(UA) United Airlines 4256 On-Time Performance Rating

Date Range:

15-Feb-2025 to 15-Apr-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(RIC) Richmond International Airport

Richmond, VA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

64%

Late

Very Late

Excessive

14%

Cancelled

21%

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

34.1

Min

Max

UA 4256 On-Time Performance Details

Overall Rating

1.1 of 5

Poor

Percentage On-Time 64%

Average Delay Time 41 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 20% of all other flights in the FlightStats database.

On-Time Performance Rating

0.4 of 5

Very Poor

Percentage On-Time 64%

This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 8% of other flights.

Delay Performance

1.7 of 5

Average

Average Delay Time 41 min

This flight has an average delay of 41 minutes with a standard deviation of 34.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.