Delta Air Lines CEO Ed Bastian has faced backlash after suggesting that the company may not lower its high fares even if oil prices stabilize. The comments sparked anger among travelers online. The ongoing Iran war has disrupted a key global oil supply route, contributing to increasing airline fuel costs. Despite this, Delta expects its fuel bill to rise by about $2 billion this quarter after jet fuel prices have significantly increased since late February. United Airlines is raising ticket prices by up to 20% to offset rising fuel costs, and some airlines have already added fuel surcharges onto longer routes.