Google is pulling a software tool that let small companies access search information on airfares, a potential blow to online travel newcomers. From a report: Google's tool was opened in 2011 after its $700 million acquisition of ITA Software, an online airfare broker. In approving the deal, a federal judge required that Google keep an ITA flight search and pricing software, called QPX, accessible to third parties for at least five years. In 2014, Google created a cheaper version of the QPX software, called QPX Express, meant to target smaller companies and startups. Google shut that service down due to "low interest," according to a company spokeswoman. Google said it is keeping intact a version of the original software tool for corporate customers. Google used ITA's tool to create Google Flights, which aggregates airline prices directly inside its powerful search engine.