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(UA) United Airlines 4534 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(ROC) Frederick Douglass Greater Rochester Intl Airport

Rochester, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
69%
Late
0
0%
Very Late
0
0%
Excessive
4
25%
Cancelled
1
6%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
4
Codeshares
16
Average Delay (min.)
98.25
Standard Deviation
22.9
Min
0
Max
125

UA 4534 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 69%
Average Delay Time 98.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 14% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 69%
This flight has an on-time performance of 69%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 98.25 min
This flight has an average delay of 98.25 minutes with a standard deviation of 22.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

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