Delhi flights: 110 IndiGo flights to and from Delhi cancelled, data shows; airlines issue advisory for dense fog

Delhi flights update LIVE: At least four flights have been cancelled at Srinagar airport on 21 December, with three being to Amritsar and one to Delhi, due to adverse winter weather conditions, ANI reported.

The IndiGo flights tracker showed that at least 52 routes to or from Delhi airport were delayed on 21 December 2025, till 11.30 am.

Domestic carrier IndiGo has issued an advisory early during the day warning of possible flight delays due to the dense fog. Since Friday, the Airports Authority of India (AAI) and several airlines have warned of fog-induced flight delays.

Here are live updates related to flight delays and reschedules amid dense fog conditions on 21 December:

6:41 pm: As many as 110 flights were cancelled and over 370 services delayed at Delhi airport on Sunday due to low-visibility conditions caused by dense fog.

An official told PTI that 59 arrivals and 51 departures were cancelled at the airport.

According to latest information available on flight tracking website Flightradar24.com, more than 370 flights were delayed and the average delay time was around 26 minutes for departures at the airport.

1:11 pm: A total of 97 flights were cancelled and over 200 delayed at the Delhi airport on Sunday, caused by low visibility conditions amid a thick blanket of fog that has covered the national capital.

According to latest information available on flight tracking website Flightradar24.com, more than 200 flights were delayed and the average delay time was around 23 minutes for departures at the airport.

1.05 pm: The Airports Authority of India (AAI) has shared customer support numbers that passengers can use to get real-time information about their flight status.

• IndiGo passengers can reach out on 01244973838 for assistance.
• Air India passengers can reach out on 01169329333 for assistance.
• SpiceJet passengers can reach out on 91(0)1244983410 and 91(0)1247101600 for assistance.
• Air India Express passengers can reach out on 911244435600 and 911246935600 for assistance.

11.30 am: According to the IndiGo flight cancellations data for 21 December 2025: At least 52 flights arriving or departing from Delhi airport have been cancelled today.

You can also check the full list on the official IndiGo website here — https://www.goindigo.in/information/flight-cancellations.html

11 am: Domestic carrier SpiceJet gave an update for 21 December, stating that all arrivals and departures from Amritsar, Ayodhya, Bagdogra, Bengaluru, Darbhanga, Delhi, Gorakhpur, Jammu, Patna and Varanasi are likely to be affected due to bad weather.

“Passengers are requested to keep a check on their flight status via http://spicejet.com/#status,” it added.

10 am: Delhi airport has through its official X account, given an update on the situation, noting that operations are running “as normal”. It also asked passengers to connect with respective airlines for latest updates on flight schedules.

9 am: Parts of Delhi experienced dense fog and alarmingly high pollution levels on 21 December. Overall AQI recorded at a ‘very poor’ 390 around, data from the Central Pollution Control Board (CPCB) showed.

Amid this, the Commission for Air Quality Management (CAQM) has invoked all measures under the Graded Response Action Plan (GRAP) Stage-IV across Delhi-NCR. This includes: Ban on non-essential construction activities, the entry of certain diesel vehicles, and enhanced enforcement to curb pollution sources.

8 am: Visuals from around the capital city showed a dense layer of toxic smog, with AQI levels in some parts reaching as high as 358.

7 am: Dense fog blankets capital city, AQI in ‘very poor’ category

6.46 am: Passengers have been advised to check their latest flight status before leaving for the airport. You can do so via the following link — bit.ly/3ZWAQXd.

Those passengers, whose flights are affected, can rebook or request a refund via the airline's official website, here — goindigo.in/plan-b.html.

6.30 am: IndiGo has issued a passenger travel advisory warning of possible flight disruptions across Delhi and several parts of northern India due to dense fog on today, 21 December (Sunday).

The airline in a statement said low visibility in the early morning could impact flight operations, but that its operations teams “remain fully prepared and closely monitoring weather conditions on a minute-by-minute basis”.

6.20 am: On 20 December, 66 arrival and departure flights were cancelled at Delhi's IGAI airport on Saturday. The airport itself also issued a passenger advisory stating that low-visibility procedures are underway.

(With inputs from ANI)