What’s happening at Heathrow Airport? Update after London fire throws air travel into disarray

Heathrow Airport, Europe’s busiest, has shut down today, following a fire last night at a nearby electrical substation that caused a major power outage. The closure has disrupted at least 1,350 flights, according to Flightradar24, with some aircraft diverted to alternate airports like Gatwick, Amsterdam’s Schiphol, and Paris’s Charles de Gaulle. What caused the fire? While the cause of the fire is still under investigation, British officials have stated that there is no evidence of foul play. According to the London Fire Brigade, the fire broke out at an electrical substation around 11:20 p.m. on Thursday, involving a transformer containing 25,000 liters of cooling oil “that was fully alight.” The blaze posed a serious risk due to “live high-voltage equipment and the nature of an oil-fueled fire,” the brigade said. Around 70 firefighters responded to the incident. As of the latest update, about 10% of the fire remains burning. The incident left 67,000 homes without power, with 5,000 still affected. Both Heathrow Terminals 2 and 4 are without power. Additionally, around 150 people were evacuated to a rest center for safety. Firefighters and emergency services are continuing to address the situation. “This was a very visible and significant incident, and our firefighters worked tirelessly in challenging conditions to bring the fire under control as swiftly as possible,” Pat Goulbourne, assistant commissioner of the London Fire Brigade, said in a statement. What should I do if I have a flight from Heathrow Airport today? Heathrow Airport confirmed that it would remain closed until at least 11:59 p.m. on Friday, warning passengers not to attempt to travel. Authorities have warned of continued disruptions and advised travelers to check with their airlines for updates. The U.K.’s Department for Transport travel guide includes a detailed breakdown of passenger rights covered by law when something goes wrong at a U.K. airport.

Mar 21, 2025 - 14:37

What’s happening at Heathrow Airport? Update after London fire throws air travel into disarray

Heathrow Airport, Europe’s busiest, has shut down today, following a fire last night at a nearby electrical substation that caused a major power outage. The closure has disrupted at least 1,350 flights, according to Flightradar24, with some aircraft diverted to alternate airports like Gatwick, Amsterdam’s Schiphol, and Paris’s Charles de Gaulle.

What caused the fire?

While the cause of the fire is still under investigation, British officials have stated that there is no evidence of foul play.

According to the London Fire Brigade, the fire broke out at an electrical substation around 11:20 p.m. on Thursday, involving a transformer containing 25,000 liters of cooling oil “that was fully alight.”

The blaze posed a serious risk due to “live high-voltage equipment and the nature of an oil-fueled fire,” the brigade said.

Around 70 firefighters responded to the incident. As of the latest update, about 10% of the fire remains burning.

The incident left 67,000 homes without power, with 5,000 still affected. Both Heathrow Terminals 2 and 4 are without power. Additionally, around 150 people were evacuated to a rest center for safety. Firefighters and emergency services are continuing to address the situation.

“This was a very visible and significant incident, and our firefighters worked tirelessly in challenging conditions to bring the fire under control as swiftly as possible,” Pat Goulbourne, assistant commissioner of the London Fire Brigade, said in a statement.

What should I do if I have a flight from Heathrow Airport today?

Heathrow Airport confirmed that it would remain closed until at least 11:59 p.m. on Friday, warning passengers not to attempt to travel. Authorities have warned of continued disruptions and advised travelers to check with their airlines for updates.

The U.K.’s Department for Transport travel guide includes a detailed breakdown of passenger rights covered by law when something goes wrong at a U.K. airport.