Gatwick has pledged more than £50M for local infrastructure schemes if its bid for a second runway is successful.
The Sussex airport said it would provide £46.5M to local authorities for works to support the development of up to 9,300 new homes.
It also promised £10M for local highway projects to ensure roads become no busier under the proposed airport expansion.
The pledges came in an updated case to be allowed a second runway, which follows consultation with people in the area.
Gatwick chief executive Stewart Wingate said: “A second runway would create a £90bn boost to the UK. We are determined to be a good neighbour and not lose sight of the concerns of those communities close to home.
“We’ve listened to local people and have created a wide range of pledges to deliver improvements in many of the areas that matter to them most, from new jobs and housing, to business support and noise mitigation.”
The Airports Commission is considering four options to boost air capacity in the South East.
Heathrow airport this week launched a consultation on compensation for local residents and businesses as the next stage of its bid for a third runway.