Heathrow Third Runway Project Pushed Back to 2039

Plans for a third runway at Heathrow Airport have been delayed, with the projected completion date now set for 2039, a four-year extension from the previously anticipated 2035 deadline. Airport officials informed ministers that the original timeline was "too ambitious."

The expansion project, once championed by former Chancellor Rachel Reeves as a key to economic growth and job creation, faces continued debate. Reeves had previously stated in January 2025 that the runway would "unlock further growth, boost investment, increase exports, and make the UK more open and more connected," estimating it would create 100,000 jobs. Current Chancellor John Healey, who supported the project as Manchester Mayor, has also stated that "the economic case stacks up and will help bring growth."

However, Prime Minister Andy Burnham has expressed reservations, reportedly telling colleagues he "never been in favour" of the scheme. While he has indicated being more "open minded now," he has also emphasized that the "voice of local areas must be heard first in this debate." Burnham has a history of opposing the expansion, previously calling it a "model for an ever-overheating UK economy" and warning it could divert investment from northern infrastructure. In 2018, he suggested utilizing spare capacity at Manchester and Birmingham airports instead.

Heathrow, which recently lost its title as the world's busiest airport to Istanbul, will now focus on securing planning permissions by 2029, with runway construction possible thereafter. The planned expansion aims to increase Heathrow's capacity to 756,000 flights and 150 million passengers annually.

Proposals for a third runway at Heathrow have been discussed for decades, first emerging in 1946. The project has consistently faced opposition from environmental campaigners and political figures, including London Mayor Sir Sadiq Khan and Foreign Secretary Ed Miliband.

A consultation on the draft Heathrow Expansion National Policy Statement concluded recently. A final version is expected to be presented for a parliamentary vote, potentially in January 2027, after an initial plan for this autumn. If approved, a tender process could ensue, potentially pitting airport hotel magnate Surinder Arora against Heathrow for the construction contract. Legal challenges from environmental groups are also anticipated.

A Department for Transport spokesperson acknowledged that the timeline had always been "ambitious" and stated that they would "continue to work with promoters, including Heathrow, and all other stakeholders at pace to ensure the right framework is in place." The GMB union's General Secretary, Gary Smith, urged an end to the prolonged discussions, emphasizing the need to "get cracking" on a project that could create over 100,000 jobs.