Flight operations at Delhi’s Indira Gandhi International Airport are almost back to normal today, with only minor delays reported after a 36-hour disruption caused by a major Air Traffic Control (ATC) system glitch.
According to data from flight tracking platforms, 129 flights were delayed on Saturday, 53 arrivals and 76 departures, a sharp improvement from Friday, when nearly 800 flights were affected. Average arrival delays have dropped to around five minutes, while departures are running roughly 19 minutes late.
The disruption began on Thursday evening when the Automatic Message Switching System (AMSS), a critical part of ATC operations that processes flight plans, suffered a technical fault. Controllers had to revert to manual procedures, slowing down clearances and causing widespread congestion across domestic and international services.
The Airports Authority of India (AAI) has confirmed that the system is now fully restored. Airlines including IndiGo, Air India, and SpiceJet said operations have largely stabilised but advised passengers to check real-time flight updates before travelling.
The glitch also caused minor ripple delays at airports in Mumbai and Ahmedabad as aircraft rotations and crew schedules were adjusted. Officials said operations are expected to normalise completely within the next 24 hours.
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