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(DL) Delta Air Lines 4489 On-time Performance Rating

Date Range:

15-May-2018 to 15-Jul-2018

(SEA) Seattle-Tacoma International AirportSeattle, WA, US
(SIT) Sitka AirportSitka, AK, US
On-Time Performance Chart
(using rounded numbers)
On-Time
29
73%
Late
3
8%
Very Late
4
10%
Excessive
2
5%
Cancelled
0
0%
Diverted
2
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
38
Total Delays ( > 1 min )
21
Codeshares
38
Average Delay (min.)
31
Standard Deviation
51.7
Min
0
Max
192
DL 4489 On-time Performance Details
Overall Rating
2.9 of 5
Average
Percentage On-Time 76%
Average Delay Time 31 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.
On-time Performance Rating
3.3 of 5
Average
Percentage On-Time 76%
This flight has an on-time performance of 76%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 66% of other flights.
Delay Performance
2.5 of 5
Average
Average Delay Time 31 min
This flight has an average delay of 31 minutes with a standard deviation of 51.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 50% of other flights.