The technical problem, which emerged earlier today, prompted the grounding of flights at airports throughout the United Kingdom, stranding travellers and causing cascading delays. Multiple news outlets confirmed that hundreds of flights were affected.
As of late Tuesday, the glitch has been resolved, but the backlog of delayed and cancelled flights means normal operations are expected to take time to fully recover. Airports and airlines are working to rebook passengers and clear the backlog.
The cause of the glitch has not been publicly detailed, and investigations are ongoing. Authorities have not released a timeline for when all scheduled flights will resume normally.