United Airlines and United Express operate more than 4,500 flights a day to 339 airports across five continents. In 2015, United and United Express operated more than 1.5 million flights carrying more than 140 million customers. United is proud to have the world\'s most comprehensive route network, including U.S. mainland hubs in Chicago, Denver, Houston, Los Angeles, New York/Newark, San Francisco and Washington, D.C. United operates more than 720 mainline aircraft, and this year, the airline anticipates taking delivery of 21 new Boeing aircraft, including 737 NGs, 787s and 777s. The airline is a founding member of Star Alliance, which provides service to 192 countries via 28 member airlines. For more information, visit united.com, follow @United on Twitter or connect on Facebook. The common stock of United\'s parent, United Continental Holdings, Inc., is traded on the NYSE under the symbol UAL.