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(DL) Delta Air Lines 4978 On-time Performance Rating

Date Range:

01-Oct-2018 to 30-Nov-2018

(ORD) O'Hare International Airport

Chicago, IL, US

(JFK) John F. Kennedy International Airport

New York, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
53
88%
Late
2
3%
Very Late
2
3%
Excessive
0
0%
Cancelled
1
2%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
16
Codeshares
58
Average Delay (min.)
9
Standard Deviation
10.3
Min
0
Max
36

DL 4978 On-time Performance Details

Overall Rating
4.8 of 5
Very Good
Percentage On-Time 91%
Average Delay Time 9 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.8 shows that this flight has on-time performance characteristics better than 95% of all other flights in the FlightStats database.
On-time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 91%
This flight has an on-time performance of 91%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
4.6 of 5
Very Good
Average Delay Time 9 min
This flight has an average delay of 9 minutes with a standard deviation of 10.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.