Passengers at London Gatwick, the UK's second-busiest airport, faced long queues for toilets and closed restaurants and bars after a major water supply outage struck both terminals. The disruption followed a power failure at a treatment works serving the area.

'For people who need to go to the toilet, this isn't good.' — passenger Paul Lee

Travellers described confusion as bars and restaurants shut and waits built outside lavatories. Gatwick said it was handing out bottled water while the supplier worked to restore supplies, and that some restaurant partners had opened to provide seating.

The water company said a power outage at a treatment works had been fixed, but that water still needed to be treated before normal service resumed. Parts of Kent, Surrey and south London were also affected by low pressure or temporary loss of supply.

The airport said it was working closely with the utility to restore supplies as quickly as possible, and apologised for the disruption. For passengers due to travel later in the day, the advice was to expect continued interruption.

The episode was an unwelcome reminder of how dependent major transport hubs are on utilities that, when they fail, can ripple through thousands of journeys in a single morning.

Airports plan for security and weather, but a humble water main or power fault can unsettle operations as thoroughly as a storm. As Gatwick expands capacity, the resilience of its basic services — not just its runways — will be part of the test.

The market reaction, though measured so far, will be read closely by competitors weighing whether to follow the same playbook or wait for greater certainty.

Behind the headline number lies a structural question about how the sector funds itself, and whether the current model is resilient enough for the cycle ahead.

Investors are weighing the signals against a backdrop of tighter credit and slower growth, where even modest surprises can reset expectations for the quarter.

Rivals are watching the move as a possible template, aware that first-mover advantage in this space can be difficult to dislodge once established.

Regulators, meanwhile, are likely to scrutinise the details, mindful of past episodes where rapid expansion outran the safeguards meant to contain it.

For customers, the practical effect may be subtle at first, surfacing gradually in prices, service, and the choices available to them in the months ahead.