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(UA) United Airlines 4036 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(GRR) Grand Rapids Gerald R. Ford International Airport

Grand Rapids, MI, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
21
84%
Late
1
4%
Very Late
1
4%
Excessive
2
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
25
Total Delays ( > 1 min )
10
Codeshares
25
Average Delay (min.)
29.1
Standard Deviation
38.9
Min
0
Max
120

UA 4036 On-Time Performance Details

Overall Rating
3.9 of 5
Good
Percentage On-Time 84%
Average Delay Time 29.1 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.9 shows that this flight has on-time performance characteristics better than 77% of all other flights in the FlightStats database.
On-Time Performance Rating
4.5 of 5
Good
Percentage On-Time 84%
This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 90% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 29.1 min
This flight has an average delay of 29.1 minutes with a standard deviation of 38.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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