As a result of this problem, an unknown number of passengers got stuck or delayed waiting to board international flights.
The airline said it had rebooked some customers on alternative flights and offered hotels to those who “cannot continue their journey.”
In recent years, the airline has suffered a series of technical irregularities. British Airways was forced to cancel more than 100 flights in August when its computer systems crashed.
In 2017, it canceled flights from London Heathrow and Gatwick airports after a “serious IT system malfunction” caused a serious disruption to its global operations, reaching 75,000 customers.
-— Heide Garcia provided reports