A sharp spike in global jet fuel prices triggered by rising tensions between the United States, Israel and Iran has begun to impact aviation markets worldwide. Over the past few weeks, aviation turbine fuel has shot up from 85 to 90 dollars per barrel to nearly 150 to 200 dollars per barrel. Since fuel accounts for nearly 25 per cent of operating costs for most airlines, carriers are now resorting to fare hikes and financial restructuring to stay afloat.