Why Dense Fog at Delhi Airport Forced 128 Flight Cancellations

Dense fog severely disrupted operations at Indira Gandhi International Airport (IGI) in Delhi on Monday morning, leading to widespread cancellations and delays.

Airport sources confirmed 128 flights were cancelled due to the low visibility conditions. This total included 64 arriving and 64 departing flights at the country's busiest airport. Additionally, eight inbound flights were diverted to other airports.

Operational Impact and CAT III Conditions

Delhi International Airport Limited (DIAL) issued an advisory. They stated that flight operations were running under CAT III conditions. This designation is required due to persistent dense fog Delhi airport conditions. CAT III procedures allow aircraft to operate in very low visibility. Aircraft must be specially equipped, and crews must be highly trained. However, this protocol significantly limits the number of flights that can operate. This restriction results in slower movements and inevitable delays. Visibility reportedly dropped to as low as 50 meters in the early morning.

Regulator and Airline Response

The Ministry of Civil Aviation issued its own advisory. It warned that Northern India flight operations could be affected by fog. This could lead to possible delays across the region.

Airlines also quickly issued advisories to passengers. IndiGo, a major domestic carrier, advised passengers to check their flight status. The airline noted that fluctuating visibility was impacting schedules. They stated that flight movements were slower than normal. Other carriers, including Air India, also cautioned travelers. They urged passengers to allow extra time for airport travel.

Winter Fog Season and Safety

The aviation regulator, the Directorate General of Civil Aviation (DGCA), has a designated fog window. This official winter fog season runs from December 10 to February 10, 2026. During this period, airlines must follow special low visibility procedures. These rules require CAT III-trained pilots and equipped aircraft. For example, CAT-III B permits landings with a runway visual range under 50 meters.

Safety remains the top priority for all stakeholders. Air traffic control (ATC) and ground teams work to minimize disruptions. Despite these efforts, the weather causes a cascading effect. This impacts flight schedules across the domestic network. Passengers are advised to stay updated via official airline channels.

For more updates on commercial aviation news, visit flying.flights. The challenges faced by airlines, such as those using Airbus aircraft, highlight the need for advanced technology. The International Air Transport Association (IATA) monitors the economic impact of such disruptions globally.