In brief
At least 1,300 flights experienced cancellations and delays at Heathrow Airport on March 21, 2025, after the facility was closed following a major fire incident that led to a power outage. The airport, which is the busiest in Europe, was expecting around 220,000 travelers that day. Officials announced the closure would remain in effect until 11:59 p.m. local time, prompting widespread disruption to both domestic and international air travel.
Travelers are urged to refrain from heading to the airport and instead to communicate with their airlines regarding updates and rescheduling options. Authorities reported that police were on-site turning away anyone attempting to enter the airport, and surrounding traffic was rerouted in response to the incident.Many of the major airlines have proactively updated their flight information online, outlining ongoing disruptions and providing guidance for affected passengers. Social media channels are also being utilized for real-time updates.
