I survived 28 hours in a plane, but finally made it to South Africa. I took what may be the longest possible route from Buenos Airs to Cape Town; first I flew to Doha, Qatar (18 hours) and then from Doha down to Cape Town (10 hours). I had a four hour layover in Doha to stretch my legs and get some coffee, so I was able to fight off the deep vein thrombosis.