Southampton Airport is pushing ahead with major expansion plans which could double the number of passengers travelling through the airport.
Bosses will submit a formal planning application to the local authority, following a public consultation.
But campaigners say it would increase noise pollution and damage the environment.
Under the plans announced last year, the runway would be made longer, allowing more flights to travel to more destinations.
The terminal would also be expanded, with 4,000 extra parking spaces being built.
Airport executives predict that flight numbers would increase from just over 39,000 a year now, to more than 50,000 in ten years - reaching 58,000 by 2037.
Our ambitions to grow the airport to provide more choice, more connectivity for passengers, are really taking shape now."
Hundreds of people took part in a major consultation on the plans and the airport say it has taken into account concerns raised.
But not everyone agrees with the plans, with some worried about the affect it could have on their neighbourhood and the environment.
I'm appalled actually by the potential effects on the whole of Southampton...the expansion plan is really going to have a major effect on a lot of people."
The airport says it's due to submit plans to the council later in the summer.