Pakistan International Airlines cancelled tickets for over 100 passengers on Thursday for a flight to Karachi, prompting protests by those affected.
Passengers staged a protest at the Benazir International Airport, Islamabad after failing to get seats on PK-301.
The protesters said that they had been issued new tickets for a flight tomorrow.
Meanwhile, the flight inquiry refuted these allegations saying that all flights from Islamabad, including the one to Karachi, had taken off on time.