America's Best and Worst Airlines 2014

Flight delays, lost bags, denied boardings — these are just some of the issues that plague the American airline industry. Each year, Brent Bowen, of Embry-Riddle Aeronautical University, and Dean Headley, of Wichita State University, analyze monthly performance data published by the U.S. Department of Transportation to determine which U.S.-based airlines are operating well and which ones could step up their game. See how the 15 evaluated national and regional airlines fared in the 2014 Airline Quality Rating (AQR) report.

Note: The AQR report assigns each airline a ranking based on its score with 1 being best and 15 being worst. For this slideshow's purposes, the airlines are ordered from the highest-scoring (shown as No. 15) to the lowest-scoring (shown as No. 1).

Read More: America's Meanest Airlines 2014

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