Andy Burnham has declined to endorse Heathrow’s proposed third runway, despite the Government previously stating that Labour supports the expansion. He said the decision remained a matter for London and that ministers were awaiting the outcome of a consultation, renewing questions about the Government’s position and the project’s prospects.

Burnham has opposed the runway for years, arguing that aviation growth could undermine investment in northern infrastructure and that spare capacity at Manchester and Birmingham should be used instead. Heathrow’s plan involves a 3,500-metre runway and relocating part of the M25; former Chancellor Rachel Reeves targeted construction by 2035, although reports suggest 2039 may be the earliest possible completion date. Supporters cite jobs and economic growth, while climate campaigners and London Mayor Sadiq Khan oppose the scheme.