Gas in the St. Louis area is down 7¢ from last week, now averaging $3.83 a gallon. Filling a 15-gallon tank in the St. Louis area costs about $18 more than a year ago. It is $3.83 a gallon, $1.17 more than a year ago. Filling a 15-gallon tank costs about $18 more. It is $3.83 a gallon, down 7¢ from last week but still $1.17 above a year ago. Prices are AAA's daily averages for regular gas, last updated October 20.

Local Gas Prices Saint Louis, MO Loading...