British Airways was forced to cancel all short-haul flights from the airport until Saturday due to technical issues.
British Airways said in a statement to Insider that they had to cancel all short-haul flights from Heathrow until midday because of the continuing technical issues.
Further disruption is anticipated during the day.
The problem was not caused by a cyber attack, according to the airline.
The airport apologized for the disruption.
British Airways website and app were down for several hours on Friday, which prevented customers from booking flights or checking in online.
At the time of writing, the website was back up and running.
British Airways said that long-haul services at Heathrow and all flights at London City Airport would operate as planned.
Customers will be able to get a full refund and rebook their flights at a later time, according to the airline.
Ed Hall told The Press Association that he was stuck on the plane for more than an hour after landing. The crew was not able to access any IT systems to learn where passengers could disembark.
British Airways canceled several flights in and out of London airports last week after a storm hit the UK. The storm caused winds of more than 120 miles per hour.