US airlines fuel bills rose by $3 billion in May

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- Fuel costs for U.S. airlines jumped 85% in May to nearly $6.7 billion as the Middle East conflict drove ‌up prices, the U.S. Transportation Department said Monday.

Airlines spent $3.62 billion on fuel in May 2025 compared with $6.66 billion in the same month this year. The cost per gallon of fuel in May ​was $4.09, up $1.88 over May 2025, USDOT added. Jet fuel costs in recent weeks have fallen sharply as tensions eased between Iran and the United States.