A major power outage caused Heathrow Airport shut down for the day, disrupting over 1,300 flights. Planes heading to the busy hub were diverted, and the impact is expected to affect global travel for several days. Heathrow’s closure is a major disruption for transatlantic flights.

A huge fire broke out at a nearby electrical substation. This caused a massive power outage, forcing Heathrow Airport to shut down. The fire caused chaos for thousands of passengers and their flights. Heathrow airport announced it would remain shutdown until at least midnight on Friday. They said it was to ensure the safety of everyone at the airport. This means no flights will be operating during this time.
Heathrow Airport Shut Down
Power Outage Caused by Electrical Substation Fire
The fire happened at an electrical substation that supplies power to Heathrow. The airport posted on X (formerly Twitter) to let people know about the situation. They said, “Due to a fire at an electrical substation supplying the airport, Heathrow is experiencing a significant power outage.” Passengers were advised not to go to the airport. They were also told to contact their airlines for more information. Hence the shutdown at Heathrow Airport.
Disruption to Flights and Passengers
Heathrow is Europe’s busiest airport, and it handles a huge number of flights every day. On the day of the fire, there were 1,357 flights scheduled to either take off or land at the airport. This includes both international and domestic flights. The airport usually handles around 220,000 passengers daily. Due to the fire, Heathrow Airport was shutdown and many flights were affected.
At least 120 flights had to return to their origin airports or be diverted due Heathrow Airport shutdown. For example, flights from Toronto, Atlanta, Bridgetown, Barbados, Boston, Orlando, and Newark were redirected to airports in Ireland. This happened because London’s other airports didn’t have enough capacity to handle all the extra planes.
Heathrow Airport’s Impact on Global Air Travel
Heathrow is the fourth busiest airport in the world meaning the airport shutdown will affect air travel globally. The disruption is expected to continue for several days. Heathrow advised passengers not to travel to the airport at all. They also said that they don’t know when power would be fully restored. The airport’s statement to Sky News said, “We expect significant disruption over the coming days. Passengers should not travel to the airport under any circumstances until it reopens.”
When will Heathrow Airport reopen?
It is unclear when the heathrow airport will reopen from this shutdown. A spokesperson said: “Due to a fire at an electrical substation supplying the airport, Heathrow is experiencing a significant power outage. “To maintain the safety of our passengers and colleagues, Heathrow Airport will remain shutdown until midnight on 21 March. “Passengers are advised not to travel to the airport and should contact their airline for further information. We apologise for the inconvenience.
A Rare Closure for Heathrow
This shutdown is a very rare event for Heathrow airport. The last time the heathrow airport was fully shut down was in 2010. That was because of the eruption of the Eyjafjallajokull volcano in Iceland. The volcano released ash that grounded flights across Europe. Travel journalist Simon Calder mentioned that it was the busiest day of the week at Heathrow, making this situation even more serious.
Heathrow serves as the main hub for British Airways, one of the largest airlines in the UK. British Airways said the shutdown of Heathrow Airport would have a significant impact on their operations. They also asked the airport for more information about when things would return to normal.
Cause of the Fire Remains Unknown
It is still unclear what caused the fire at the electrical substation. The substation is located just 1.5 miles away from Heathrow airport causing it to shutdown. More than 16,000 homes also rely on the same substation for power. These homes were affected by the power outage as well.
The London Fire Brigade worked hard to control the fire. They sent 70 firefighters to the substation. Thankfully, the fire was brought under control quickly. The cause of the fire is still under investigation.
Emergency Response and Power Restoration
After the fire was controlled, the main concern was getting power back to Heathrow airport after it was shutdown. The airport and local authorities said they did not have a clear idea of when the power would be fully restored. This left both travellers and staff uncertain about when operations could return to normal.
The airport, which plays a crucial role in global air traffic, faced a huge challenge. They had to prioritise safety, while also managing the chaos caused by the shutdown. Passengers had to find alternative ways to reach their destinations, and the airlines were scrambling to make alternate arrangements.
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What Does This Mean for Future Flights?
As Heathrow airport is one of the busiest airports in Europe, this power failure and shutdown has caused widespread disruption. It’s not just affecting people traveling from the UK, but also people flying into London from all over the world. With many flights canceled or diverted, the ripple effect has been felt across the global aviation network.
What Happens to Passengers During Airport Shutdowns?
Passengers who were supposed to travel from Heathrow airpot were left stranded after the shutdown. With no flights operating, they were forced to find other solutions. Many passengers were told to wait at the airport for more updates. However, the authorities strongly advised against traveling to the airport at all. For now, the best advice is for passengers to contact their airlines to find out about the next steps.
FAQs
Why is Heathrow Airport closed?
Heathrow Airport is shutdown because of a fire at an electrical substation, which caused a significant power outage. The closure is to ensure passenger safety.
When will Heathrow Airport reopen?
It is unclear when heathrow airport will reopen after this shutdownn. A spokesperson said: “Due to a fire at an electrical substation supplying the airport, Heathrow is experiencing a significant power outage. “To maintain the safety of our passengers and colleagues, Heathrow Airport will be closed until midnight on 21 March. “Passengers are advised not to travel to the airport and should contact their airline for further information. We apologise for the inconvenience.
How many flights were affected?
Over 1,300 flights were scheduled to land or take off from Heathrow, with at least 120 flights being diverted or canceled due to heathrow airport shutdown.
What caused the fire at the substation?
The exact cause of the fire is still under investigation. No official information has been released yet.
How long will Heathrow remain closed?
Heathrow airport is expected to stay shut down until at least midnight on Friday. Authorities are unsure when power will be fully restored.
Which flights have been redirected?
Flights from Toronto, Atlanta, Bridgetown, Barbados, Boston, Orlando, and Newark have been redirected to airports in Ireland due to Heathrow Airport shutdown.
How many passengers are affected by the closure?
Heathrow handles about 220,000 passengers per day. Thousands of travelers have been impacted by this power outage.
Is Heathrow the only airport affected by the fire?
No, more than 16,000 homes that are supplied by the same substation have also been affected by the power outage.