Transport Secretary Sean Duffy has pushed back on suggestions that Spirit Airlines had to shutdown because of rising fuel costs. Gas and oil prices have risen sharply since the start of the Iran war , with the national average for a gallon of regular gas sitting at $4.433 - a rise of around a dollar since the war began, and almost half a dollar more than it cost a month ago. Increased fuel costs can push costs of other goods and services higher , with experts already highlighting a jump in