U.S. Jet-A Fuel Costs Rise In May 2026

Jet-A fuel prices across the United States averaged $8.57 per gallon in May 2026, reflecting a significant year-over-year surge of $2.09 — roughly a 32 percent increase compared to May 2025 — according to the Aviation Research Group's monthly survey of fixed-base operators. The figure represents full retail pricing inclusive of taxes and fees, making it a direct proxy for what operators and flight departments are paying at the pump. Despite the sharp annual increase, prices edged down modestly from April's level by six cents per gallon, offering limited but notable evidence that the upward trajectory may be leveling off in the near term.

Regional price volatility remains a significant operational consideration in May 2026, with the Western Pacific and Great Lakes regions pulling in opposite directions. The Western Pacific posted the sharpest single-month increase at 39 cents per gallon above April levels, a move that will disproportionately affect operators flying along the Pacific Coast, trans-Pacific ferry routes, and Hawaiian island hops. Conversely, the Great Lakes region saw prices fall 47 cents per gallon from April — a meaningful relief for corporate flight departments headquartered in Chicago, Detroit, and Minneapolis, as well as the charter and fractional operators that service that corridor heavily. The spread between regions in any given month underscores the value of proactive fuel planning, tankering analysis, and supplier contract management for high-cycle operators.

For airline, charter, and business aviation operators, a national average above $8.50 per gallon has direct and material consequences for direct operating costs. Jet-A typically represents 30 to 45 percent of variable trip costs in turbine aircraft, and at these price levels, the economics of trip routing, alternate airport selection, and fuel stop planning shift measurably. Part 135 and Part 91K operators with fixed-fee or all-inclusive management agreements face particular margin pressure when retail pump prices spike, while ad hoc charter operators may find fuel surcharges increasingly difficult to absorb or pass through without client friction.

The $2.09-per-gallon year-over-year increase sits against a broader backdrop of sustained energy market pressure and the ongoing structural tightening of refinery output dedicated to aviation-grade distillates. Jet-A supply chains have faced compounding challenges including refinery capacity constraints, geopolitical supply disruptions, and sustained demand recovery in both commercial and business aviation since the post-pandemic rebound. While the six-cent month-over-month decline is too small to signal a definitive trend reversal, it may reflect some easing in crude input costs or seasonal demand modulation heading into summer flying season — a period that historically brings elevated fuel consumption across all segments of the industry.

Flight departments and operators focused on cost-per-hour benchmarking will likely need to revise their annual budget assumptions given the magnitude of the year-over-year shift. Fleet operators running multiple turboprops or light jets, where fuel burn per seat-mile is proportionally higher than wide-body lift, are particularly exposed to sustained elevated pricing. Airlines with robust hedging programs may be partially insulated in the near term, but unhedged operators across the business aviation sector face real pressure to review fuel procurement strategies, consolidate FBO relationships for volume pricing, and reassess tankering thresholds as May figures are absorbed into operational planning cycles.