M25 crash near Heathrow halts all lanes on 3 August 2026

A crash on the M25 near Heathrow Airport brought all lanes to a standstill on the morning of 3 August 2026. The incident occurred close to Junction 14, a key access point for the airport and surrounding areas in Hillingdon. This Is Local London reported the closure shortly after the collision was confirmed.

Emergency services were dispatched to the scene, though details of the crash remain limited. It is unclear how many vehicles were involved or whether there were any injuries. The closure affected both clockwise and anti-clockwise carriageways, causing significant disruption to one of the UK’s busiest motorways.

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Impact on local traffic and travel advice

Drivers travelling through the area were advised to avoid the M25 near Heathrow while emergency crews worked at the scene. No alternative routes were officially suggested by Transport for London (TfL) or the Highways Agency, leaving motorists to seek diversions independently. The extent of delays was not immediately quantified.

Junction 14 serves as a critical link for traffic entering and exiting Heathrow Airport, as well as for freight movements to and from the cargo hub. The closure is likely to have affected airport-bound traffic, though no statements from Heathrow Airport or airlines have been reported.

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What happens next

At the time of reporting, there was no confirmed timeline for reopening the M25. The Highways Agency, responsible for managing the motorway, had not issued an update on when lanes would be cleared. Drivers were urged to check traffic updates before travelling, though no formal advice had been published.

This Is Local London will continue to provide updates on the situation as more information becomes available. The cause of the crash and any potential charges remain under investigation by the police.