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(UA) United Airlines 4304 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(TYS) Knoxville McGhee Tyson Airport

Knoxville, TN, US

On-Time Performance Chart

(using rounded numbers)
On-Time
31
74%
Late
2
5%
Very Late
2
5%
Excessive
6
14%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
41
Total Delays ( > 1 min )
18
Codeshares
41
Average Delay (min.)
43.72222222222222
Standard Deviation
48.4
Min
0
Max
165

UA 4304 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 76%
Average Delay Time 43.72222222222222 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 40% of all other flights in the FlightStats database.
On-Time Performance Rating
2.9 of 5
Average
Percentage On-Time 76%
This flight has an on-time performance of 76%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 43.72222222222222 min
This flight has an average delay of 43.72222222222222 minutes with a standard deviation of 48.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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