I recently travelled for business to Vietnam. I flew from London to Ho Chi Minh City, then took a few internal flights to and from Hanoi and then finally flew back from Hanoi to London. I travelled 24,633km in 6 days and spent more than 30 hours in the air. I flew on 3 different aircraft types, from 2 manufacturers and with 3 different airlines. I travelled in relative comfort, on time, able to breathe at over 30,000 feet in the air. I didn’t freeze to death. I enjoyed my warm and varied food. I watched movies and hardly felt a bump the whole time.