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Live · Updated 11 hours ago

Diesel prices in
Connecticut.

The median diesel price in Connecticut is $5.57/gal +$0.67 versus the national median, the 5th most expensive of 49 states with data. Tracked across 25 truck stops, refreshed multiple times per day.

Data window: last 7 days · 32 observations in Connecticut

Cheap end (p10)
$5.12
10% of stations
Median (p50)
$5.57
Connecticut midpoint
Expensive end (p90)
$5.70
10% of stations
Spread
$0.58
p90 minus p10

What the $0.58 spread means for a fleet.

Stations in Connecticut range from $5.12 at the cheap end to $5.70 at the expensive end. On a single 250-gallon tractor fill, the difference between a cheap-end station and a median-priced one is about $114 — on one fill, for one truck, before any negotiated discount is applied.

That spread is exactly where fuel optimization earns its keep: ValveRide Flow routes every dispatch to the right stop for the route, applies your negotiated contract rates on top of the posted price, and accounts for state fuel-tax differences so the net cost — not the pump sign — drives the decision.

Running a lane through Connecticut?

Get a free, engine-generated fuel plan for any origin and destination — where to stop, how many gallons, at what price, with Connecticut's live pricing baked in. In your inbox in about two minutes. No account needed.

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Cross-border math

Connecticut vs. neighboring states

Diesel runs $0.17/gal cheaper at the median across the border in Rhode Island. On routes that cross, where the truck fuels changes the cost of the load.

StateMedianvs CTCheap (p10)Stations
Connecticutthis page$5.57$5.1225
Rhode IslandRI$5.40−$0.17$5.162
MassachusettsMA$5.50−$0.08$5.2544
New YorkNY$5.60+$0.02$5.30117
Questions, answered

Connecticut diesel prices, explained.

What is the average diesel price in Connecticut today?

The median diesel price in Connecticut is $5.57 per gallon across 25 tracked truck stops (last 7 days, 32 price observations). The cheapest 10% of stations are at or below $5.12/gal, and the most expensive 10% are at or above $5.70/gal.

Is diesel cheaper in Connecticut than the national average?

Connecticut runs +$0.67/gal versus the national median of $4.90, making it the 5th most expensive of 49 states with data. Fleets routing through Connecticut often save by timing fills in cheaper neighboring states where the route allows.

How much can a fleet save on diesel in Connecticut?

The spread between the cheap end and expensive end in Connecticut is $0.58/gal right now. On a 250-gallon fill, choosing a cheap-end station over a median-priced one saves about $114 — before contract discounts and IFTA tax positioning, which is what ValveRide Flow layers on automatically for fleets.

Methodology, percentile definitions, and the full 50-state table live on the national diesel prices page.

Your trucks run through Connecticut.
Flow makes every fill count.

Live prices, your negotiated contracts, and state fuel-tax math — applied automatically on every dispatch, with every claimed dollar reconciled against a real transaction.