Emirates, British Airways, United and Qatar will soon (or already do) offer free internet at altitude Sign up to Simon Calder’s free travel email for expert advice and money-saving discounts Get Simon Calder’s Travel email Get Simon Calder’s Travel email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice For some passengers, a long-haul flight comes as a welcome time to disconnect in the cabin. Others – business travellers