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(UA) United Airlines 4599 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(BHM) Birmingham-Shuttlesworth International Airport

Birmingham, AL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
27
44%
Late
9
15%
Very Late
4
7%
Excessive
14
23%
Cancelled
4
7%
Diverted
3
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
30
Codeshares
58
Average Delay (min.)
61.333333333333336
Standard Deviation
54
Min
0
Max
201

UA 4599 On-Time Performance Details

Overall Rating
0.0 of 5
Very Poor
Percentage On-Time 47%
Average Delay Time 61.333333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 47%
This flight has an on-time performance of 47%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 61.333333333333336 min
This flight has an average delay of 61.333333333333336 minutes with a standard deviation of 54 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.