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(DL) Delta Air Lines 2009 On-time Performance Rating

Date Range:

01-Sep-2018 to 31-Oct-2018

(ORD) O'Hare International Airport

Chicago, IL, US

(ATL) Hartsfield-Jackson Atlanta International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
33
54%
Late
10
16%
Very Late
7
11%
Excessive
10
16%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
39
Codeshares
0
Average Delay (min.)
31
Standard Deviation
28
Min
0
Max
100

DL 2009 On-time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 55%
Average Delay Time 31 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.5 shows that this flight has on-time performance characteristics better than 8% of all other flights in the FlightStats database.
On-time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 55%
This flight has an on-time performance of 55%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 31 min
This flight has an average delay of 31 minutes with a standard deviation of 28 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.