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(UA) United Airlines 4534 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(PHL) Philadelphia International Airport

Philadelphia, PA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
2
20%
Late
1
10%
Very Late
1
10%
Excessive
4
40%
Cancelled
1
10%
Diverted
1
10%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
9
Total Delays ( > 1 min )
6
Codeshares
9
Average Delay (min.)
97.66666666666667
Standard Deviation
59.9
Min
0
Max
165

UA 4534 On-Time Performance Details

Overall Rating
0.0 of 5
Very Poor
Percentage On-Time 22%
Average Delay Time 97.66666666666667 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 22%
This flight has an on-time performance of 22%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 97.66666666666667 min
This flight has an average delay of 97.66666666666667 minutes with a standard deviation of 59.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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