Departures and arrivals were as per schedule, airport sources said, adding though there was shallow fog in the morning, the visibilty remained above 1500 metres enabling normal operations.
Some flights were delayed and some cancelled but they were due to operational reasons, they said.
The sky over the airport largely remained clear last night and this morning, except for a few hours when airport witnessed moderate fog and visibility dropped to 1,500 metres on the main runway.
Flight operations were badly hit at the IGI Airport due to dense fog for past three days leading to over 300 flights getting delayed by several hours.
MeT department has predicted shallow fog for tomorrow morning and visibility may drop to 200 metres.