''These guys have become a credible threat and competitor to Orbitz, Travelocity, and Expedia," said Al Lenza, vice president of distribution and e-Commerce at Northwest Airlines. ''It's good for the consumer, because the search engines highlight the fees the travel agencies charge."
Not everyone is convinced. Henry Harteveldt, vice president of travel research at Forrester Research, says travel search companies, sometimes called metasearch sites, are generating only about 1 percent of airline bookings. He said that's not enough to survive.
''Metasearch 1.0 is dead," he said. ''It's time for Metasearch 2.0 to emerge and service a slightly different purpose."
The travel search engines definitely face an uphill struggle. Expedia, Orbitz, and Travelocity handle the bulk of online travel sales in the United States. They are online travel agents that help customers find fares, rooms, or cars and then book them, usually charging a fee for the service they provide.
Travel search engines have a very different business model. Instead of selling travel, they assemble travel information. The searcher chooses the fare or hotel he prefers and clicks through to make a purchase directly from the airline or hotel chain. The travel search engines don't charge their customers anything. Instead, they make money from small referral fees paid by travel suppliers and advertising on their websites. High volume is the key to their business.
For consumers, the travel search engines require a bit more work because they make booking a two-step process. Yet they also offer a chance at a better deal, both in terms of avoiding service fees and having more fares to choose from. But they don't have every fare or hotel. No one does. Southwest Airlines, for example, won't let its fares be posted on any third-party website.
Sidestep is perhaps the best-known travel search engine. The Santa Clara, Calif., company has been around five years in the form of software that can be downloaded to a customer's browser, but only a year as a stand-alone website. Sidestep is functional, not flashy, and focused on making money.
''This is a proven model," said Phil Carpenter, vice president of corporate marketing. ''We're the only player in travel search that's shown we can make a living -- and a good one -- doing this."