Airlines that use Stansted, such as Ryanair and easyJet, are up in arms at the prospect of raised charges, and non-users, such as Virgin Atlantic, are angered that they will have to pay for the airport through an effective levy at Heathrow and Gatwick. TBI, owner of London's fourth airport Luton, has now waded in to the row accusing BAA of a flagrant abuse of its monopoly position.