An investment package for RAF Marham, worth more than £300 million, was announced by the Prime Minister during a visit to the base.
David Cameron met servicemen and women at the site on Thursday as he confirmed the cash, which will prepare the base for the arrival of the first wave of new Lightning jets in 2018.
Defence chiefs say the deal will create up to 1,000 new construction jobs and a further 700 in the supply chain.
And Mr Cameron said the station, some of whose Tornado planes are currently taking part in the international air campaign against Islamic State in Iraq, has a “very bright” future.
He said: “This is an important home for some of Britain’s key fast jets. I know how important the Tornado has been whether it’s in Iraq, Nigeria or Afghanistan and there’s a great deal of excitement about the arrival of the Lightning.
“It’s good for Marham. It’s going to remain a premier airbase. It’s good for the local area because it’s jobs and investment and there’s a lot of skills in engineering and technology which have other spin-off benefits.”
He added: “This is a clear example of how the decisions we have made as part of our long-term economic plan are enabling us to invest, creating the jobs, growth and investment that will benefit hard-working people here in Marham and across the UK.”
The announcement was made during a week-long tour of the country as campaigning intensifies ahead of May’s general election.
South West Norfolk MP Elizabeth Truss accompanied Mr Cameron on his tour of the base and was delighted by her leader’s announcement.
She said: “We have secured Marham’s future until 2040. We know how vital it is for local jobs.
“To have this as a key part of our long-term economic plan for East Anglia is fantastic.”
Mr Cameron was shown around by Wing Commander Nikki Thomas, who made the headlines herself last month as the first woman to lead a Marham squadron, and Air Commodore Dave Waddington, commander of the Tornado force.
She said it had been a “delight” to welcome the Prime Minister and the investment was great news for the whole community.
She said: “Anything where you’re talking about investment on a base is always positive when you’re based there, but I think the local area should be proud as well.”