JOHN WAYNE AIRPORT--SEPT., 1988 AIRLINE PERFORMANCE

ON-TIME PERFORMANCE RECORD

For September, 1988 (most recent information available)

* Total Flights % on Time Airline Reported ** Departing *** Arriving Alaska Airlines 112 92.7 94.7 American Airlines 2,024 89.4 89.6 America West 574 93.1 93.3 Continental Airlines 281 89.4 90.6 Delta Airlines 235 93.2 84.7 Northwest Airlines 166 83.3 52.4 TWA 115 87.9 70.2 United Airlines 116 79.7 57.9 USAir 1,463 90.4 91.1

* Total number of reported flights arriving at and departing from John Wayne Airport; includes canceled and diverted flights

** Percentage of on-time flights departing from John Wayne Airport

*** Percentage of on-time flights arriving at John Wayne Airport

FLIGHTS**** WITH THE WORST ON-TIME RECORDS

DEPARTING FROM JOHN WAYNE AIRPORT

September, 1988

* Total Flight Flights Number % Airline Number Destination Reported On time On time American 935 San Francisco 26 18 69.2 American 643 San Francisco 23 16 69.5 USAir 2847 San Francisco 23 16 69.5 TWA 482 St. Louis 24 18 75.0 USAir 699 San Francisco 30 23 76.6 Northwest 116 Minneapolis/St. Paul 26 20 76.9 American 433 Oakland 23 18 78.2 American 984 Chicago 23 18 78.2 America West 1267 Phoenix 24 19 79.1 United 256 Chicago 29 23 79.3

ARRIVING AT JOHN WAYNE AIRPORT

*Total Flight Point of Flights Number % Airline Number Origin Reported On Time On Time TWA 211 St. Louis 27 11 40.7 United 997 Chicago 24 10 41.8 Northwest 115 Minneapolis/St. Paul 26 13 50.0 Northwest 111 Minneapolis/St. Paul 28 15 53.5 Northwest 117 Minneapolis/St. Paul 28 15 53.5 USAir 2597 Las Vegas 23 14 60.9 American 835 Chicago 26 16 61.5 United 739 Chicago 28 18 64.2 USAir 2796 San Francisco 22 15 68.1 American 938 San Francisco 23 16 69.5

**** 20 or more flights per month

* Includes canceled and diverted flights

Source: Department of Transportation, Transportation Systems Center.