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UK todayPetrol174.9pDiesel199.9p6,537 forecourtsUS this weekRegular$4.47Diesel$6.38EIA average

Gas prices in Delaware

Regular gas costs an average of $4.41 a gallon in Delaware, and diesel $6.53, based on the Central Atlantic regional figure for the week of September 28, 2026. That's 6 cents below the national average.

EIA doesn't publish a separate average for Delaware, so this is the Central Atlantic average, which covers Delaware. Prices at individual stations vary.

FuelDelawareU.S. average
Regular$4.41$4.47
Diesel$6.53$6.38

What gas costs in Delaware

Filling a 15-gallon tank with regular costs about $66.15. A 300-mile road trip in a car that gets 25 mpg uses 12 gallons, which comes to about $52.92.

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Frequently asked questions

How much is gas in Delaware right now?

Regular gas averages $4.41 a gallon based on the Central Atlantic regional figure for the week of September 28, 2026.

How much is diesel in Delaware?

Diesel averages $6.53 a gallon based on the Central Atlantic figure.

How much does it cost to fill up in Delaware?

A 15-gallon tank of regular costs about $66.15 at the average price.

Where do these prices come from?

The U.S. Energy Information Administration surveys retail gas stations every week and publishes averages for the nation, regions and nine states every Monday.

Gas prices in Central Atlantic over time

Since 6 October 2025, the typical price of regular gas has risen by 130 cents.

$2.45$3.58$4.72$5.85$6.99NovJanMarMayJulSept
RegularDiesel

Weekly averages from the U.S. Energy Information Administration. See national price history.

Gas prices in other states