Tennessee Gas Prices Have Fallen Six Cents In The Past Week, With The State Average Now At $2.69 Per Gallon. That’s 12 Cents Lower Than Last Month And 25 Cents Cheaper Than A Year Ago. AAA Says This Could Mean The Cheapest Thanksgiving Gas Prices Since 2020, As Over 1.9 Million Tennesseans Are Expected To Travel 50 Miles Or More For The Holiday. The Most Expensive Gas Is In Johnson City At $2.77, While Chattanooga Drivers Enjoy The Cheapest At $2.61. Nationally, Gas Averages $3.07, Nearing Its Lowest Since 2021. Visit Gasprices.Aaa.Com For Updates.