New Delhi: An Air India flight to Chicago from Hyderabad via Delhi was delayed by over 18 hours due to a technical glitch in the aircraft, causing inconvenience to around 300 passengers, who had to spend more time on ground than they would have taken to fly to their destination.

The Air India plane, a Boeing 777-200ER, operating as flight (AI-126), had arrived at IGI airport here from Hyderabad last evening and was to operate as flight number AI-127 to Chicago.