AMR is the parent company of American Airlines and American Eagle Airlines. American Airlines is the world's largest airline. American, American Eagle and the AmericanConnection regional airlines serve more than 250 cities in more than 40 countries and territories with approximately 3,900 daily flights. The combined network fleet numbers more than 1,000 aircraft. American's award-winning website, AA.com, provides users with easy access to check and book fares, plus personalized news, information and travel offers.