The British Chambers of Commerce and the TUC have put their weight behind expansion of Heathrow.

They came together today to urge politicians to support a third runway at the London hub weeks before Parliament is expected to vote on the project.

The latest independent polling by ComRes revealed strong cross-party support for expanding Heathrow, with 75% of MPs backing the project.

The political support follows backing for expanding Heathrow from business leaders and major unions – including Unite, GMB, TUC, Community and pilots’ union Balpa.

Airport chief executive John Holland-Kaye said: “Expanding Heathrow is a fantastic opportunity to secure a prosperous future for Britain. We’ll create tens of thousands of new skilled jobs, drive billions of pounds of economic growth across the country and with an affordable, financeable plan that treats local people fairly.

“With the clear support of Britain’s trade unions and businesses, our politicians can be confident it’s the right decision for Britain. The world is waiting for an expanded Heathrow and we’re ready to deliver.”

British Chambers of Commerce director general Dr Adam Marshall said: “Business communities across the UK are clear – it’s time to get on with the job of expanding Heathrow, and we are counting on our politicians to give this vital project the green light.

“Expansion will deliver business opportunities for suppliers around the UK, new domestic flights into our hub airport, bring in more overseas investment and tourism, and help British firms reach trade opportunities around the world. It’s time to crack on.”

TUC head of organisation, services and skills Kevin Rowan said: “Expanding Heathrow will unlock thousands of jobs and millions of pounds in economic benefits at a critical time for workers across the UK.

“With thousands of new jobs, a doubling of the number of airport apprenticeships to 10,000 and billions in economic benefits on offer at no cost to the taxpayer – we urge our politicians to back Britain’s workers by expanding Heathrow.”