(UA) United Airlines 1229 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, 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.)

11.714285714285714

Standard Deviation

12.1

Min

Max

UA 1229 On-Time Performance Details

Overall Rating

4.7 of 5

Very Good

Percentage On-Time 94%

Average Delay Time 11.714285714285714 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.7 shows that this flight has on-time performance characteristics better than 93% of all other flights in the FlightStats database.

On-Time Performance Rating

5.0 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 100% of other flights.

Delay Performance

4.4 of 5

Good

Average Delay Time 11.714285714285714 min

This flight has an average delay of 11.714285714285714 minutes with a standard deviation of 12.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 88% of other flights.