IndiGo flights to get costlier as airline raises fuel charges. IndiGo said it will raise fuel charges on domestic and international flights amid elevated aviation turbine fuel (ATF) prices. The charges will range from ₹375 to ₹1,300 for domestic flights and from ₹1,000 to ₹10,000 for international flights. The revised charges will apply to all new bookings made from 12:01 am on October 6.