Heathrow Expansion to Raise Passenger Fares: £320 Million Costs to Be Recovered

The UK Civil Aviation Authority (CAA) has approved Heathrow Airport's request to recover early costs associated with its planned third runway expansion project from passengers. Under this ruling, Heathrow Airport Limited (HAL) will be able to recoup £320 million spent on the third runway proposal during 2025 and 2026 through higher charges levied on airlines. Airlines are expected to pass these additional costs directly onto airfares, meaning passengers will face increased charges for the next 20 to 25 years.

The CAA's final decision covers the planning and design expenses incurred by Heathrow for its expansion plan, including the preparation of materials to support a future Development Consent Order (DCO) application, which is essential for major infrastructure projects. According to the ruling, the maximum airport charge per passenger will increase by approximately 15 pence in 2028, projected to rise to an estimated 30 pence in subsequent years. Heathrow West, a rival expansion scheme, was also authorized to recover around £4.1 million for its expenditure up to November 25, when HAL's proposal was announced as the government's preferred option.

This development will directly impact the cost structure of airlines and ultimately increase travel expenses for consumers. British Airways (BA), the largest carrier operating from Heathrow, had previously warned that HAL's early cost recovery risked making the expansion “unaffordable for consumers.” Airlines have repeatedly complained that Heathrow has the highest charges of any airport in the world. Following the announcement, shares in International Consolidated Airlines Group SA (IAG), BA's parent company, were down 1.7% in London.

The British government aims to complete the Heathrow third runway expansion by 2035 to enhance the country's global connectivity. However, the costs and environmental implications of such large-scale infrastructure projects are frequently debated. Tim Johnson, the CAA's director of consumers and markets, stated that their decision strikes a balance between supporting the delivery of benefits to consumers through timely progress on Heathrow expansion while protecting them from undue increases in costs. Johnson emphasized that the costs are capped, independently scrutinized, and subject to efficiency reviews.

Moving forward, a separate regulatory process will be conducted to determine arrangements for costs incurred from 2027 onward. The government had launched a consultation on its Heathrow expansion national policy statement last month. The overall estimated cost for the expansion project is significantly higher, with some projections ranging between £33 billion and £49 billion. This situation will bring long-term financial implications for both airlines and passengers, continuing to shape the competitive dynamics of the UK's aviation sector.