
Standard of services and lack of engagement among reasons cited by airlines for why they believe Heathrow’s capability is hindered
Airlines warn that Heathrow's third runway could be unaffordable due to the airport's current operational inefficiencies, poor service quality (long security lines, baggage issues, accessibility), and high charges. Airlines believe that Heathrow's regulatory model allows it to overcharge them for infrastructure improvements. They claim current conditions hinder investment and that service levels are worse than other major airports. Heathrow argues that adjustments to the regulatory model are needed but maintains that airlines and passengers receive good value.