Why were flights cancelled at Delhi Airport on December 18?

Flights were cancelled at Delhi Airport on December 18 due to dense fog and a significant drop in visibility.

What are CAT-III conditions for flights?

CAT-III conditions allow aircraft to land in very low visibility, such as fog, with a runway visual range of 50-200 meters.

How often does fog disrupt Delhi airport operations?

Fog frequently disrupts Delhi airport operations during the winter months, particularly between December 10 and February 10.

Home / Weather / Delhi Fog Grounds 27 Flights, Sparks Delays

Delhi Fog Grounds 27 Flights, Sparks Delays

18 Dec, 2025

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Summary

Twenty-seven flights were cancelled due to dense fog.
Operations were conducted under CAT-III conditions.
Low visibility has a cascading impact on flight networks.

Delhi Fog Grounds 27 Flights, Sparks Delays

On December 18, dense fog at Delhi Airport caused significant flight disruptions, resulting in 27 cancellations and multiple delays. Operations were managed under CAT-III conditions, a protocol for low visibility landings requiring trained pilots and compliant aircraft. The airport advised passengers of potential disruptions.

This incident is part of a broader pattern of winter weather impacting Northern India. On December 26, similar low visibility conditions led to 131 flight cancellations at the same airport. The fog season, officially from December 10 to February 10, poses a consistent challenge.

Aviation regulator DGCA has designated this period as the official fog window. Crisis-hit IndiGo also reported cancelling 113 flights network-wide due to weather at Delhi and planned to cancel 42 more. The airline stated its teams are monitoring conditions and making adjustments.

Disclaimer: This story has been auto-aggregated and auto-summarised by a computer program. This story has not been edited or created by the Feedzop team.