Heathrow Airport has been granted permission by the Civil Aviation Authority (CAA) to recover up to £320 million spent on the early planning and design stages of its long-debated third runway project, with the costs to be passed on through higher airport charges that will likely add 15 pence to passenger ticket prices starting in 2028.
The aviation regulator's decision allows the UK's busiest airport to recoup expenditures incurred during 2025 and 2026 for the initial planning phase of the expansion. The maximum airport charge per passenger is expected to increase by approximately 15 pence in 2028, rising to an estimated 30 pence in subsequent years.
Regulator Approves Cost Recovery for Early Planning
Tim Johnson, the CAA's director of consumers and markets, confirmed that the first tranche of costs—focused on planning the expansion—can be recovered from passengers up to a maximum of £320 million. The regulator emphasized that the decision "strikes a balance between supporting the delivery of benefits to consumers through timely progress on Heathrow expansion, whilst also protecting them from undue increases in costs."
The CAA said it would implement safeguards to protect consumers from unjustified costs, including transparency and cost reporting requirements, as well as independent expert assurance to monitor cost efficiency. These measures are designed to ensure that only legitimate planning and design expenses are passed on to travelers.
The costs being recovered at this stage relate solely to the early planning and design work carried out during 2025 and 2026. How much the actual construction of the runway will ultimately add to ticket prices remains unclear and will not be determined for some time.
Rival Bidder Also Allowed to Recover Costs
In addition to Heathrow's own planning expenses, the airport will be permitted to collect up to £4.1 million in costs incurred by the Arora Group's Heathrow West, which had put forward an unsuccessful rival proposal involving a shorter runway. Heathrow can recover these costs—accumulated up to November of last year—by incorporating them into its airport charges.
The government announced in November that it preferred Heathrow's own £33 billion expansion scheme over Arora's alternative plan. The Department for Transport stated at the time that Heathrow's proposal offered the most deliverable option and the "greatest likelihood" of securing planning approval within the current parliament.
