If two weeks ago, London was inaccessible from Paris due to a bomb found on the tracks at the Gare du Nord, now the British capital is again out of reach. This Friday, March 21, 2025, Heathrow Airport, the largest in Europe and one of the busiest in the world, “ is experiencing a significant power outage ,” stated Heathrow Airport Holdings as reported by AFP. This incident is preventing any air traffic. “ To ensure the safety of our passengers and colleagues, Heathrow will be closed until 11:59 PM on March 21 ,” they added.
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A closure caused by a fire
It's a « significant » fire that is at the heart of the issue. It broke out at the Hayes electrical substation and was brought under control around 9 AM this morning by the mobilized British firefighters. « A large number of local homes and businesses » are also affected, stated Pat Galbourne, spokesperson. « Our firefighters are working tirelessly, in challenging conditions, to contain the fire as quickly as possible », he clarified.
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At least 1000 flights affected by this incident!
This incident has caused a global disruption of air traffic. In addition to the cancellation of all flights departing from Heathrow and those with the British airport as their final destination, some had to be diverted. This was the case for two flights from Qantas, which were directed to Paris Charles de Gaulle. Ouest-France reports that seven United Airlines flights had to be diverted to other airports...
rts or return to their departure airport. In total, at least 1000 flights are going to be affected. Serious disruptions are expected in the coming days. For the time being, the airport is urging travelers to avoid trying to get to the airport at all costs before it reopens.