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(UA) United Airlines 4425 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SDF) Louisville Muhammad Ali International Airport

Louisville, KY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
15
68%
Late
1
5%
Very Late
1
5%
Excessive
5
23%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
22
Total Delays ( > 1 min )
8
Codeshares
22
Average Delay (min.)
66
Standard Deviation
38.1
Min
0
Max
110

UA 4425 On-Time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 68%
Average Delay Time 66 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.5 shows that this flight has on-time performance characteristics better than 9% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 66 min
This flight has an average delay of 66 minutes with a standard deviation of 38.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

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