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(UA) United Airlines 4558 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(MSN) Dane County Regional Airport

Madison, WI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
4
80%
Late
0
0%
Very Late
1
20%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
5
Total Delays ( > 1 min )
1
Codeshares
5
Average Delay (min.)
44
Standard Deviation
0
Min
0
Max
44

UA 4558 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 80%
Average Delay Time 44 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-Time Performance Rating
3.1 of 5
Average
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
1.9 of 5
Average
Average Delay Time 44 min
This flight has an average delay of 44 minutes with a standard deviation of 0 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.

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