Heathrow’s third runway has long ceased to be merely an infrastructure project. It has become a symbol of Britain’s inability to make a major and politically uncomfortable decision, take responsibility for it and then actually implement it.

The latest episode in this saga came at the end of September, when British Prime Minister Andy Burnham, speaking to the BBC, declined to give his direct backing to the third runway, saying that Londoners first needed to have their voices heard and that the outcome of the consultation process should be awaited. At the same time, Heathrow announced yet another public consultation, scheduled to run from October 27 to December 22, 2026.

There is nothing inherently wrong with involving local communities in a project of this scale. The problem begins when consultations, reviews, assessments and political reconsiderations become substitutes for actually making a decision. And that is precisely what has been happening with Heathrow for decades.

The current debate over the third runway can be traced back at least to 2003, when the British government of the time backed a third runway at Heathrow in its Air Transport White Paper. In 2009, the government concluded that the conditions for its construction had been met, only for the new government elected in 2010 to reject the project once again. The Airports Commission, established in 2012 specifically to identify a long-term solution to Britain’s airport capacity problem, recommended a third runway at Heathrow again in 2015. The government formally backed the project once more in 2018, only to find itself, several years later, practically back at the starting point.

So this is not merely a 20-year saga. Twenty-three years have passed since the 2003 White Paper, while British parliamentary sources note that the issue of expanding airport capacity in South East England has been on the political agenda since the early 1990s.

Today’s hesitation is particularly difficult to understand given that the same country was saying almost exactly the opposite in January 2025. At the time, the government formally announced its support for a third runway, arguing that it could increase international connectivity, trade and investment while potentially supporting more than 100,000 direct jobs. A year later, consultation documents published in June 2026 once again referred to the potential for more than 60,000 new local jobs. These are, of course, estimates and projections rather than guaranteed economic outcomes, but it is striking how quickly the argument for economic growth becomes less decisive once politicians have to move from issuing statements to making an actual decision. And that brings us to the heart of the problem.

No reasonable person would argue that noise, air quality, climate targets or the quality of life of people living around Heathrow should simply be ignored. But environmental protection and the interests of local residents cannot become an endless political alibi for avoiding a decision on infrastructure of national importance.

Heathrow is not a small regional airport whose expansion would merely benefit the local tourism sector. It is the United Kingdom’s principal international hub and one of the country’s most important transport gateways. Even the British Parliament’s Transport Committee highlighted its unique role in connecting the United Kingdom with the rest of the world a decade ago.

If the government believes that noise, emissions or the impact on surrounding communities are so significant that Heathrow should not be allowed to grow, then it should say so clearly and abandon the third runway. If, on the other hand, it believes additional capacity is necessary for economic growth, connectivity and national competitiveness, then it should make that decision and proceed with the project while implementing appropriate protection and compensation measures. The worst possible outcome is precisely this position somewhere in between, because the status quo also comes at a cost.

Restricting capacity at one of Europe’s largest hubs does not mean that demand for air travel will simply disappear. Some traffic may shift to competing European or Middle Eastern hubs, some potential new routes will never be launched, and the shortage of capacity will continue to restrict Heathrow’s long-term growth. At that point, the question is no longer simply how many decibels an aircraft produces over west London, but how much economic value the country is consciously choosing to leave unrealised.

The contradiction becomes particularly obvious when a government simultaneously claims that it wants stronger economic growth and greater international connectivity while remaining unable, for decades, to resolve one of its most important infrastructure projects.

Of course, residents of areas affected by the expansion have every legitimate right to demand that their interests be protected. For some, a new runway would mean losing their homes or experiencing a significant change in their quality of life. That is precisely why it would make far more sense to discuss generous property acquisition schemes, relocation packages, sound insulation and other forms of compensation than to reopen, once every decade, the fundamental question of whether Heathrow should be allowed to expand at all.

To put it somewhat less diplomatically, perhaps a significant portion of the political energy and money spent over the past few decades on studies, commissions, consultations and yet more studies would have been better spent actually addressing the problems faced by the people directly affected by the expansion.

Those who would have to leave their homes because of the third runway should be offered terms that ensure relocation does not represent a financial sacrifice. Those who remain should receive appropriate protection from noise. That, naturally, costs money. But decades of indecision also carry a price – it simply does not appear as a single line in the national budget.

In an almost satirical reading of the entire situation, residents around Heathrow may indeed sleep a little more peacefully thanks to restrictions on the airport’s development. The question is whether they will be equally satisfied in the long term if the same policy leaves their country less connected, less competitive and economically weaker.

The British government has already set a target under which the third runway could become operational by 2035, with a planning decision expected by 2029. If the process once again descends into political hesitation, repeated reconsideration and endless consultation, 2035 could easily become just another year in a long chronology of missed deadlines.

In the end, Heathrow’s third runway is no longer simply an aviation issue. It is a question of whether one of the world’s largest economies is still capable of building a major infrastructure project when that project cannot satisfy absolutely everyone. After more than two decades of debate, it is difficult to argue that Britain lacks information. What it lacks is a decision – precisely the one thing that, it seems, no government since the 1990s has had sufficient political will to make.

Perhaps it is finally time for someone to break with decades of hiding behind the veil of “political correctness” and start making decisions in the interests of the very people politicians have supposedly been trying to protect all along.