The long-awaited report into runway expansion in the south-east of England is to be published on Wednesday.
The Airports Commission’s final report will reveal whether Heathrow or Gatwick has been recommended for expansion.
The five-member panel, headed up by Howard Davies, has been considering three plans: a new Gatwick runway, a new Heathrow runway, or an extension to an existing Heathrow runway.
The decision is expected at 07:00 on Wednesday 29.