If you’ve seen one travel Web site, you’ve pretty much seen them all. Type in the dates you’re traveling and your destination, find a flight and hotel.

Customers are so used to this setup, it would actually be a challenge to fundamentally change the user experience without confusing people, says Seth Brody, vice president and general manager for hotels and packaging at Orbitz Worldwide. 

The online travel agency has spent the past two years upgrading its site with Rich Internet Application (RIA) technology, and designers face the challenge of providing a more interactive user experience without overwhelming customers with new functionality.

Click to see: See an interactive map on Orbitz Web site

“There is a tax to pay for introducing too many of these types of functionalities to your customers,” Brody said at this week’s Gartner Web Innovation Summit in Las Vegas, where he was a presenter. “I don’t think we have fundamentally changed the searching experience yet. That’s something that needs to be explored. All online travel agencies are sort of generic in the way they ask users to interact with their site.”

But that doesn’t mean Orbitz hasn’t been successful. Sales increases related to Web site upgrades have increased profits per visitor by 3.5%.

Orbitz’s “neighborhood matrix” project allows users to mouse over images or text and get more information in pop-ups, without waiting for the page to reload. If you’re shopping for a hotel room, you can view a map to drill down to specific neighborhoods. Mouse over a neighborhood and you’ll see what tourist attractions it has. Mouse over a hotel and you’ll see prices and star ratings.

Users don’t have to spend as much time scrolling down to find hotel information either, since a redesign created a single view of pricing and inventory by neighborhood and star level horizontally across the screen.

“It’s much easier for [users] to get the information they need without having to navigate from one place to another,” Brody said. “Whereas most of our competitors present just a list of options for users in Las Vegas, we now [show] the types of things you’d want to see. Say you were staying at Caesars Palace, we’ll show you the shows and attractions.”

The 3.5% increase in profits per Web site visitor is a big deal at Orbitz, Brody says.