Published on MailOnline on 20th May 2016: 20/05/201617/07/2016 by Qin Xie The true cost of flying revealed: Why airlines aren’t quite as greedy as you think they are… with profits as low as $10 on some flights The most congested islands on earth: They’re only a few miles across but some are so built up you can’t even see the sea when you’re on them