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Rail links between central London and Heathrow Airport have been severely disrupted after a grass fire near the Great Western Main Line triggered an electricity supply failure, suspending all trains between London Paddington and the UK’s busiest airport.
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Fire near Scrubs Lane sparks major rail disruption
Published coverage indicates that a grass fire broke out on Saturday afternoon near Scrubs Lane in North Kensington, close to the rail corridor used by Great Western Railway services and the Elizabeth line into London Paddington. London Fire Brigade reports describe six fire engines and around 40 firefighters responding to a grass blaze in the area, which affected railway operations on the approach to Paddington.
Reports from rail commentators and passenger updates suggest the fire damaged or interfered with electrical infrastructure serving the Great Western Main Line. National Rail information referenced in local media coverage attributes the subsequent rail shutdown to an electricity supply failure, leaving all lines between Paddington and Heathrow blocked.
Images shared on social media and reproduced by news outlets show thick plumes of smoke rising from trackside grassland, highlighting how quickly the blaze spread alongside the railway. While firefighters worked to contain the incident, trains were prevented from using key sections of the route in and out of Paddington.
The fire comes amid an already busy late-summer travel period for Heathrow, compounding pressure on the airport’s surface access network at a time when weekend leisure and holiday traffic remains high.
All trains to Heathrow and Reading suspended
According to National Rail disruption summaries cited in British and regional media, the incident led to the suspension of all Great Western Railway services between London Paddington and Reading, with knock-on effects across the wider network. Services on the dedicated Heathrow Express link between Paddington and Heathrow terminals were also reported as cancelled in both directions.
Elizabeth line services, which normally provide a high-frequency stopping route from central London to Heathrow and beyond to Reading, have been heavily affected. Publicly available status updates show the line suspended between Paddington and Heathrow Terminal 4 and Terminal 5, and also between Paddington and Reading, while other sections of the route continue to run with delays.
Journey planners and operator alerts warn that cancellations and heavy delays are expected into the evening, with some Great Western Railway trains turned back at Reading rather than continuing to London. Travellers heading for the Thames Valley and the West of England face extended journey times, revised timetables or the need to re-route via alternative London terminals.
Rail disruption information summarised by regional transport sites indicates that the incident has a broad impact beyond airport-bound services, placing additional strain on already busy weekend trains across the Great Western network.
Heathrow passengers diverted to Underground and road
With all rail services between Paddington and Heathrow suspended, passengers bound for the airport have been urged via airport and operator channels to allow extra time and consider alternative routes. Coverage of the disruption notes that Heathrow has pointed travellers towards the London Underground’s Piccadilly line and local bus and coach services as interim options.
Transport for London network updates show ongoing delays on the Piccadilly line, including sections serving Heathrow, due to unrelated train cancellations. While the line continues to run, those delays, combined with heavy demand from displaced rail passengers, have resulted in crowded trains and longer door-to-door journeys for airport users.
Road access to Heathrow, including the M4 and local approach roads, is expected to come under additional pressure as passengers shift to taxis, ride-hailing services and private cars. Previous incidents affecting rail access to the airport have led to congestion around key junctions and terminals, and today’s fire-related shut down appears to be having a similar effect, according to live traffic and passenger reports.
Coach operators serving Heathrow from central London and regional cities may also see increased loadings as rail users look for guaranteed connections to catch outbound flights or reach home after arriving into the airport.
Knock-on effects for wider Great Western and Elizabeth line network
National Rail and local travel update feeds indicate that the grass fire is causing disruption well beyond the immediate Paddington to Heathrow corridor. With lines blocked on the western approach into London, trains from destinations such as Bristol, Cardiff, Swansea and the Cotswolds are facing cancellations, diversions or short-notice alterations.
Some long-distance Great Western Railway services are being terminated short of London or re-timed, with passengers advised via operator channels to check journey planners before travelling. Crowding has been reported at major interchange hubs including Reading, as travellers attempt to re-route via alternative services or wait for limited capacity into the capital.
On the Elizabeth line, the suspension of services between Paddington, Heathrow and Reading has also created pressure on the remaining open sections towards Abbey Wood and Shenfield. Public network-status dashboards show severe delays in central London, with trains and platforms busier than usual as passengers adjust their plans.
Rail industry disruption pages emphasise that even once the fire is brought under control and lines are technically safe to reopen, residual delays and short-notice cancellations are likely to continue while trains and crew are repositioned and normal timetables are restored.
Uncertain timeline for full service restoration
At the time of writing, there is no precise public estimate for when a full service between London Paddington and Heathrow will resume. National Rail and operator updates referenced in media reporting describe significant disruption continuing into the evening, with all lines between Paddington and the airport remaining blocked while engineers assess damage and confirm that overhead power systems and signalling are safe to use.
Experience from previous weather-related and infrastructure incidents on the Great Western Main Line suggests that reopening can occur in stages, with limited services restored first and then gradually increased as more tracks and platforms come back into operation. Travellers are being directed to real-time journey planners and operator websites for the latest information, as conditions may change at short notice.
For air passengers, the disruption underscores the importance of checking both flight and surface transport status before leaving for the airport. Travellers with flexible tickets are being encouraged via public advice channels to consider re-timing journeys to off-peak periods where possible, or to use alternative London airports that are less affected by today’s events.
With late-summer leisure travel still strong and business travel gradually recovering, the incident highlights the vulnerability of Heathrow’s rail links when a single corridor experiences a major infrastructure failure, and is likely to renew calls from some industry observers for additional resilient connections between the airport and central London.
British Bulletin: Fire near London station causes major disruption for travellers
London Fire Brigade incident report: Grass fire - North Kensington