Expansion of Heathrow and Gatwick are the shortlisted options being considered by a government-backed commission into airport expansion. In its interim report, the commission also says a new airport will be needed in the South East by 2030.
Thirty thousand people would be negatively affected by plans to build a new runway at Gatwick Airport, the Gatwick Area Conservation Campaign said.
The campaign group have drawn up a list of possible flight plans, should the project be given the go ahead.
The plans were made in consultation with air traffic control experts, as airports are currently not required to publish flight paths before the runways are built, Brendon Sewill, Chairman of the campaign said.
The plans were made in consultation with air traffic control experts, as airports are currently not required to publish flight paths before the runways are built, Mr Sewill said.
Mr Sewill said a new runway would mean an extra thirty thousand people would be afflicted with noise pollution, bringing the total across the area to 42,000. He said:
"We are not surprised as we always expected matter into focus, but we know we are in for a big battle.
"Howard Davies says we don't need a new runway until 2030 and the plans are not until 2040, but we need to fight like mad to stop a decision that will afflict the whole of Sussex, and much of Surrey and Kent.
"We are agree with national environmental organisations that any new runway anywhere is not compatible with the national enviromental policies.
"Also, the main concern about a new runway in Gatwick is that it would mean the inwards migration of a large number of people from the rest of UK, or from the EU with the need for 40,000 new houses, according to West Sussex County council."
Some believe today's report did not draw firm conclusions in order to avoid a politically divisive issue before the next election.
Expansion of Heathrow and Gatwick Airports are the shortlisted options being considered by a government report into airport expansion.
Heathrow is the third busiest airport in the world in terms of passenger numbers. It carried more than 69 million people in 2011.