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(UA) United Airlines 503 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
39
72%
Late
5
9%
Very Late
4
7%
Excessive
4
7%
Cancelled
2
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
54
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
45.05882352941177
Standard Deviation
57.8
Min
0
Max
203

UA 503 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 72%
Average Delay Time 45.05882352941177 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 21% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
0.8 of 5
Poor
Average Delay Time 45.05882352941177 min
This flight has an average delay of 45.05882352941177 minutes with a standard deviation of 57.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.

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