Please be aware that gastric balloons are a sub-speciality treatment, and expertise in the care of a balloon is not necessarily widespread. Despite the low risk of complications, it is recommended that overseas travel is not pursued while you have a balloon as expert medical care may not be available and travel insurance will consider the balloon a ‘pre-existing condition’. The balloon is safely able to tolerate changes in altitude (eg. air travel), although transient bloating or cramping may be experienced.