Operations at the Indira Gandhi International Airport here largely remained unaffected today even as the airport witnessed fog in the wee hours.
Only one flight was delayed due to weather at Delhi. However, 15 flights were delayed and another five cancelled due to operational reasons and bad weather at destination, an airport official said.
The fog started to descend at the airport around midnight last night and the runway visibility dropped to 25 metres around 2 a.m. on the third runway (29/11).
The visibility dropped to 225 metres on the main runway (28/10) around 3 a.m. and remained so for about an hour after which started to improve on both the runways.
The runway visibility improved to more than 2,000 metres on runway 28/10 by 5.20 a.m. and on the third runway from 5.50 a.m. So, the operations remain unaffected as most of the domestic departures begin from 6 AM, they said.