A new Bennington pontoon boat generally costs between about 21,000 and over 245,000 dollars, depending on the model, size, and features. Entry-level Bennington pontoons in the S Line start in the low 20,000s, while mid-range models usually run from about 30,000 to 70,000 dollars. High-end Bennington tritoons in the Q and QX lines start around 70,000 dollars and can climb past 245,000 dollars when loaded with big twin engines and luxury options. Used Bennington pontoons cost much less, sometimes starting around 10,000 to 15,000 dollars. The final price depends on length, the number of tubes, the engine, and the options you choose.