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(UA) United Airlines 4440 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(PHL) Philadelphia International Airport

Philadelphia, PA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
19
59%
Late
2
6%
Very Late
2
6%
Excessive
7
22%
Cancelled
2
6%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
32
Total Delays ( > 1 min )
15
Codeshares
32
Average Delay (min.)
48.666666666666664
Standard Deviation
46.1
Min
0
Max
134

UA 4440 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 59%
Average Delay Time 48.666666666666664 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 10% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 59%
This flight has an on-time performance of 59%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 48.666666666666664 min
This flight has an average delay of 48.666666666666664 minutes with a standard deviation of 46.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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