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(UA) United Airlines 4576 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
37
79%
Late
2
4%
Very Late
0
0%
Excessive
4
9%
Cancelled
1
2%
Diverted
3
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
10
Codeshares
44
Average Delay (min.)
47.4
Standard Deviation
48.5
Min
0
Max
127

UA 4576 On-Time Performance Details

Overall Rating
3.0 of 5
Average
Percentage On-Time 84%
Average Delay Time 47.4 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3 shows that this flight has on-time performance characteristics better than 59% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 84%
This flight has an on-time performance of 84%. 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
1.2 of 5
Poor
Average Delay Time 47.4 min
This flight has an average delay of 47.4 minutes with a standard deviation of 48.5 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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