(UA) United Airlines 4031 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(DSM) Des Moines International Airport

Des Moines, IA, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

94%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

70.7

Min

Max

105

UA 4031 On-Time Performance Details

Overall Rating

3.3 of 5

Average

Percentage On-Time 94%

Average Delay Time 55 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 65% of all other flights in the FlightStats database.

On-Time Performance Rating

4.9 of 5

Very Good

Percentage On-Time 94%

This flight has an on-time performance of 94%. 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

1.7 of 5

Average

Average Delay Time 55 min

This flight has an average delay of 55 minutes with a standard deviation of 70.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.