May 14, 2014 5:40 AM EDT

Certain airlines are consistently good at getting you there on time; some yo-yo from year to year; and others—let’s just say there’s always room for improvement. To rank the carriers with the best and worst on-time arrival records, Travel + Leisure surveyed the results provided by the Bureau of Transportation Statistics for the 12-month period ending January 2014 (the most recent numbers available).

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Altogether, the 16 airlines that report to the BTS combined for a 77.34 percent on-time average, slipping from 81.85 percent in 2012. The U.S. Department of Transportation defines “on time” as any flight that arrives within 15 minutes of schedule.

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