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(UA) United Airlines 255 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(ATW) Appleton International Airport

Appleton, WI, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
34
87%
Late
1
3%
Very Late
2
5%
Excessive
2
5%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
39
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
30.272727272727273
Standard Deviation
38
Min
0
Max
131

UA 255 On-Time Performance Details

Overall Rating
4.1 of 5
Good
Percentage On-Time 87%
Average Delay Time 30.272727272727273 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.1 shows that this flight has on-time performance characteristics better than 81% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. 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
3.3 of 5
Average
Average Delay Time 30.272727272727273 min
This flight has an average delay of 30.272727272727273 minutes with a standard deviation of 38 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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