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Spirit Airlines giving big four domestic carriers reason to worry

Lewis Lazare
American City Business Journals

United Airlines, American Airlines, Delta Air Lines and Southwest Airlines— something to really worry about. The carrier, which operates about 35 flights a day from Chicago's O'Hare International Airport, finished the month with 87.1 percent of its flights arriving on time, according to OAG's October report. Spirit's October on-time arrival performance put the carrier ahead of even top performer Delta Air Lines (DAL), which finished October with 86.3 percent of flights arriving on-time.