Of those responding 96% said they would use Manston in preference to other airports.
Manston's chief executive, Charles Buchanan, welcomed the reports, by a firm called Aspect Ecology and Natural England.
Budget airline Flybe pulled out of Manston in March saying flights from Kent were not economically viable.
Facilities at Manston have been upgraded with a new executive lounge, and about 46 jobs have been created.
Manston airport in Kent could help meet aviation capacity needs in London, according to Transport Minister Theresa Villiers.
Kent County Council (KCC) wants the line extended to cut the journey time to Manston Airport from London.
Infratil announced in March it would sell its 100% stakes in Prestwick and a second UK airport, Kent Manston.
BBC: Prestwick Airport records big fall in passenger numbers
Passengers departing from Manston Airport to Schiphol in Amsterdam will be able to take connecting flights to destinations around the world.
The statement from Gatwick Airport that there will be no application for a second runway makes the Manston proposals even more important.
Thanet North Conservative MP Sir Roger Gale said using Manston as a hub for Schiphol could take business away from the UK aviation industry.
She said that another solution was needed and that "some would like to see Manston play a role in meeting our aviation capacity needs".
Mr Carter and Manston Airport's chief executive Charles Buchanan were holding talks with transport minister Simon Burns at the airport in east Kent on Wednesday.
The district council remains opposed to the move - to permit an average of two flights per night - although it does not have an ultimate veto on Manston's decision.
Charles Buchanan, chief executive of Manston airport in Thanet, said that, in the long term, building a new infrastructure would mean a major airport capacity increase could take about 20 years.
The pilot did not refer to any problems while flying the Robinson R22 in good weather on a route from Manston Airport in Kent to Fenland Airfield, near Spalding in Lincolnshire.
He said that the short term solution to the aviation capacity problem would be to develop the existing infrastructure in the south east, particularly Manston airport, which already has the ability to accommodate intercontinental flights and also has a long runway.
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