Archive · 18 Dec 2025
Fog and Poor Air Quality Disrupt Flights and Trains in Delhi
On Wednesday and Thursday, many flights and trains in Delhi were canceled or delayed because of thick fog and bad air quality.
In Delhi, 126 flights were canceled, and at least 40 were delayed.
The air quality in Delhi was very poor, with an Air Quality Index (AQI) of 328 in the morning and 401 the previous day, which is considered 'severe'.
Air India canceled 40 of their flights and started a special program called 'Fog Care' to help passengers.
This program lets people reschedule their flights or get a full refund without any extra charges if their flight is affected by the weather.
In Chennai, 11 flights were also canceled because of the bad weather in Delhi and other northern states.
More than 22 trains were delayed, causing trouble for passengers.
The fog also made driving difficult in several areas, with vehicles moving slowly on major roads and highways.
126 flights were canceled and at least 40 were delayed at Delhi airport due to dense fog and poor air quality.
Air India canceled 40 flights and introduced 'Fog Care' for affected passengers, allowing rescheduling or full refunds.
Delhi's Air Quality Index (AQI) was 328 in the morning and 401 the previous day, categorized as 'very poor' to 'severe'.
Chennai International Airport also saw 11 flight cancellations due to adverse weather conditions in Delhi and northern states.
More than 22 trains were delayed in Delhi due to the dense fog, causing significant inconvenience for passengers.
- Who
- Airport authorities, passengers, Air India, train services, residents
- What
- Flight and train cancellations and delays due to dense fog and poor air quality
- When
- Wednesday morning and Thursday morning, December 9, 2025
- Where
- Indira Gandhi International Airport, Delhi, Chennai International Airport, and various train routes in Delhi
- Why
- Dense fog, adverse weather conditions, and poor air quality
- Flight Cancellations at Delhi Airport
- 126 (49 departures, 77 arrivals)
- Flight Delays at Delhi Airport
- At least 40
- Air India Cancellations
- 40 flights
- Air Quality Index (AQI) in Delhi
- 328 (Very Poor) to 401 (Severe)
- Fog Care Initiative
- Complimentary reschedule or full refund
- Affected Airports
- Indira Gandhi International Airport, Chennai International Airport
- Flights Cancelled in Chennai
- 11 (4 departures, 7 arrivals)
- Trains Delayed in Delhi
- More than 22
- AQI Categories
- 0-50 (Good), 51-100 (Satisfactory), 101-200 (Moderate), 201-300 (Poor), 301-400 (Very Poor), 401-500 (Severe)
Sources
Air India Delhi to Amsterdam flight forced to return shortly after take-off, technical snag suspected
11 Flights At Chennai Cancelled As Dense Fog Disrupt Operations In North India
10 Flights Cancelled At Delhi Airport Due To Low Visibility
IndiGo, Air India, and SpiceJet issue travel advisories as dense fog disrupts flight operations
Air India Warns of Possible Flight Disruptions Due to Dense Fog, Urges Passengers to Check Status
Visibility drops to 100 metres in Delhi; North India flights hit as dense fog disrupts air traffic
Air India warns of possible flight disruptions due to dense fog, urges passengers to check status
At Least 40 Flights Delayed, Trains Run Late As Fog Hits Delhi
Delhi airport, airlines issue advisories as dense fog disrupts visibility
