Travel agents have an edge over Internet travel sites, because they are trained to work the system. Travel agents know how to use the central reservation systems better and faster to unearth information. They may have access to all airline booking systems, although sometimes they are under contract with only one central reservation system. They also can check fares on lesser-known airlines not in the four systems. Typically, airlines outside the systems are the smaller, cheap airlines. Obviously, you don't want to leave them out of your search!

Another travel agent benefit is the access to a wide range of services beyond the flight. A travel agent can provide information about vacation package deals and finalize accommodations and car rentals in one fell swoop. These packages can be amazing, because even if the flight itself isn't such a deal, you might get tremendous savings on hotel prices. Internet travel sites also provide these services, but like the airline searches, they require an affinity for entering dates and specifying choices. Leading travel agents such as Expedia.com and Travelocity.com let travelers compare rates among hundreds of airlines, hotel chains, or car rental companies.

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