NEW DELHI, December 29 — Dense fog enveloped Delhi and the National Capital Region on Sunday night, severely reducing visibility and pushing air quality into the ‘severe’ category. The Indira Gandhi International Airport activated low-visibility procedures and airlines issued advisories warning passengers of potential flight disruptions.
What is the current situation at Delhi airport?
Delhi’s Indira Gandhi International Airport (IGI) is operating under Low Visibility Procedures (LVP). The airport operator, Delhi International Airport Limited (DIAL), announced the measure in a post on X (formerly Twitter) at 11:03 PM Sunday, stating, “Low visibility procedures are in progress at Delhi airport.” While flight operations were initially reported as normal, passengers were advised to contact their airlines for real-time flight updates due to the unpredictable conditions.
Passenger Advisory issued at 23:00 hours.
Please click on this link for real-time winter travel updates: https://t.co/KkKldKUlLQ#DelhiAirport #PassengerAdvisory #DELAdvisory pic.twitter.com/V9mbCHSEHE
— Delhi Airport (@DelhiAirport) December 28, 2025
How poor is the air quality?
The fog coincided with a significant deterioration in air quality. Data from the Central Pollution Control Board’s (CPCB) Sameer app recorded Delhi’s Air Quality Index (AQI) at 404 around 11:20 PM Sunday. This reading is definitely in the “severe” range, which means that people with respiratory disorders should exercise caution and that the general public is at danger.
What are airlines saying?
Major airlines have proactively issued travel advisories. Air India warned on X of probable disruptions due to forecasts of dense fog and low visibility in northern India, including Delhi. “In the event of unexpected delays, diversions, or cancellations, please rest assured that our ground teams will extend all necessary assistance,” the airline stated. Similarly, SpiceJet advised that all arrivals and departures at Delhi and their connecting flights might be affected, directing passengers to check their flight status online.
Weather forecast for tomorrow morning indicates dense fog with low visibility in parts of northern India, including Delhi, which is likely to impact flight operations.
We have taken proactive steps to minimise disruptions (learn more at https://t.co/RJc1tVFxuD).…
— Air India (@airindia) December 28, 2025
#WeatherUpdate: Due to bad weather (poor visibility) in Delhi (DEL), all departures/arrivals and their consequential flights might get affected. Passengers are requested to keep a check on their flight status via https://t.co/2wynECZugy.
— SpiceJet (@flyspicejet) December 28, 2025
Where has the fog been reported?
Residents across Delhi-NCR reported heavy fog, with very low visibility in places such as Noida. Social media users shared near-zero visibility scenes, with one video post stating, “Dense fog covers Delhi–NCR, especially Noida.” Travel with caution.” This incident follows similar fog-related disruptions at IGI Airport just over a week ago.
Frequently Asked Questions (FAQs)
Q: What should passengers flying from Delhi do?
A: Passengers should directly contact their airline for the most current flight information, check the airline’s website or social media for advisories, and allow for significant extra travel time to the airport.
Q: What does ‘Low Visibility Procedures’ mean at the airport?
A: LVP refers to procedures used during dense fog, including wider spacing between aircraft, dependence on specific instrument landing systems, and possible cuts in take-off and landing rates, causing delays.
Q: Is the fog affecting only flight operations?
A: No. Dense fog has sharply reduced road visibility, making driving dangerous. At the same time, a ‘severe’ AQI level raises health concerns, prompting residents to limit outdoor activities.
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