There's greater interest in charter bus rentals in the spring and summer, when they are ideal for graduation parties, family reunions and weddings. In addition, the seasonal variations can differ based on geography-winters see a greater demand for a charter bus rental in Florida than New England, but during the summer, New York City is a more popular destination that Phoenix. When you want to travel - Like most industries, bus charters have peak seasons and off-seasons, and costs vary accordingly. The actual cost of a charter bus trip will vary, based on: What Factors Affect the Cost of a Charter Bus? There are such a wide range of options available! Here are some of the variables that affect the cost of a charter bus trip. Okay, we have convinced you that charter bus travel will be easier on your pocketbook than other options, but just how much will it cost? Interestingly, one of the advantages of charter bus travel that makes it an attractive option for travelers, also makes it more difficult to nail down an exact cost.