The problem left an unknown number of passengers stranded or delayed while waiting to board international flights.
The carrier said it re-booked some customers on alternative flights and offered hotels to those who could not" continue their travel. "
The airline has been hit by a series of technical snafus in recent years. British Airways was forced to cancel more than 1
In 2017, it canceled flights from London's Heathrow and Gatwick airports after "a major failure of the IT system" caused serious disruption to the global business, stranding 75,000 customers.
-— Jaide Garcia contributed to the reporting