Online CNA classes are generally much less expensive than their traditional counterpart. The reason for this actually less to do with the base price and more to do with the fees associated with each program.
The most costly part of taking traditional CNA classes in a classroom is the amount of fees you have to pay for the privilege of sitting at a desk a few times a week. When you go to a physical campus, you have to consider the cost of gas, losing a few hours of pay at work so you can take the classes, and the amount of money you will end up paying in small amounts. Things like a parking sticker, physical textbooks, materials for taking notes, lab fees, and extra camps costs add up quickly.
Online programs do have some downsides like not seeing people in person every week, but it can be much more affordable to take the classes at home. You can find more information about CNA classes by visiting https://www.cnaclasses101.com/certification/.