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(UA) United Airlines 503 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(DEN) Denver International Airport

Denver, CO, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
65%
Late
3
18%
Very Late
0
0%
Excessive
3
18%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
50.083333333333336
Standard Deviation
69.9
Min
0
Max
172

UA 503 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 65%
Average Delay Time 50.083333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.
On-Time Performance Rating
0.7 of 5
Poor
Percentage On-Time 65%
This flight has an on-time performance of 65%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 14% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 50.083333333333336 min
This flight has an average delay of 50.083333333333336 minutes with a standard deviation of 69.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.

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