Google’s plan to acquire ITA Software may result in an antitrust probe by the U.S. Federal Trade Commission (FTC), two sources speaking to Bloomberg said Tuesday. The FTC is currently waiting for the Justice Department to render a decision on whether or not the acquisition will stifle competition among firms competing for clicks in the travel search engine market. Both the FTC and the Justice Department are capable of executing an antitrust investigation, and some pundits believe the scale of this probe could match that of the Justice Department’s antitrust investigation of Microsoft during the 1990’s. The search engine giant “could fight the FTC, but that’s going to cost a lot of money and time,” Keith Hylton, an antitrust law professor at Boston University School of Law told Bloomberg. Google also faces an antitrust probes abroad. On March 31st Microsoft filed an antitrust complaint with the European Commission in regards to Google’s search operations and practices in the European Union, alleging that Google has made it harder for other firms to compete in the search market there. Google announced that it had plans to acquire ITA Software, a firm that helps airlines manage flight times and sell tickets at the best prices, in July of 2010. Google hopes to use the acquisition to create new flight search tools that will allow consumers to find better flight options and prices.