Heathrow has launched a consultation on compensation for local residents and businesses as the next stage of its bid for a third runway.
The west London airport committed in May to a £550M fund for new noise and property compensation claims if its expansion plan is backed by ministers.
The 12-week consultation, which closes on 12 October, will seek views on how the fund should be shaped and used.
Chief executive John Holland-Kaye said: “We believe our proposal to expand Heathrow is the right way to deliver the capacity Britain needs to connect to fast growing economies around the world.
“This must go hand in hand with treating those most affected by a third runway fairly. This consultation provides local people with an opportunity to let us know their views to develop the right compensation scheme.”
The Airports Commission is considering four options to boost air capacity in the South East.