On 1 August 2025, 270,869 passengers went through Heathrow Airport, thus breaking the record of the busiest day ever at the West London airport. Plans to expand the aviation hub are becoming more pressing than ever.
As the UK’s main intercontinental gateway and Europe’s largest aviation hub, Heathrow Airport handled 7,981,137 passengers in July 2025. While this is an absolute record for the airport, it is only slightly more than in July 2024, when 7,980,455 passengers moved through the hub. A new rolling 12-month record has been reached with 83.93 million passengers but since the start of 2025, Heathrow recorded a year-on-year growth of only 0.2 per cent.
According to airport officials, that ‘stagnation’ is due to the capacity limits of the airport. Its two runways are currently almost being used full capacity, with 480,000 to 756,000 flights per year.
“It’s that time of year when everyone is looking forward to their well-earned summer breaks, and Heathrow is proud to play our part in delivering smooth and reliable journeys. We continue to break records as Europe’s largest and most punctual hub – adding value for our airline partners and passengers. To build on this success, we’ve set out a 100 per cent privately financed plan to expand Heathrow, deliver extraordinary service, create wider and better choices for our customers, and grow the UK economy,” Heathrow chief executive Thomas Woldbye said.
Expansion plans
The airport plans an expansion in order to meet traveller demand by adding a third runway. Since January 2025, Chancellor Rachel Reeves has been speaking out in favour of the expansion project, in the hopes of boosting the British economy. The £20 billion runway project, part of a larger infrastructure overhaul, is thought to be able to secure planning consent by 2029, with the government hoping the new runway will be fully operational by 2035.
When sharing the new record numbers, the airport also went into detail about other strong points of its operations.
“Heathrow is not only Europe’s largest airport but we also remain Europe’s most punctual major hub, ahead of Amsterdam Schiphol, Frankfurt, Madrid and Paris Charles de Gaulle. We are consistently outperforming other major European and UK airports, often by over 20 per cent on a daily basis,” the airport said, adding that 95 per cent of passengers waited for less than five minutes at the security queue on the busiest days of the summer.
Moreover, despite the feared impact of President Donald Trump’s trade and immigration policy, Heathrow reported its busiest month ever as far as North American traffic is concerned. The number of passengers went up by 0,9% compared to July 2024, totalling 2,067,000 passengers, a rise mainly visible around the 4th July period. The rolling 12-month North American passenger number thus rose to 20,628,000.
