British Airways crew members arrive at terminal 5 at Heathrow on March 21, 2025 in London, England.
Peter Nicholls | Getty Photographs
London’s Heathrow Airport reopened Saturday however vacationers are being warned of serious delays as airways scramble to renew flights and return stranded passengers.
Europe’s busiest airport was closed for most of Friday after an influence outage following a hearth at a close-by electrical substation, inflicting over 800 flights to be canceled out and in of the airport, in accordance with flight-tracking web site FlightAware.
The primary flight took off from the airport late Friday native time, nevertheless, and the airport’s departure board signifies that almost all of flights are on account of run as scheduled on Saturday.
“Flights have resumed at Heathrow following yesterday’s energy outage,” the airport stated on its web site Saturday.
“Should you’re on account of journey at present, we advise you to nonetheless contact your airline for the most recent flight data earlier than heading to the airport. We apologize for the disruption and admire your persistence while operations return to regular.”

Nationwide Grid stated Saturday that energy provide had been restored to all prospects, together with Heathrow, permitting operations to renew.
“We at the moment are implementing measures to assist additional enhance the resilience ranges of our community,” the utility firm stated in a press release.
“We’re deeply sorry for the disruption brought on and are persevering with to work intently with the Authorities, Heathrow and the police to know the reason for the incident.”
London’s Metropolitan Police stated that whereas there was “no indication of foul play,” the counterterrorism division would now lead the investigation into the hearth.
“Given the situation of the substation and the impression this incident has had on crucial nationwide infrastructure, the Met’s Counter Terrorism Command is now main enquiries,” the power stated in a post on X.
‘Count on delays’
Airways are speeding to renew flights and get 1000’s of stranded passengers to their remaining locations.
British Airways was the airline most affected by the incident, with over half of its Friday schedule canceled. It stated it expects to run nearly all of its Heathrow schedule on Saturday, however that prospects ought to anticipate delays.
Floor crews load cargo and provides onto airplanes from airways together with Lufthansa Group, Emirates, Austrian Airways, and British Airways, as they stand parked on the Tom Bradley Worldwide Terminal (TBIT) at Los Angeles Worldwide Airport (LAX) in El Segundo, California, on September 11, 2023.
Patrick T. Fallon | Afp | Getty Photographs
“We anticipate that round 85% of our Saturday 22 March Heathrow schedule will run as deliberate, however to get better an operation of our dimension is extraordinarily complicated, so our prospects will probably expertise delays,” the airline stated in a press release Saturday.
“We’re advising prospects to journey to the airport as regular except informed in any other case. In case your flight goes to be disrupted, we are going to contact you as quickly as doable to let what you’ll want to do.”
It added that it was providing “versatile choices” enabling these on account of journey from Heathrow this weekend to rebook for a unique date free of charge.
Virgin Atlantic, in the meantime, stated it additionally deliberate to run a “near-full schedule with restricted cancellations” on Saturday.
Heathrow Airport has an estimated 1,300 takeoffs and landings on the airport per day, in accordance with its web site. It dealt with a file 83.9 million passengers final yr — an almost 6% improve from 2023.
The incident has raised questions over the dependence of the airport on a single energy supply.
Willie Walsh — former CEO of British Airways-owner IAG and now CEO of IATA, an airline business group — criticized Heathrow Airport for its “whole planning failure” and questioned who would cowl the prices of the ensuing disruptions.
“We should discover a fairer allocation of passenger care prices than airways alone choosing up the tab when infrastructure fails,” he stated. “Till that occurs, Heathrow has little or no incentive to enhance.”