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(UA) United Airlines 4861 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(ROC) Frederick Douglass Greater Rochester Intl Airport

Rochester, NY, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
22
59%
Late
1
3%
Very Late
0
0%
Excessive
6
16%
Cancelled
8
22%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
37
Total Delays ( > 1 min )
14
Codeshares
37
Average Delay (min.)
50.214285714285715
Standard Deviation
59.1
Min
0
Max
197

UA 4861 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 60%
Average Delay Time 50.214285714285715 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 12% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
1.1 of 5
Poor
Average Delay Time 50.214285714285715 min
This flight has an average delay of 50.214285714285715 minutes with a standard deviation of 59.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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