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Travel Radar - Aviation News > News > Travel > Airports > Heathrow Airport ‘Fully Operational’ after Power Outage
AirportsAviationBreaking NewsIncidents & Accidents

Heathrow Airport ‘Fully Operational’ after Power Outage

Jenna Stevens
Last updated: 22 March 2025 18:06
By Jenna Stevens
3 Min Read
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A view of an aircraft and the buildings of Heathrow Airport Terminal 5
Heathrow Airport Terminal 5 © Heathrow Airports Limited
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After suffering a major power outage at an off-airport power substation, London Heathrow announces a ‘fully operational’ return to proceedings. Flights at the airport have resumed, yet many passengers remain impacted.

A birds-eye view of Heathrow Airport
A view of Heathrow Airport © Heathrow Airports Limited

Flights Have Resumed: Heathrow Airport Releases Statement

An updated statement, released by Heathrow Airport on March 22, 2025, announced the airport’s return as ‘open and fully operational’. Despite re-opening and resuming flights, the airport advise travellers to ‘check with their airline for the latest information regarding their flight’ to remain up-to-date.

The statement comes after the airport actioned a major shutdown on Friday, March 21 due to a power outage caused by a fire. On the night of Thursday, March 20, a fire broke out at a substation in Hayes. This impacted power supply to London Heathrow’s terminals, and subsequently a power outage was declared. Heathrow airport operations momentarily ceased, seeing over 1,000 flight cancellations. However, the update given by Heathrow Airport notes that airport staff ‘continue to do everything they can to support passengers impacted by yesterday’s outage’, as the airport plans to return to regular function.

A screenshot of the banner on Heathrow Airport's website displaying the statement released by Heathrow Airport.
A screenshot of the statement released by Heathrow Airport © Heathrow Airports Limited

Cancellations Continue Despite Re-Opening

After travel was disrupted for approximately 200,000 passengers following the power outage, some disruptions still remain. Passengers have flocked to Heathrow after the airport has announced its re-opening, yet may face further difficulties. Although Heathrow Airport has deemed proceedings to be ‘fully operational’, many passengers travelling in and out of the airport are still experiencing cancellations. According to Heathrow’s online departure and arrival boards, at least 100 flights departing or arriving into the airport have been cancelled, with airline British Airways being significantly impacted. For specific information regarding delays and cancellations, passengers should keep in contact with their airline for the latest updates.

Passengers with luggage head towards Heathrow Terminal 2: The Queen's Terminal
Passengers are arriving in large numbers at Heathrow © Heathrow Airports Limited

Stay up-to-date with Travel Radar, as we cover Heathrow Airport’s return upon re-opening after the power outage.

Have your travel plans been impacted by the power outage at Heathrow Airport?

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Jenna Stevens
ByJenna Stevens
Aviation Reporter - Travel reporter who is passionate about making global exploration both accessible and sustainable. Jenna loves to write about aviation, sustainability and the future of travel.
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