Google’s new search feature let people quickly get airline flight information. Type in two different cities, or airport codes, in the Google search box and it will bring up two boxes to enter departing and returning flight dates. Below those are links to the travel Web sites Expedia, Hotwire and Orbitz. Clicking on one of those links leads directly to flight options for your selected itinerary on that site.
I tried this search feature on Google India but no luck. Looks like it is still in testing phase. But surely another revenue stream for Google.