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(SK) SAS 3991 On-time Performance Rating

Date Range:

01-Sep-2018 to 31-Oct-2018

(ORD) O'Hare International Airport

Chicago, IL, US

(DCA) Ronald Reagan National Airport

Washington, DC, US

On-Time Performance Chart

(using rounded numbers)
On-Time
54
87%
Late
1
2%
Very Late
1
2%
Excessive
4
6%
Cancelled
0
0%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
18
Codeshares
60
Average Delay (min.)
47
Standard Deviation
77.5
Min
0
Max
238

SK 3991 On-time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 90%
Average Delay Time 47 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-time Performance Rating
4.9 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 99% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 47 min
This flight has an average delay of 47 minutes with a standard deviation of 77.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.