Managers at Lydd Airport say they will waste no time in pressing ahead with upgrading the site.
Their £25m investment plans include the construction of a 294m runway extension and a 150m starter extension plus a new terminal building capable of handling up to 500,000 passengers a year.
Lydd Airport Executive Manager Hani Mutlaq said the Government's decision was a "victory for common sense and for the people of Romney Marsh.
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Patchy rain tonight ahead of another cloudy and breezy day tomorrow. Rain and stronger winds arriving from the west tomorrow evening.
Staying cloudy with patchy rain tonight. Rain and stronger winds arriving from the west tomorrow evening.
Cloudy and breezy with rain arriving from the west later.