An Air India Express flight from here to Saudi Arabia had to make an emergency landing at Thiruvananthapuram international airport on Saturday after a crack in the windshield of the aircraft was detected, an airport official said.

After taking off from here at around 7.52 am, less than an hour into the flight, the pilots noticed the crack in the windshield of the airplane prompting them to turn back to Thiruvananthapuram for an emergency landing at around 8.50 am, the official said.