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(UA) United Airlines 4534 On-Time Performance Rating

Date Range:

15-Aug-2025 to 15-Oct-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(SYR) Syracuse Hancock International Airport

Syracuse, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
28
90%
Late
1
3%
Very Late
1
3%
Excessive
1
3%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
31
Total Delays ( > 1 min )
7
Codeshares
31
Average Delay (min.)
20.428571428571427
Standard Deviation
22.1
Min
0
Max
65

UA 4534 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 90%
Average Delay Time 20.428571428571427 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 82% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. 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
3.5 of 5
Average
Average Delay Time 20.428571428571427 min
This flight has an average delay of 20.428571428571427 minutes with a standard deviation of 22.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.

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