Heathrow has asked people's views on how £550 million compensation should be spent if a third runway gets the go-ahead.
The airport today (Monday, July 21) launched a 12-week consultation inviting people to have their say on how to use the cash.
It said £300m would go towards compensating householders whose land was needed for the new runway, with the remainder used to improve noise insulation for those living under the flight paths.
The airport is holding a series of public exhibitions across west London, between September 2 and October 9, at which people can have their say.
Heathrow 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 due to announce its verdict next summer on proposals to increase aviation capacity, including a third runway at Heathrow.
For more information about the consultation and a full list of exhibitions, visit heathrow.com/publicconsultation