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(UA) United Airlines 4066 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

(COS) Colorado Springs Airport

Colorado Springs, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
32
89%
Late
2
6%
Very Late
0
0%
Excessive
1
3%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
9
Codeshares
36
Average Delay (min.)
13.555555555555555
Standard Deviation
19.9
Min
0
Max
64

UA 4066 On-Time Performance Details

Overall Rating
4.6 of 5
Very Good
Percentage On-Time 89%
Average Delay Time 13.555555555555555 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.6 shows that this flight has on-time performance characteristics better than 91% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 89%
This flight has an on-time performance of 89%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 13.555555555555555 min
This flight has an average delay of 13.555555555555555 minutes with a standard deviation of 19.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.

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