Not too long ago, a travel site earned its keep if it simply steered you to a cut-rate airfare. Today, that's not enough. Airlines offer those same fares on their own sites―minus the $5-to-$10 booking fees and often with frequent-flier miles as a bonus. So the top travel sites have evolved from travel bots to travel agents, pointing you to a growing roster of package deals, such as airfare and hotel combinations at specially negotiated (and, in theory, money-saving) rates. Can you really save a bundle? You bet. But the sites vary widely in what they give you, how much it will cost you, and how easy they make the whole process. We tested each site by searching for several of the same trips. Our results should help you get through travel-booking turbulence.
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