Heathrow Airport Restarts Operations After Fire-Induced Power Outage Causes Day-Long Chaos

London – Heathrow Airport, one of the busiest travel hubs in the world, was brought to a standstill on Friday following a massive fire at a nearby electrical substation that triggered a complete power outage across several terminals.

The fire, which broke out at around 11:23 PM on Thursday, March 20, at a North Hyde substation, caused significant damage to the power supply infrastructure serving the airport. Emergency crews worked through the night to extinguish the blaze, and engineers from UK Power Networks raced against the clock to restore electricity throughout Friday.

As of 6:30 PM, Heathrow Airport confirmed that power had been restored to all terminals and systems were coming back online.

“We have begun the phased resumption of operations at Heathrow. Our teams are working hard to support passengers and reconnect disrupted flights. We thank everyone for their patience during this unprecedented situation,” the airport’s spokesperson said.

Thousands of travellers were caught off-guard by the disruption, with many stranded inside terminals or stuck in long queues outside. Some flights that had already departed were diverted to alternative airports, while inbound flights were held or rerouted entirely.

Amar Krishna, who was travelling back to Heathrow from Trivandrum, India, shared his experience being diverted to Germany when the fire struck.

“People felt helpless,” he said. “We had no access to our checked in bags and no one knew what to do. It was a sudden and unexpected incident, and the uncertainty made it worse. We ended up staying overnight in Frankfurt Airport in Germany with barely any communication in the beginning.”

We were just about to board when everything shut down. The screens went black and no one knew what was going on,” said Rashida Khan, a passenger flying to Dubai from Heathrow. “It’s chaos.”

Transport Secretary Rachel Maclean has called for an emergency response team to assess the situation and ensure passenger safety. “Our priority is to support affected travellers and get the airport operational again as quickly as possible,” she said.

Heathrow Airport issued a formal apology via social media, asking travellers to avoid coming to the airport unless absolutely necessary and to contact their airlines directly for updates.

There have been no reported injuries related to the fire. An investigation is currently underway to determine the cause.

Travellers are advised to check with their airlines before heading to the airport and to consider alternative travel routes if possible.