Gas Prices In Tennessee Have Dropped Three Cents Over The Past Week, Bringing The State Average To $2.64 Per Gallon. That’s Six Cents Lower Than A Month Ago And 12 Cents Cheaper Than This Time Last Year. AAA Expects Near-Record Holiday Travel This Year, With Over 2.7 Million Tennesseans Hitting The Road. Road Travel Will Be The Most Popular Mode, With Gas Prices Likely To Remain Below Last Year’s Levels. The State’s Most Expensive Gas Is In Johnson City And Memphis At $2.71 Per Gallon, While Chattanooga Offers The Lowest At $2.55.