Freight Costs Jump 21.8% Annually as Diesel Tops $5/Gallon

S. trucking market entered 2026 experiencing a structural supply-side shift that fundamentally altered the carrier-shipper dynamic. 6%, a stark divergence driven by capacity constraints rather than demand acceleration. Diesel prices topped $5 per gallon in March, with the largest weekly price increase on record, triggering widespread carrier exits among smaller fleets and owner-operators who lack the financial flexibility to absorb sustained fuel costs.

This environment has restored pricing power to carriers after a three-year freight recession. S. 9, highlighting how severely tightened truckload capacity is outpacing actual freight demand. Spot rates climbed nearly 12% quarter-over-quarter, narrowing the gap with contract rates and forcing shippers to absorb higher baseline transportation costs across both negotiated and market-driven lanes.

Regional disparities emerged, with the Midwest leading in volume and spending growth, while Southwest and Southeast markets saw shipment declines paired with double-digit spending increases—evidence of how widespread the capacity squeeze has become. For supply chain professionals, this quarter represents a critical inflection point requiring immediate cost mitigation strategies and procurement planning adjustments. Unlike typical rate spikes tied to demand surges, this environment emerged despite stable shipper demand, creating an unusual operational challenge where traditional demand-forecasting models may underestimate cost pressures. The sustainability of these rate levels depends heavily on whether diesel prices stabilize and whether further carrier exits accelerate market consolidation among larger, more resilient fleets.