(UA) United Airlines 255 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(DEN) Denver International Airport

Denver, CO, US

(PHL) Philadelphia International Airport

Philadelphia, PA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

82%

Late

Very Late

Excessive

18%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

62.42857142857143

Standard Deviation

56.5

Min

Max

176

UA 255 On-Time Performance Details

Overall Rating

2.4 of 5

Average

Percentage On-Time 82%

Average Delay Time 62.42857142857143 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 46% of all other flights in the FlightStats database.

On-Time Performance Rating

4.2 of 5

Good

Percentage On-Time 82%

This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 84% of other flights.

Delay Performance

0.5 of 5

Very Poor

Average Delay Time 62.42857142857143 min

This flight has an average delay of 62.42857142857143 minutes with a standard deviation of 56.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.