background

(UA) United Airlines 509 On-Time Performance Rating

Date Range:

15-Jul-2020 to 15-Sep-2020

(IAD) Washington Dulles International Airport

Dulles, VA, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
38
86%
Late
0
0%
Very Late
1
2%
Excessive
1
2%
Cancelled
4
9%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
4
Codeshares
0
Average Delay (min.)
20
Standard Deviation
21.6
Min
1
Max
45

UA 509 On-Time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 86%
Average Delay Time 20 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.5 shows that this flight has on-time performance characteristics better than 69% of all other flights in the FlightStats database.
On-Time Performance Rating
3.5 of 5
Average
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 69% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 20 min
This flight has an average delay of 20 minutes with a standard deviation of 21.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.