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(UA) United Airlines 641 On-time Performance Rating

Date Range:

01-Aug-2018 to 30-Sep-2018

(IAD) Washington Dulles International Airport

Dulles, VA, US

(BOS) Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
54
86%
Late
3
5%
Very Late
1
2%
Excessive
4
6%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
62
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
27
Standard Deviation
53.2
Min
0
Max
243

UA 641 On-time Performance Details

Overall Rating
4.0 of 5
Good
Percentage On-Time 87%
Average Delay Time 27 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4 shows that this flight has on-time performance characteristics better than 79% of all other flights in the FlightStats database.
On-time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. 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
3.1 of 5
Average
Average Delay Time 27 min
This flight has an average delay of 27 minutes with a standard deviation of 53.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.