How much does a travel agent cost? The cost of using a travel agent is generally marginal, and often, they won't charge you at all. Much of their money comes from commissions the hotels and wholesalers pay them. Before you decide to book with a travel agent, inquire whether or not they charge fees.

Others may charge a flat rate, anywhere from $100-$500 on average. Some advisors charge an hourly rate to research, plan or arrange your trip. Agents may also ask for a deposit that's returned once you take your trip or goes towards the total cost.

Not necessarily. Travel companies may treat you better when you book directly — of course they will if they're saving a 40 percent commission — but there's also a bigger picture. Online agencies are an essential part of the travel ecosystem, because they allow easy price comparisons across a range of businesses.