The Lydd Airport Action Group has been campaigning against the expansion of the airport.
Louise Barton told ITV News it would continue to fight the plans and expected the proposal now to be embroiled in years of legal wrangling.
"The whole nuclear safety argument has been completed disregarded," she said.
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James Wright has Monday's forecast for the east of the ITV Meridian region.
James Wright has Monday's forecast for the west of the ITV Meridian region.
Santa is not the only one who has an epic journey to make on Christmas Eve. A Sussex man is to cycle 500 kms to raise money for charity.