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(UA) United Airlines 3989 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(IND) Indianapolis International Airport

Indianapolis, IN, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
48
89%
Late
1
2%
Very Late
1
2%
Excessive
3
6%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
53
Total Delays ( > 1 min )
9
Codeshares
53
Average Delay (min.)
59.22222222222222
Standard Deviation
69.9
Min
0
Max
165

UA 3989 On-Time Performance Details

Overall Rating
2.9 of 5
Average
Percentage On-Time 91%
Average Delay Time 59.22222222222222 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 56% 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
0.7 of 5
Poor
Average Delay Time 59.22222222222222 min
This flight has an average delay of 59.22222222222222 minutes with a standard deviation of 69.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.

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