background

(UA) United Airlines 861 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(IAD) Washington Dulles International Airport

Dulles, VA, US

(GRU) Sao Paulo-Guarulhos International Airport

Sao Paulo, SP, BR

On-Time Performance Chart

(using rounded numbers)
On-Time
44
69%
Late
5
8%
Very Late
5
8%
Excessive
6
9%
Cancelled
0
0%
Diverted
4
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
34
Codeshares
0
Average Delay (min.)
42.11764705882353
Standard Deviation
118.6
Min
0
Max
697

UA 861 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 73%
Average Delay Time 42.11764705882353 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 21% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
0.8 of 5
Poor
Average Delay Time 42.11764705882353 min
This flight has an average delay of 42.11764705882353 minutes with a standard deviation of 118.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.