Airline On-Time Departure/Arrival Data

Im booked on Lufthansa flight DLH403 to Frankfurt in mid October from Newark (EWR). I looked at LHs east coast on time performance for the last 63 flights at all locations and came up with wildly different efficiencies; maybe forum members can explain the numbers.

Airport/Flight/Time/% on-time/aircraft
BOS…421…21:50…74…340
BOS…423…16:25…90…340
JFK401…17:00.74747
JFK405…21:10.33747
JFK407…18:05.42330
EWR403…17:15.26747(my flight)
EWR407…18:05.42330
PHL427…18:00.53340
IAD417…17:11.96747
IAD419…18:10.73747
MIA463…15:30.47747

data from FlightAware and flightstats.com/go/Home/home.do

MY GUESS WE’RE THE THIRD 747 IN :15 FROM THE EAST COAST.