AMR is the parent company of American Airlines and its regional carrier subsidiaries American Eagle and Executive Airlines. Combined, the firm flies more than 3,400 daily flights to 250 cities in 40 countries through its major hubs in Dallas-Fort Worth, Chicago, Los Angeles, and New York-LaGuardia and operates one of the world's largest air freight services. AMR's network fleet consists of more than 900 aircraft, and the firm employs nearly 84,000 workers.