Thanks for your question on Healthcare Magic. I can understand your concern. No, it is not advisable to travel with such diseases. He is having Renal failure as his creatinine and urea ate very high. And this is the reason for need of dialysis in his case. He is also having acute heart attack and fits. These willing make air travel more lethal and life threatening. If you want time shift him then shift in air ambulance so that emergency medical treatment can be provided in case of emergency in flight. Don t take him without air ambulance. Hope I have solved your query. I will be happy to help you further. Wishing good health to your father. Thanks.