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(UA) United Airlines 4425 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(CHA) Chattanooga Metropolitan Airport

Chattanooga, TN, US

On-Time Performance Chart

(using rounded numbers)
On-Time
12
67%
Late
2
11%
Very Late
1
6%
Excessive
2
11%
Cancelled
0
0%
Diverted
1
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
6
Codeshares
17
Average Delay (min.)
30.166666666666668
Standard Deviation
16.8
Min
0
Max
50

UA 4425 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 71%
Average Delay Time 30.166666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 47% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 30.166666666666668 min
This flight has an average delay of 30.166666666666668 minutes with a standard deviation of 16.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.

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