US passenger airlines collectively spent over $5 billion on jet fuel in March, marking a substantial 56% increase, or $1.8 billion, compared to February’s expenditures, according to figures released by the US Transportation Department on Wednesday. The cost per gallon of fuel reached $3.13 in March, an increase of 74 cents and 31% over the previous month. Fuel consumption also saw a 20% rise during March. These surging costs are attributed to disruptions in global oil markets, particularly shipping through the Strait of Hormuz , following the U.S.-Israeli war with Iran. This situation has plunged the air travel industry into its most significant crisis since the COVID-19 pandemic. For context, airlines spent $3.88 billion in March 2025 on jet fuel, far below the $5.06 billion they spent in March of this year. In response to the escalating expenses , major US carriers have implemented fare hikes, increased baggage fees, and cut some routes, alongside other cost-saving measures.…