According to PTI, 97 flights were cancelled, which included 48 arrivals and 49 departures, due to low visibility that hampered aircraft movement. Additionally, over 200 flights experienced delays, with departing flights averaging a delay of around 23 minutes, as reported by flight tracking website Flightradar24.
In spite of the disruptions, the airport operator Delhi International Airport Limited (DIAL) claimed that operations were proceeding without major issues. In a midday post on X, DIAL assured that the situation at the airport remained stable. DIAL oversees Indira Gandhi International Airport, the busiest airport in the nation, which manages approximately 1,300 flights each day.
Passenger Advisory issued at 12:00 hours.
For real-time winter travel updates, please click this link: https://t.co/KkKldKUlLQ#DelhiAirport #PassengerAdvisory #DELAdvisory pic.twitter.com/cSX0N8Og0w— Delhi Airport (@DelhiAirport) December 21, 2025
Earlier in the morning, Delhi airport had also issued a travel advisory at 8 am, affirming that flight operations were functioning smoothly. Passengers were encouraged to keep in contact with their airlines for the latest updates regarding flight schedules and any operational adjustments.
Passenger Advisory issued at 08:00 hours.#DelhiAirport #PassengerAdvisory #DELAdvisory pic.twitter.com/5HwS6C3d0F
— Delhi Airport (@DelhiAirport) December 21, 2025
In the meantime, the Airports Authority of India (AAI) issued a statement on Sunday, alerting passengers that foggy conditions in parts of northern India are hampering visibility and could potentially lead to delays or alterations in flight operations at certain airports.
As reported by ANI, the AAI recommended that travelers verify flight updates with their airlines through official channels and factor in extra time for travel to the airport and completing necessary formalities. To support passengers amid the adverse weather, AAI has deployed assistance teams at affected airports to provide on-ground support and guidance.
AAI emphasized that passenger safety and convenience are their top priorities and shared customer support contact numbers for major airlines to help travelers access timely flight information.
According to ANI, passengers of IndiGo can reach out at 01244973838, Air India at 011 6932 9333, SpiceJet at +91 (0)124 4983410 and +91 (0)124 7101600, and Air India Express at +91 124 443 5600 and +91 124 693 5600. Akasa Air has provided the contact number 9606112131, while Alliance Air passengers can call 044-35113511.
Separately, IndiGo released a travel advisory late on December 20, cautioning that early-morning fog across Delhi and parts of northern India could lead to sudden visibility drops and impact flight operations.
The airline assured that its teams would remain on high alert through the night, monitoring weather conditions continuously. Passengers were advised to check flight statuses before departing for the airport and consider rebooking or requesting refunds if their flights were affected.
Travel Advisory
Early-morning fog is set to impact visibility across Delhi and parts of northern India. Visibility may decrease abruptly during these hours, affecting flight operations.
Our teams will stay fully prepared through the night, closely monitoring the weather minute by minute…
— IndiGo (@IndiGo6E) December 20, 2025
Flight operations have experienced disruptions for several days at Delhi and other northern Indian airports as persistent dense fog continues to hinder visibility, a recurring issue during the winter months.
