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(DL) Delta Air Lines 1147 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
55
89%
Late
2
3%
Very Late
1
2%
Excessive
3
5%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
9
Codeshares
0
Average Delay (min.)
42.77777777777778
Standard Deviation
43.4
Min
0
Max
131

DL 1147 On-Time Performance Details

Overall Rating
3.2 of 5
Average
Percentage On-Time 90%
Average Delay Time 42.77777777777778 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 63% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
1.4 of 5
Poor
Average Delay Time 42.77777777777778 min
This flight has an average delay of 42.77777777777778 minutes with a standard deviation of 43.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.

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