(GATWICK) A serious police incident forced a full M23 shutdown near Gatwick Airport early Wednesday, triggering widespread travel chaos for passengers and local drivers during the morning rush.
Surrey Police closed both northbound and southbound lanes between junctions 8 and 9 at about 7:00 AM BST on September 10, 2025, cutting a vital link between Gatwick Airport and the M25. Northbound traffic began moving again shortly after 8:00 AM, but the southbound lanes remained shut much longer as emergency teams worked on scene. Authorities said they expect normal traffic conditions between 15:45 and 16:00 on Wednesday, though delays could linger into the evening as congestion clears.
Gatwick Airport urged travelers to leave much earlier than normal and check live updates, warning that journeys from London and the southern corridor would take far longer than usual. The airport’s advisory followed heavy queues across Crawley and Horley and slow-moving traffic near key junctions. National Highways confirmed that official detours were in place and asked drivers to follow signs and avoid last‑minute lane changes.
According to analysis by VisaVerge.com, the M23 is a single point of failure for Gatwick’s road access, so a complete closure—especially at peak hours—quickly spills into airport operations, including check-in and security lines.
Officials have not released details about the nature of the police incident. Surrey Police said public safety comes first and that the investigation is ongoing. No casualty or arrest figures have been issued. The force is coordinating with National Highways traffic officers and other emergency services to reopen the road as fast as possible while protecting the scene.
Traffic status and detours
As of mid-morning:
– The northbound lanes had reopened, easing some pressure from the M25 toward Gatwick.
– The southbound carriageway remained closed for an extended period, with stop‑start traffic stretching across nearby routes.
National Highways set official diversion routes using the A22 and A264, guiding traffic through Crawley and Horley and onto local roads. Drivers reported slow progress along these corridors as thousands of vehicles left the motorway at short notice, many carrying passengers trying to reach flights at Gatwick Airport.
Authorities expect conditions to improve once the southbound lanes reopen and traffic flows stabilize. However, even after the motorway clears, residual delays are likely as queues unwind and detoured vehicles return to normal routes.
Track live status and official updates:
– National Highways: https://nationalhighways.co.uk
– Surrey Police: https://www.surrey.police.uk
– Gatwick-specific travel and flight notices: https://www.gatwickairport.com
Airport operations continued, but the M23 shutdown caused many passengers to arrive late to check‑in and security, with some reporting missed flights. Airlines and the airport advised travelers to monitor airline apps and airport feeds for any schedule changes or gate holds tied to late-arriving passengers and crew. Ground handlers and logistics operators also faced knock‑on delays, adding time to deliveries and airport services that depend on reliable motorway access.
Impact on travelers and local economy
The immediate effects hit hardest on people traveling to and from Gatwick:
– Journey times doubled or worse for many, especially those coming from the M25.
– Families with morning departures scrambled to find alternative routes.
– Business travelers missed meetings due to gridlock.
– Service workers risked missed shifts and reduced pay due to late arrivals.
Local firms were affected as vans and lorries rerouted onto the A22 and A264, increasing travel time and fuel costs. Transport analysts say this episode shows how one motorway incident can ripple across:
– Airlines
– Airport staffing
– Hotels
– Car rental firms
– The wider community dependent on predictable access to Gatwick Airport
The M23 corridor is a primary artery for one of the United Kingdom’s busiest airports. In recent years, police, highways teams, and airport officials have strengthened joint plans to handle major incidents. Even so, the scale and timing of this closure stood out: morning peak, limited alternate high‑capacity routes, and heavy passenger loads combined to create a high-friction event.
Travel analysts also highlighted the importance of clear, real-time communication. Today’s advisories helped, but drivers who left home before the first alerts often hit the closure before they could adjust plans. Officials encouraged everyone heading to Gatwick to check live feeds before setting out and to plan for delays even after the motorway reopens fully.
With the investigation ongoing, there is no official timeline beyond the late‑afternoon normalization target. Police emphasized that scene work must be completed safely and thoroughly. National Highways continues to manage flow on the open lanes and detours, and will adjust signal timings and roadside messaging to balance demand as conditions change.
Practical advice for travelers today
For travelers with flights today, practical steps can reduce stress:
1. Leave much earlier than usual, especially if you need to check a bag or clear security.
2. Use official detours: A22, A264, and signposted local roads through Crawley and Horley.
3. Check live road updates from National Highways and police channels.
4. Monitor airline apps and airport pages for gate holds or rebooking options.
Important: Plan for ongoing delays even after the motorway reopens. Allow extra time for check‑in and security, and follow official travel advisories.
Airport officials say flexible passenger support helps during disruption: clear signage, extra staff in check-in halls, and timely public announcements can keep queues moving and assist passengers with tight departure windows. Local authorities are also reviewing traffic management, including temporary traffic control on diversion routes, to speed flows when the motorway goes offline.
Wider policy questions
The episode raises broader policy questions about redundancy in airport access. Key points:
– Reliance on a single motorway corridor places passengers and businesses at risk during major incidents.
– A‑road alternatives exist, but none match the capacity or speed of the M23.
– Experts advocate for stronger contingency plans, more dynamic traffic control, and better integration of airport, police, and highways information systems to inform drivers earlier.
VisaVerge.com reports that robust incident playbooks—covering detours, signage, and stakeholder coordination—can shorten disruption times and reduce costs for airlines and logistics companies.
Authorities have not shared details of the police incident, and any policy review will wait until the investigation concludes. For now, the focus remains on:
– Reopening the southbound lanes
– Clearing congestion
– Getting travelers to Gatwick Airport in time for their flights
Police asked the public to avoid speculation and to follow official updates as they work to resolve the incident and restore normal traffic.
This Article in a Nutshell
On 10 September 2025, Surrey Police closed both lanes of the M23 between junctions 8 and 9 near Gatwick Airport at about 07:00 BST due to a serious police incident. Northbound lanes reopened shortly after 08:00, but the southbound carriageway stayed closed until emergency work progressed; authorities expected traffic to normalize between 15:45 and 16:00. National Highways implemented official diversions via the A22 and A264 through Crawley and Horley, producing heavy congestion, missed flights and knock‑on delays for airport services and local businesses. Officials stressed public safety while coordinating scene management and urged travelers to follow live updates, use detours, and allow extra time. Transport analysts noted the M23’s role as a single point of failure for Gatwick’s road access, prompting calls for stronger contingency planning.
