AAA Says Tennessee Gas Prices Held Steady For A Second Week Ahead Of Memorial Day. The State Average Remains Two Dollars And Seventy-Two Cents Per Gallon — That’s Forty-Four Cents Less Than This Time Last Year. The National Average Has Inched Up To Three Dollars And Seventeen Cents As Summer Driving Season Kicks Off. Jackson, Nashville, And Johnson City Continue To See The Highest Prices In Tennessee. Tennessee Has Inched Upward To Become The 2nd Least Expensive State In The Nation For Gas Prices.