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.

Travel agents may help you save money by using their know-how to find the best price on your airline tickets or hotel room—or even secure upgrades.

A Travel Agent Can Handle the Unexpected. Between weather delays, natural disasters, flight cancellations, lost luggage and much more, a lot can happen on vacation. Travel agents act as the traveler's advocate in the event something goes wrong, helping navigate the challenge of making any necessary itinerary changes.