London’s Gatwick Airport experienced significant disruption on Sunday, 26 July, after a water supply failure left both its North and South terminals without running water, affecting toilets, restaurants and passenger services during one of the busiest summer travel weekends.

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Gatwick Airport hit by major water outage in both terminals

Power issue at treatment works triggers airport-wide outage

According to publicly available information, the disruption stems from a power problem at a local water treatment facility serving the Gatwick area. Reports indicate that the outage interrupted the supply of potable water to the airport early on Sunday, leaving both terminals without normal tap and flushing water.

Coverage from outlets including Reuters and the Associated Press notes that the issue affected toilets across the airport, with many washrooms closed or operating on a severely reduced basis. Bars, cafes and restaurants inside the terminals also scaled back or halted service entirely because they could not access running water required for food preparation, dishwashing and hygiene standards.

Public updates from the airport and local water provider SES Water, as reported by UK media, describe the incident as a major water supply problem rather than an internal plumbing fault at Gatwick itself. The focus of the technical response has been on restoring power and pressure at the treatment works so that normal water flow can resume through the wider network.

While some areas reportedly retained limited supply or backup storage, the lack of consistent pressure meant the airport could not safely rely on its normal facilities, prompting widespread closures of toilets and food outlets across both terminals.

Passengers face closed toilets, long queues and limited services

Travellers passing through Gatwick on Sunday reported lengthy queues, cordoned-off restrooms and significant discomfort as the outage continued into the day. Social media posts cited in coverage from UK broadcasters describe customers being redirected around shuttered washrooms and searching for the few facilities still operating.

With handwashing stations and drinking-water taps unavailable in large parts of the terminals, reports indicate that bottled water was distributed to passengers in affected areas. Some airlines and airport vendors also advised travellers to arrive having already eaten or to bring their own supplies, given the reduced catering options within the terminals.

Families with young children and passengers on long-haul itineraries appeared particularly impacted, as they typically rely on terminal facilities for extended periods before boarding. Travel forums and passenger accounts highlighted concerns about hygiene in busy waiting areas where normal toilet capacity was sharply reduced.

Despite the infrastructure issues, publicly available flight data showed that air traffic at Gatwick continued to operate, with most services running but against a backdrop of constrained terminal amenities and heightened stress for those travelling.

Airport and water company work to restore supply

According to published coverage, Gatwick Airport stated that it was working closely with SES Water to restore full supply as quickly as possible. Engineering teams focused first on resolving the electrical problem at the treatment plant feeding the wider area, before gradually re-pressurising the network serving the airport.

Industry commentary notes that once power is restored to such a facility, the return to normal service is not immediate. Water companies typically need several hours to build pressure in the system, flush lines where necessary, and confirm that quality and reliability are within operational standards before large sites like airports can safely reopen all washrooms and catering units.

During the outage, terminal operators prioritised essential services, attempting to keep a limited number of toilets available where possible and coordinating with cleaning contractors to manage high usage. Retail and hospitality partners inside the airport were asked to modify or suspend operations where health and safety rules could not be met without reliable running water.

Reports suggest that contingency plans, such as the use of additional bottled water and temporary facilities, were under consideration in case the outage extended into Sunday evening and the peak of outbound holiday traffic.

Peak summer travel amplifies impact on operations

The outage struck at a particularly sensitive time for Gatwick, which is the United Kingdom’s second-busiest airport and a major gateway for European leisure travel during the summer season. Late July typically brings high passenger volumes, with terminals and departure lounges operating near capacity throughout weekends.

Analysts quoted in travel industry reports note that modern airports are highly dependent on continuous utility services, including water, power and telecommunications, to maintain smooth operations. A failure in any of these external networks can quickly cascade into long queues, service closures and customer dissatisfaction, even if flight schedules remain largely intact.

Recent summers have already been challenging for many European hubs, with staffing shortages, air traffic control constraints and extreme weather placing pressure on operations. Against that backdrop, an external water supply failure adds another layer of complexity for airports like Gatwick that serve large numbers of short-haul, high-turnover flights.

Travel experts suggest that the incident may prompt renewed scrutiny of resilience planning, including backup water storage, alternative supply routes and clearer passenger communication strategies when core facilities are compromised.

Advice for travellers using Gatwick in the coming hours

As work to restore full water service continues, travel advisories recommend that passengers with flights to or from Gatwick on Sunday and into the evening check the latest updates from their airline and from airport information channels before setting out. Published guidance emphasises that, while flights are expected to operate, terminal facilities may remain limited while systems are brought back online.

Passengers are being encouraged in media reports to allow extra time at the airport, bring essential items such as hand sanitiser and tissues, and, where possible, eat or drink before arriving in case catering outlets remain closed or restricted. Those travelling with children or with medical needs may wish to prepare additional supplies to reduce reliance on terminal amenities.

For many travellers, the incident is a reminder of how dependent large transport hubs are on surrounding infrastructure. Even a relatively short disruption in the regional water network can have an outsized effect when thousands of people are concentrated in a single complex that relies on constant access to clean water and functioning sanitation.

Observers note that once full pressure and normal operations are restored, attention is likely to turn to reviewing how the outage unfolded, how information was shared with passengers, and what measures might reduce the risk or impact of similar incidents at Gatwick and other major airports in future.