yesterday. $1.99update. There are 102 Regular gas price reports in the past 5 days in Montgomery, AL. The average Regular gas price in Montgomery, AL is $2.05, which is $0.74 lower than U.S. national average Regular gas price $2.79.The lowest Regular gas price is $1.69 of Entec located at 1024 Ann St, Montgomery, AL 36107.1.99update. There are 102 Regular gas price reports in the past 5 days in Montgomery, AL. The average Regular gas price in Montgomery, AL is $2.05, which is $0.74 lower than U.S. national average Regular gas price $2.79. The lowest Regular gas price is $1.69 of Entec located at 1024 Ann St, Montgomery, AL 36107.