b'AIRFIELD DELAY PER AIRCRAFT OPERATION has been a well-supported methodology to calculate aircraft delays, When calculating the average delay per flight operation, delay isaccepted by both government and industry, as the most valid, averaged by each flights taxi time and airborne time. The totalaccurate and reliable metric. 1averaged delay is expressed in minutes of delay per operation. TheWhen compared to other large hub U.S. airports as shown in the table current industry standard for estimating delay is established by thebelow, MSP ranked 20th with an overall average delay of 5.7 minutes Federal Aviation Administration (FAA) Aviation System Performancein 2019; in 2018 MSP ranked 16th with an overall average of 6.2 Metrics (ASPM). The FAA uses ASPM results to create performanceminutes of delay.benchmarks for airports each year. Since 2005, use of ASPM data Top 25 Large Hub Airports with Highest Average Total Delay per Operation 2018-2019RankAirport2019 Total2019 Average Minutes2018 Average Minutes2018 RankChange fromAirports Operationsof Delay per Operation of Delay per Operation2018 to 20191LGA374,53911.911.210.72ORD919,70411.711.120.63EWR449,54310.79.930.84CLT579,14710.69.940.75JFK463,1989.39.75-0.46PHL390,3219.19.66-0.57SEA450,4878.78.0100.78DFW720,0078.48.280.29SFO458,5028.38.67-0.310IAH478,0708.27.3120.911DCA298,3107.87.911-0.112DEN640,0987.15.9191.213LAX691,2577.08.19-1.214IAD308,1596.96.5130.315RDU223,2496.56.2170.316BOS432,8536.56.3150.117MIA416,7736.26.514-0.318MCO366,1696.26.1180.119FLL331,4556.25.1271.120MSP406,0735.76.216-0.521HPN158,6725.75.5220.222DTW396,9095.65.6210.023SAN231,3545.34.9280.424DAL231,8795.35.1260.225MEM229,4515.25.2240.1Source: FAA Aviation System Performance Metrics1Prior to 2005, the industry standard was the FAAs Consolidated Operations and Delay Analysis System (CODAS); the U.S. Department of Transportation (DOT) AirlineviiiService Quality Performance (ASQP) data were used to compare optimal versus actual taxi and flight times for MSP.'