There has been a second day of disruption for travellers at Heathrow after British Airways cancelled dozens more short-haul flights following yesterday's IT problems.
BA said cancellations were still happening due to the knock-on effect of a technical issue resulting in staff being in the wrong location.
A total of 175 flights have been axed, affecting more than 20,000 passengers.
It comes on the busiest day for UK air travel since 2019.
According to data firm Cirium, 83 BA flights, or around 8% of its planned Friday services, were cancelled.
This followed the cancellation of 92 flights yesterday, out of the 860 that were scheduled.