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(UA) United Airlines 4015 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(BHM) Birmingham-Shuttlesworth International Airport

Birmingham, AL, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
21
68%
Late
1
3%
Very Late
4
13%
Excessive
4
13%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
31
Total Delays ( > 1 min )
14
Codeshares
31
Average Delay (min.)
31.214285714285715
Standard Deviation
22.8
Min
0
Max
77

UA 4015 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 68%
Average Delay Time 31.214285714285715 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 33% of all other flights in the FlightStats database.
On-Time Performance Rating
0.7 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 14% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 31.214285714285715 min
This flight has an average delay of 31.214285714285715 minutes with a standard deviation of 22.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

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