Large and Medium Airports by Enplanements and Overall Delay: 2015
Airports are categorized based on their share of total enplaned passengers: Large–1% or more; Medium–0.25%-0.99%.
Among large airports, LaGuardia Airport had the highest percentage of flights delayed in 2015. Palm Beach International Airport had the most delayed flights for medium-sized airports, with 22.2 percent of flights delayed.
U.S. Department of Transportation, Bureau of Transportation Statistics, Air Carrier Airport Activity Statistics and Ontime Performance Data, available at www.transtats.bts.gov as of March 2016.