(UA) United Airlines 4015 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(COS) Colorado Springs Airport

Colorado Springs, CO, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

88%

Late

Very Late

Excessive

13%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

115.5

Standard Deviation

152

Min

Max

223

UA 4015 On-Time Performance Details

Overall Rating

2.1 of 5

Average

Percentage On-Time 88%

Average Delay Time 115.5 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 88%

This flight has an on-time performance of 88%. 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 115.5 min

This flight has an average delay of 115.5 minutes with a standard deviation of 152 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 3% of other flights.