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(UA) United Airlines 4255 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(HSV) Huntsville International Airport

Huntsville, AL, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
13
81%
Late
0
0%
Very Late
0
0%
Excessive
2
13%
Cancelled
0
0%
Diverted
1
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
15
Total Delays ( > 1 min )
4
Codeshares
15
Average Delay (min.)
91.5
Standard Deviation
114.4
Min
0
Max
247

UA 4255 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 87%
Average Delay Time 91.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 41% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 of 5
Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 91.5 min
This flight has an average delay of 91.5 minutes with a standard deviation of 114.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.

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