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(UA) United Airlines 251 On-time Performance Rating

Date Range:

01-Aug-2018 to 30-Sep-2018

(IAD) Washington Dulles International Airport

Dulles, VA, US

(PDX) Portland International Airport

Portland, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
47
71%
Late
5
8%
Very Late
3
5%
Excessive
9
14%
Cancelled
0
0%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
64
Total Delays ( > 1 min )
32
Codeshares
0
Average Delay (min.)
44
Standard Deviation
72.7
Min
0
Max
324

UA 251 On-time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 73%
Average Delay Time 44 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 21% of all other flights in the FlightStats database.
On-time Performance Rating
1.9 of 5
Average
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 44 min
This flight has an average delay of 44 minutes with a standard deviation of 72.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 7% of other flights.