To benefit from British Airways' offer, buy your child's ticket straight from the airline and specify that you want UM service when making the reservation. Pay any service fees that may be necessary. When your child arrives at the airport on the day of the trip, make sure they have all the necessary paperwork and meet the age requirements for UM travel. British Airways Unaccompanied Minor Policy on British Airways staff members will help and supervise your child throughout the flight until they are securely turned over to the appointed guardian at the destination.