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(UA) United Airlines 4989 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(MOB) Mobile Regional Airport

Mobile, AL, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
36
92%
Late
2
5%
Very Late
0
0%
Excessive
1
3%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
39
Total Delays ( > 1 min )
4
Codeshares
39
Average Delay (min.)
27
Standard Deviation
22.6
Min
0
Max
60

UA 4989 On-Time Performance Details

Overall Rating
4.0 of 5
Good
Percentage On-Time 92%
Average Delay Time 27 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4 shows that this flight has on-time performance characteristics better than 78% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 92%
This flight has an on-time performance of 92%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 27 min
This flight has an average delay of 27 minutes with a standard deviation of 22.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.