different cabins provided you bear in mind certain conditions:

The child must be over 5 years old. For air safety reasons, if the child is under 12 years old they will be treated as an unaccompanied minor (UM) and you will therefore have to book the Unaccompanied minor service. We will therefore accept responsibility for their transport but you will be responsible for their health, well-being and conduct. We recommend that you book this service well in advance because there is a limited number of seats available for UMs.

If the child is 12 or older, there is no special procedure. You can make an individual booking in the desired cabin.