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(UA) United Airlines 1239 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

(JAX) Jacksonville International Airport

Jacksonville, FL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
89%
Late
1
2%
Very Late
0
0%
Excessive
3
6%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
46
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
26.8
Standard Deviation
32
Min
0
Max
82

UA 1239 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 91%
Average Delay Time 26.8 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 82% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 91%
This flight has an on-time performance of 91%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 26.8 min
This flight has an average delay of 26.8 minutes with a standard deviation of 32 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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