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(DL) Delta Air Lines 1257 On-time Performance Rating

Date Range:

15-Apr-2018 to 15-Jun-2018

(BOS) Logan International AirportBoston, MA, US
(ATL) Hartsfield-Jackson Atlanta International AirportAtlanta, GA, US
On-Time Performance Chart
(using rounded numbers)
On-Time
32
70%
Late
4
9%
Very Late
2
4%
Excessive
8
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
31
Codeshares
0
Average Delay (min.)
33
Standard Deviation
45.1
Min
0
Max
181
DL 1257 On-time Performance Details
Overall Rating
1.1 of 5
Poor
Percentage On-Time 70%
Average Delay Time 33 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-time Performance Rating
0.6 of 5
Poor
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 12% of other flights.
Delay Performance
1.5 of 5
Poor
Average Delay Time 33 min
This flight has an average delay of 33 minutes with a standard deviation of 45.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 31% of other flights.