Air India has cancelled two international flights to the Gulf region from Kerala and two other flights in domestic sector today following a cut in the supply of aviation turbine fuel by oil companies. Air India sources in Kochi said the Kozhikode-Muscat, Kochi-Sharjah flights in the international sector and the Kochi-Bangalore, Thiruvananthapuram-Chennai flights in the domestic sector have been cancelled. Oil companies had reduced the supply of aviation turbine fuel following Air India's failure to clear dues.