Beneful is one of the most popular and notorious dog food companies across America. Walmart is known to carry a quality selection for Beneful dog foods. The price of dog food at Walmart can range anywhere from 2 dollars to 34 dollars because it all depends on what you buy and the amount in which you buy it in. Wet foods at Walmart will usually cost around 27 dollars and the Beneful dry foods will cost close to 14 dollars. Walmart even carries a wet food Beneful healthy weight with real Salmon option. If you order any Beneful foods online, Walmart will offer you their special two day shipping deal.