Heathrow Airport passengers are set to face increased airfares over the next two decades to cover the initial expenses of constructing its third runway expansion. The Civil Aviation Authority (CAA) has granted approval for Heathrow Airport Limited (HAL) to recover £320 million spent on the third runway project. This decision allows HAL to raise airline charges, which are typically passed on to passengers, for a period of around 20 to 25 years.
Additionally, Heathrow West, a competing expansion plan led by property tycoon Surinder Arora, will receive permission to recoup £4.1 million spent on its proposal until November 25, when the government selected HAL’s scheme.
HAL’s ambitious project, estimated at £33 billion, includes relocating the M25 motorway and aims to be entirely privately financed. Upon completion, the expansion is expected to boost Heathrow’s annual capacity to accommodate 756,000 flights and serve 150 million passengers. The recoverable costs encompass various expenses such as planning, design, and material preparation, with future costs beyond 2027 subject to separate assessments.
Tim Johnson, the CAA’s director of consumers and markets, emphasized the importance of balancing consumer benefits with cost control, stating, “Our decision ensures that passengers only bear efficient and justified costs.” A Heathrow spokesperson highlighted the anticipated benefits of the project, emphasizing increased choice for passengers and economic growth nationwide.
British Airways, Heathrow’s largest airline, expressed concerns over early cost recovery potentially making the expansion unaffordable for consumers and undermining the project’s credibility, as indicated in a CAA report.
As Heathrow progresses with its expansion plans, scrutiny and efficiency reviews will play a crucial role in safeguarding passengers’ interests and ensuring that costs remain reasonable and justifiable.

