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(UA) United Airlines 3897 On-time Performance Rating

Date Range:

01-Sep-2018 to 31-Oct-2018

(TYS) McGhee Tyson Airport

Knoxville, TN, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
40
89%
Late
3
7%
Very Late
0
0%
Excessive
2
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
45
Total Delays ( > 1 min )
7
Codeshares
45
Average Delay (min.)
31
Standard Deviation
25.3
Min
4
Max
69

UA 3897 On-time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 89%
Average Delay Time 31 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 64% of all other flights in the FlightStats database.
On-time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 89%
This flight has an on-time performance of 89%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
1.7 of 5
Average
Average Delay Time 31 min
This flight has an average delay of 31 minutes with a standard deviation of 25.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.