Key facts
- London Luton Airport's expansion plans to increase capacity from 19 million to 32 million passengers per year have been cleared.
- A legal challenge by the Luton and District Association for the Control of Aircraft Noise (LADACAN) was dismissed by the High Court.
- The Court of Appeal refused LADACAN permission to appeal the High Court's decision due to late filing of their notice.
- The ruling supports the government's policy to accelerate the delivery of Nationally Significant Infrastructure Projects.
- The expansion plans include environmental monitoring and a 'Green Controlled Growth' sustainability framework.
Legal challenges to the planned expansion of London Luton Airport have been dismissed, paving the way for the project to increase its passenger capacity. The Court of Appeal refused to grant an extension of time for a late appeal filed by campaign group LADACAN, reinforcing the government's policy to expedite Nationally Significant Infrastructure Projects (NSIPs).
In December 2025, the High Court had already dismissed five out of six grounds of challenge brought by LADACAN against the Secretary of State for Transport's decision in April 2025 to grant development consent for the airport's redevelopment. The proposed expansion aims to raise capacity from 19 million to 32 million passengers annually.
The Court of Appeal's decision, published on May 21, 2026, highlighted the importance of adhering to new, streamlined procedures for NSIP appeals, which reduced the deadline for filing an appeal notice from 21 to 7 days. LADACAN's legal representatives missed this deadline, and the court found that inadvertence was not a sufficient reason to grant an extension, emphasizing that delays in such appeals are unacceptable and impact the orderly progress of vital infrastructure projects.
The ruling also touched upon the assessment of greenhouse gas emissions from inbound flights. While LADACAN argued this should be assessed similarly to the landmark Finch case, the Court accepted the Secretary of State's view that the significance of such emissions for Luton was not capable of meaningful assessment, aligning with standard national and international practices to avoid double counting.