At an average salon, layered bangs are not an expensive change up to your look. As long as you are not receiving another service, bangs should not put you back more than $50 to $100.  There are outliers to these numbers as this is an average estimate, so contact your local salon for their specific pricing. If you choose to get a full haircut, including adding layered bangs, expect to pay more. If you add on any other treatments or coloring processes, add more money to that price for a more accurate amount you can anticipate paying.