(UA) United Airlines 4561 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(IAD) Washington Dulles International Airport

Dulles, VA, US

(DAY) James M Cox Dayton International Airport

Dayton, OH, US

On-Time Performance Chart

(using rounded numbers)

On-Time

77%

Late

15%

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.)

29.333333333333332

Standard Deviation

Min

Max

UA 4561 On-Time Performance Details

Overall Rating

2.9 of 5

Average

Percentage On-Time 77%

Average Delay Time 29.333333333333332 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.9 shows that this flight has on-time performance characteristics better than 57% of all other flights in the FlightStats database.

On-Time Performance Rating

2.9 of 5

Average

Percentage On-Time 77%

This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.

Delay Performance

2.9 of 5

Average

Average Delay Time 29.333333333333332 min

This flight has an average delay of 29.333333333333332 minutes with a standard deviation of 18 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.