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Prosper Gas Prices Climb to $3.9114 as Monthly Costs Rise — September 30, 2026

Regular unleaded averages $3.9114 in the Dallas area, up from yesterday, down from last week and below the Texas average.

Xenia Yoder

September 30, 20261 min read

Gas prices at the pump in Prosper Texas - Illustration Jake Team LLC

Prosper, Texas — Gas prices in the Dallas area averaged $3.9114 per gallon for regular unleaded on September 30, 2026, according to AAA, up from $3.8284 yesterday. That is down from $3.9500 a week ago and higher than $3.7440 a month ago.

The statewide average in Texas stands at $3.9270, while the national average is $4.4343. Drivers in the Dallas area are paying below the state average and below the national average.

The Dallas average remains below its AAA recorded high of $4.8370. Regular prices are about 17 cents higher than a month ago. Compared with a year ago, when the metro average was $2.7058, drivers are paying about 121 cents more per gallon.

Diesel in the Dallas area averages $5.7744 per gallon, AAA reported.

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Xenia Yoder

Xenia Yoder writes about community life, schools, public safety, and local events in Prosper.

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