Bing.com/travel helps you decide when to pull the trigger. After you put in your desired flight itinerary, the site tells you whether to buy your ticket now or to wait, based on historical fare data and price trends. (The site claims to have about a 75 percent accuracy rate, which independent experts don’t dispute.) You can use Bing’s “rate indicator” to shop for hotel rooms, too. It tells you whether a current price is a “deal,” an “average rate,” or “not a deal.”
Many websites make lofty promises, but few deliver. From booking a flight to outlining an itinerary to tracking frequent-flier miles, we scoured the Internet for 10 essential websites for today's traveler.