Dense fog has enveloped Delhi-NCR and parts of North India, causing delays to several flights at Indira Gandhi International Airport. Airlines including IndiGo, SpiceJet and Air India, along with the airport, have advised passengers to check flight status. Delhi's AQI has dipped to 387, nearing the severe category.
On the morning of December 19, 2025, dense fog blanketed several parts of North India, severely impacting the Delhi-NCR region. Visibility dropped below 100 meters in cities like Noida, Ghaziabad, and Delhi. The fog's effects extended to eastern India and Bihar, with snowfall expected in the northwest Himalayan areas.
At Delhi's Indira Gandhi International (IGI) Airport, CAT III operations were initiated due to the fog, enabling landings in low visibility. Several flights faced delays, with potential cancellations. The Delhi Airport issued an advisory stating, "Due to dense fog, CAT III operations have commenced at the airport, which may lead to delays and disruptions. Our on-ground teams are working with all stakeholders to assist passengers and provide support at all terminals. For real-time flight updates, please contact your respective airline."
IndiGo Airlines posted a travel advisory on social media: "Visibility has reduced in Delhi and parts of North India due to early morning fog, affecting flight operations. We appreciate your understanding... Please check the latest flight status before heading to the airport." The airline noted that its teams are monitoring weather conditions and coordinating with air traffic authorities to minimize inconvenience.
SpiceJet warned: "Due to bad weather at Delhi (poor visibility) and Dubai (thunderstorm with rain), all departures/arrivals and consequential flights may be affected." Air India also cautioned about flight disruptions. Additionally, Delhi's overall AQI fell to 387, pushing air quality toward the severe category once more. Passengers are urged to verify flight status before traveling to the airport.