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Travel Radar - Aviation News > News > Aviation > Heathrow Airport Closed Today Due to Fire Outbreak
AviationBreaking NewsIncidents & Accidents

Heathrow Airport Closed Today Due to Fire Outbreak

Grace Lee
Last updated: 21 March 2025 17:14
By Grace Lee
2 Min Read
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Heathrow Airport announced a shutdown for today (21 March 2025) until 2359 in response to an overnight fire that caused a serious power outage. Over 1,300 planes originally flying to and from the airport are under flight diversions.

flight status map of flights diverted from Heathrow Airport to other nearby airports.
flight status map of flights diverted from Heathrow Airport to other nearby airports. © AirNav Radar.

Overnight fire Causing Major Power Outage and Flight Diversions

A fire broke out at an electrical substation in West London yesterday and has caused major power outages. Heathrow Airport announced a shutdown for passenger and staff safety. At least 1,351 flights originally arriving at or departing from the airport are now under diversion to other nearby airports.

Aftermath of the fire at Hayes Substation
© AP

The electrical substation is one of the major suppliers of power at Heathrow, the fire has cut off the power supply for the airport’s operations, while around 5,000 households near the area are experiencing blackouts.

Announcement of closure until 21 March 2359 on their official website.
Announcement of closure until 21 March 2359 on their official website. © Heathrow Airport.

Global Shock from Impacts Caused by Sudden Shutdown

As one of the major hubs connecting the UK and the world, this major disruption stirs up chaos around aviation today, with huge amounts of travellers and flights impacted.

Fire at a substation
© AP

Travellers are advised to be aware of the most updated situations and be prepared for alternative travel plans in the coming days.

Follow for the latest updates on the incident and its impacts.

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Grace Lee
ByGrace Lee
Aviation Journalist Intern | English Literature and Translation graduate with a keen interest in lifestyle and culture reporting. Currently based in the UK.
Previous Article Signing of the Memorandum of Understanding between the Hong Kong Airport Authorities and Elior Group SA. Elior Group’s Planned New Hub at Hong Kong International Airport
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