Diesel Prices in Connecticut Today
Average diesel price in Connecticut: $6.442 per gallon on October 20, 2026. EIA U.S. weekly average $6.276. Current
What is the price of diesel in Connecticut today?
Diesel in Connecticut averages $6.442 per gallon (AAA daily state average, October 20, 2026), $0.166 more than the U.S. average of $6.276. Connecticut ranks #38 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.02 per mile on fuel in Connecticut.
per gallon, October 20, 2026
U.S. average $6.276
of 51 (1 = cheapest)
semi truck, today price
Fuel cost per mile in Connecticut
Estimated diesel cost at the today Connecticut price of $6.442 a gallon, using fuel economy calibrated to FHWA and NACFE data.
| Truck | Fuel per mile | Fuel per 1,000 miles |
|---|---|---|
| Dry Van38,000 lbs, ~6.3 mpg | $1.02 | $1,025 |
| Reefer38,000 lbs, ~6.0 mpg | $1.07 | $1,067 |
| Flatbed40,000 lbs, ~6.0 mpg | $1.07 | $1,065 |
| Hotshot12,000 lbs, ~8.9 mpg | $0.72 | $723 |
| Box Truck7,000 lbs, ~9.1 mpg | $0.71 | $706 |
Your numbers depend on load weight, speed, terrain and idling. Enter them in the truck fuel cost calculator for an exact estimate.
Frequently asked questions
What is the price of diesel in Connecticut today?
Diesel in Connecticut averages $6.442 per gallon (AAA daily state average, October 20, 2026), $0.166 more than the U.S. average of $6.276. Connecticut ranks #38 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.02 per mile on fuel in Connecticut.
How much does it cost to fill a semi truck in Connecticut?
At $6.44 a gallon, 150 gallons of diesel costs about $966 and 200 gallons about $1,288 in Connecticut at the today average.
Is diesel cheaper in Connecticut than nearby states?
Among nearby states in the same region, the cheapest today is Massachusetts at $6.336 a gallon. Connecticut is $6.442.
How often are Connecticut diesel prices updated?
The page checks for new prices twice a day. AAA publishes daily state averages; the EIA weekly regional average is shown only if a state has no daily value. If a source stops updating, the last value stays with its real date and a stale label.
| Massachusetts | $6.336 |
| Rhode Island | $6.339 |
| New Hampshire | $6.368 |
| Vermont | $6.395 |
| Maine | $6.431 |
Source: AAA daily state average, October 20, 2026. All 50 states
Running freight through Connecticut?
Texas Solutions dispatches semis for 5%, hotshots for 7% and box trucks for 8% of weekly gross. We plan lanes to cut empty miles and fuel.
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