Cheapest diesel on I-80, I-10, I-40, I-70 and I-95 today
OTR drivers running the five main US trucking corridors face per-tank price swings of $60-120 between state lines. Today's cheapest crossings: Oklahoma on I-40, Missouri on I-70, Texas on I-10. [EIA · 13 Jul 2026]
I-95 (Maine to Florida)
The eastern seaboard runs Maine ($3.79 diesel) southward through NH, MA, CT, NY, NJ, DE, MD, DC, VA, NC, SC, GA, to Florida ($4.88). Cheapest buy points: South Carolina ($3.47) and Florida ($4.88). Maryland tax stack makes the Delaware-Maryland transition consistently profitable to time.
I-80 (San Francisco to New York)
Transcontinental I-80 crosses California ($5.04), Nevada ($4.18), Utah ($3.85), Wyoming ($3.65), Nebraska ($3.55), Iowa ($3.58), Illinois ($3.79), Indiana ($4.88), Ohio ($3.69), Pennsylvania ($4.07), New Jersey ($3.74). Cheapest stretch: Wyoming through Nebraska. Most expensive stretch: California into Nevada.
I-70 (Utah to Maryland)
Mid-band corridor. Cheapest tank: Oklahoma extension via I-44 ($3.42), then Missouri ($3.49). Most expensive: Maryland ($3.78).
I-40 (Barstow to Wilmington)
I-40 hits California, Arizona, New Mexico ($3.50), Texas ($3.35), Oklahoma ($3.42), Arkansas ($3.49), Tennessee ($3.50), North Carolina ($3.55). The TX-OK-AR stretch is the cheapest 700-mile run for diesel in the country today.
I-10 (Los Angeles to Jacksonville)
I-10 runs the Sun Belt. Cheapest tanks: Texas, Louisiana ($3.40), Mississippi ($3.37), Alabama ($3.45). LA-to-AZ stretch is the priciest segment.
IFTA notes
Quarterly IFTA filings recalculate fuel tax owed to each jurisdiction by miles driven; cheap buy points can still incur tax true-up. The IFTA Quarterly Tax Matrix sets the current state-by-state diesel surcharge rates.