US national average gas prices saw a slight dip to $4.459 per gallon after a sharp rise for Memorial Day, the highest in four years. Significant price disparities persist, with West Coast and non-contiguous states like California and Hawaii facing the highest costs, while Southern and Midwestern states remain below average.

The national average price of regular gas continued its 2026 tradition of fluctuating, with Tuesday's average falling below $4.50 per gallon.

US national average gas prices saw a slight dip to $4.459 per gallon after a sharp rise for Memorial Day, the highest in four years. Significant price disparities persist, with…