WHEN it comes to airline headaches, the realization that the guy next to you paid a lot less for his seat is right up there with annoyances like missed connections and lost luggage.
Most people might chalk it up to the unfathomable mysteries of airline ticket pricing and move on. But not Oren Etzioni.
On a flight from Seattle to Los Angeles a few years ago, Etzioni learned that an aisle mate had paid about $100 less for his ticket than Etzioni had.
When he returned to the University of Washington, where he is an expert on artificial intelligence, Etzioni set about creating a computer program that could ensure that fliers get the best deal.
His brainchild, Farecast.com, attempts to tell travelers when they should buy a ticket, predicting whether a fare will go up or down.
"It was a very personal thing for me," said Etzioni, who still teaches at the university and is working on other "intelligent" Internet search engines. "I was frustrated and I thought to myself, this is terrible and it needs to be solved."
Farecast has created a lot of buzz in the travel industry, but it's just one of a bevy of Internet-based travel services and tools that are redefining how travelers book flights.
"The online travel market is a hotbed for experimentation," said Jeffrey Grau, senior analyst for Internet research firm EMarketer. "New travel sites are seemingly popping up weekly."
A few weeks ago, a new site, Yapta.com, made a splash by launching a tool that can "tag" specific flights and alert a traveler when the fare changes. Yapta is an acronym for "your amazing personal travel assistant."
One advantage of the service is that if the fare drops after it has been purchased, the traveler can typically request a credit voucher or a refund from the airline. The catch: To qualify for the credit, the ticket must have been purchased directly from the airline.
The proliferation of sites such as Yapta is not surprising, travel analysts say, considering that, for the first time, more travel in the U.S. is expected to be booked online this year than by other means, according to PhoCusWright, an Internet research firm. EMarketer estimates that 41.3 million U.S. households will book travel on the Internet, or 52.5% of all households with online access.
