Jet fuel is the biggest cost expenditure of airlines  Jet fuel costs of the three major state-owned airlines account for about 40% of the total cost  In recent years, with the continuous rise of oil prices, the operating costs of airlines have continued to increase
The standard for levying fuel surcharges other than air ticket prices has been increased.
 In this regard, some insiders believe that although airlines are facing huge pressure from rising oil prices, they will not increase the price of air tickets