(UA) United Airlines 4541 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(ROA) Roanoke-Blacksburg Regional Airport

Roanoke, VA, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

91%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

79.2

Min

Max

115

UA 4541 On-Time Performance Details

Overall Rating

2.8 of 5

Average

Percentage On-Time 91%

Average Delay Time 59 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.8 shows that this flight has on-time performance characteristics better than 55% of all other flights in the FlightStats database.

On-Time Performance Rating

4.4 of 5

Good

Percentage On-Time 91%

This flight has an on-time performance of 91%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 88% of other flights.

Delay Performance

1.2 of 5

Poor

Average Delay Time 59 min

This flight has an average delay of 59 minutes with a standard deviation of 79.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.