British Airways passengers face cancellations and delays after the airline was hit by a ‘technical issue’ overnight.
Customers around the world had their travel plans thrown into chaos following the apparent IT failure.
The airline has yet to explain the cause of the glitch or how long the disruption to service will last.
Responding to passengers venting their frustrations on social media, the airline said its ‘teams are working hard to resolve a technical issue which is affecting some of our flights’.
They added that they were ‘rebooking customers onto alternative flights and offering hotel accommodation where they are unable to continue their journeys’.
‘We are very sorry for the disruption to their travel plans,’ a spokeswoman added.
Flights to and from the UK’s two busiest airports, Heathrow and Gatwick, appear to be among those affected.
Customers were urged to check ba.com for the latest flight information and ensure their contact details are up to date on their booking.
Some complained of delays of up to 23 hours, while another commented on the airline ‘suffering yet another major outage in its computer network’, the Standard reported.
The latest in a string of IT failures
The airline has suffered a number of computer failures since 2017, the latest of which seriously disrupted operations in August.
More than 75,000 people were left stranded at Heathrow and Gatwick when more than 700 flights were cancelled following a major outage over the spring bank holiday weekend in 2017.
Customers described ‘total chaos’ in August that same year when the check-in system failed due to technical issues and they were left queuing for up to four hours and waiting around for their luggage.
The second major failure occurred in September 2018 when the airline revealed fraudsters had infiltrated their security systems and stolen the details of around 500,000 customers.
BA was fined a record £183 million for the data breach in July of this year.
The most recent outage in August saw more than 200 flights delayed and almost 100 cancelled after a glitch hit the airline’s check-in and flight departure systems.
Days later BA apologised for a ‘baggage system issue’ which caused hundreds of passengers to wait hours for their belongings.
It later suffered its first ever pilot strike in September of this year.
By 9am, some 45 flights due to land at Heathrow on Thursday were delayed by more than 45 minutes.
The worst affected was Flight BA170 from Pittsburgh, in the US, which was more than 12 hours behind schedule.
One passenger, due to fly to London from Los Angeles, told MailOnline: ‘The woman I just spoke to said the flight-plan generator had crashed, it seemingly means pilots cannot get journey details and are left stranded.
‘We should have taken off hours ago and there’s no sign of us leaving. People are saying they have missed their connections already. It’s chaos.’
A BA spokeswoman said: ‘Our teams are working hard to resolve a technical issue which has affected some of our flights, and we have rebooked customers onto alternative flights and offered hotel accommodation where they were unable to continue their journeys last night.
‘We are very sorry for the disruption to their travel plans.
‘We are advising customers to check ba.com for the latest flight information and to ensure that contact details are up to date on their booking, so that we can provide the latest information.’