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(UA) United Airlines 1236 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(DEN) Denver International Airport

Denver, CO, US

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
32
78%
Late
4
10%
Very Late
0
0%
Excessive
4
10%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
41
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
37.9
Standard Deviation
30.7
Min
0
Max
92

UA 1236 On-Time Performance Details

Overall Rating
2.4 of 5
Average
Percentage On-Time 78%
Average Delay Time 37.9 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 47% of all other flights in the FlightStats database.
On-Time Performance Rating
2.9 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.
Delay Performance
1.9 of 5
Average
Average Delay Time 37.9 min
This flight has an average delay of 37.9 minutes with a standard deviation of 30.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 38% of other flights.

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