Diesel prices from
Illinois to Pennsylvania.
The most direct path from Illinois to Pennsylvania crosses 4 states (Indiana, Ohio in between). The cheapest median on the lane is $6.00/gal in Indiana; the most expensive is $6.30/gal in Pennsylvania.
Data window: last 7 days · 1,801 observations · 1,043 truck stops on the lane
Where to fill
Outbound, fuel in Indiana. Coming back, same state.
Illinois to Pennsylvania: Indiana is state 2 of 4 on the path and carries the lowest median. Pennsylvania back to Illinois: it is state 3 of 4, so the fill lands later in the run. Either way, a 250-gallon fill in Indiana runs about $75 less than the same fill in Pennsylvania.
The state tells you where the price is; it does not tell you which exit, how many gallons the tank needs to reach it, or whether the IFTA math flips the answer. That is the per-dispatch work ValveRide Flow does automatically, with your contract rates on top of the posted price.
State by state
Every state on the Illinois to Pennsylvania path
States in order from Illinois. Cheap and expensive are the 10th and 90th percentile of tracked stations in each state; spread is the gap between them.
| # | State | Cheap (p10) | Median | Expensive (p90) | Spread | Stations |
|---|---|---|---|---|---|---|
| 1 | IllinoisIL | $5.80 | $6.10 | $6.30 | $0.50 | 340 |
| 2 | IndianaINcheapest median | $5.76 | $6.00 | $6.20 | $0.44 | 206 |
| 3 | OhioOH | $5.60 | $6.00 | $6.16 | $0.56 | 278 |
| 4 | PennsylvaniaPA | $6.00 | $6.30 | $6.70 | $0.70 | 219 |
The state sequence is the most direct land-border path between Illinois and Pennsylvania by geography, not a routed itinerary; a dispatched route can clip a neighboring state this list skips.
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Questions, answered
Illinois to Pennsylvania diesel prices, explained.
Where is diesel cheapest between Illinois and Pennsylvania?
Of the 4 states on the most direct Illinois to Pennsylvania path, Indiana has the lowest median diesel price at $6.00 per gallon across 206 tracked truck stops. The cheapest individual stations on the lane are in Ohio, where the cheapest 10% post $5.60 or less.
Is diesel cheaper in Illinois or Pennsylvania?
Illinois is cheaper: median $6.10 versus $6.30 in Pennsylvania, a $0.20/gal difference at the median.
How much can a truck save on the Illinois to Pennsylvania lane?
The median-to-median gap between the cheapest state on the lane (Indiana, $6.00) and the most expensive (Pennsylvania, $6.30) is $0.30 per gallon. On a 250-gallon fill that is about $75 on one truck, before contract discounts and IFTA tax positioning, which is what ValveRide Flow layers on automatically for fleets.
Prices are pump-posted retail percentiles from tracked truck stops in the 48 contiguous states, never contract or discounted rates. Methodology and the full state table live on the national diesel prices page.
Related lanes
Other lanes out of Illinois and Pennsylvania
All 42 lanes: diesel prices by lane. Interstate view: diesel prices by corridor.
You run Illinois to Pennsylvania.
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.